List of the Cenozoic life of California

This list of the Cenozoic life of California contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of California and are between 66 million and 10,000 years of age.

A

Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• † Abantis
  • † Abantis velifer
• Abies
  • † Abies concoloroides
  • † Abies klamathensis
• † Aboma
  • † Aboma antiqua – type locality for species
• † Acalypha
  • † Acalypha aequalis
• Acanthina
  • † Acanthina spirata
• Acanthocardia
  • † Acanthocardia brewerii – type locality for species
  • † Acanthocardia sorrentoense
• Acar
  • † Acar bailyi – or unidentified comparable form
• Accipiter
  • † Accipiter velox
• Acentrophryne
  • † Acentrophryne longidens
• Acer
  • † Acer aequidentatum
  • † Acer scottiae
• Acesta
  • † Acesta multiradiata
• † Achaenodon
  • † Achaenodon robustus – or unidentified comparable form
• Acila
  • † Acila castrensis
  • † Acila conradi
  • † Acila decisa
  • † Acila gabbiana
  • † Acila muta
  • † Acila semirostrata – or unidentified comparable form
  • † Acila shumardi
• Acipenser

  • 

    Illustration of a living Acipenser medirostris , or green sturgeon

    † Acipenser medirostris – or unidentified comparable form
• Acmaea
  • † Acmaea dickersoni – or unidentified related form
  • † Acmaea digitalis – or unidentified comparable form
  • † Acmaea insessa
  • † Acmaea limatula
  • † Acmaea mitra
  • † Acmaea persona
  • † Acmaea ruckmani – or unidentified comparable form
  • † Acmaea tejonensis – or unidentified comparable form

• 

  Mounted fossilized skeleton of the Miocene horse Acritohippus

  † Acritohippus
  • † Acritohippus isonesus – or unidentified comparable form
  • † Acritohippus quinni – type locality for species
  • † Acritohippus stylodontus
  • † Acritohippus tertius – or unidentified comparable form
• † Acritoparamys – or unidentified comparable form
• Acteocina
  • † Acteocina culcitella
  • † Acteocina inculta
  • † Acteocina magdalensis
• Acteon
  • † Acteon boulderanus
  • † Acteon lawsoni
  • † Acteon punctocaelatus
  • † Acteon traski
• Actinemys

  • 

    A living Actinemys marmorata , or western pond turtle

    † Actinemys marmorata
• † Acutostrea
  • † Acutostrea idriaensis
  • † Acutostrea miguelensis
• Admete
  • † Admete rhyssa
• Adula
  • † Adula californiensis
  • † Adula diegensis
• Aechmophorus
  • † Aechmophorus elasson
  • † Aechmophorus occidentalis
• † Aechomophorus
  • † Aechomophorus occidentalis
• † Aeila
  • † Aeila decisa
• † Aelurodon
  • † Aelurodon asthenostylus
  • † Aelurodon taxoides

• 

  Life restoration of the Miocene camel Aepycamelus , or the long-necked camel. Heinrich Harder (1920).

  † Aepycamelus
  • † Aepycamelus alexandrae
• Aequipecten
  • † Aequipecten andersoni
• Aesopus
  • † Aesopus chrysalloides
• Aethia
  • † Aethia barnesi – type locality for species
  • † Aethia rossmoori – type locality for species
• † Aethomylos
  • † Aethomylos simplicidens
• Agaronia
  • † Agaronia mathewsoni – or unidentified comparable form
  • † Agaronia mathewsonii – or unidentified comparable form
• † Agasoma
  • † Agasoma acuminatum
  • † Agasoma gravida
  • † Agasoma gravidum
  • † Agasoma kerrianum
  • † Agasoma sinuata
• Agelaius
  • † Agelaius phoeniceuus

• 

  Fossilized mandible of the Miocene-Pleistocene bear Agriotherium

  † Agriotherium
• † Ailanthus
  • † Ailanthus lesquereuxi
• Akera
  • † Akera maga
• Alaba
  • † Alaba catalinensis
  • † Alaba jeannettae
• Alabina
  • † Alabina io – or unidentified comparable form
  • † Alabina tenuisculpta
• † Albicetus
  • † Albicetus oxymycterus – type locality for species
• † Albireo
  • † Albireo savagei – type locality for species
• Alca
• † Alcodes
  • † Alcodes ulnulus – type locality for species
• Aleochara
• Aletes
  • † Aletes squamigerus

• 

  Restorative model of the Miocene deer relative Aletomeryx

  † Aletomeryx
  • † Aletomeryx occidentalis – type locality for species
• † Alforjas
• Aligena
  • † Aligena cerritensis
• † Alilepus
  • † Alilepus hibbardi
• † Alisea – type locality for genus
  • † Alisea grandis – type locality for species
• † Allodelphis – type locality for genus
  • † Allodelphis pratti – type locality for species
  • † Allodelphis woodburnei – type locality for species

• 

  Fossilized skeleton of the Miocene seal Allodesmus

  † Allodesmus
  • † Allodesmus gracilis – type locality for species
  • † Allodesmus kelloggi – type locality for species
  • † Allodesmus kernensis
• † Alluvisorex
  • † Alluvisorex chasseae – type locality for species
• Alnus
  • † Alnus corrallina
  • † Alnus operia
• † Alopecocyon – type locality for genus
  • † Alopecocyon leardi – type locality for species
• Alopias
  • † Alopias exigua – or unidentified comparable form
  • † Alopias latidens

  • 

    Caught Alopias vulpinus , or common thresher

    † Alopias vulpinus – or unidentified comparable form
• Alvania
  • † Alvania acutelirata
  • † Alvania compacta
  • † Alvania iliuliukensis – or unidentified related form
• † Alveojunctus
  • † Alveojunctus bowni – type locality for species
• Amaea
• Amara
  • † Amara insignis
• † Amaurellina
  • † Amaurellina caleocia
  • † Amaurellina martinezensis
  • † Amaurellina moragai
• Amauropsis
  • † Amauropsis alveata

• 

  Flowers and foliage of Amelanchier , or shadbush

  Amelanchier
• Amiantis
  • † Amiantis – type locality for species informal
  • † Amiantis callosa
  • † Amiantis diabloensis
  • † Amiantis mathewsoni
• Ammobaculites
  • † Ammobaculites cubensis
  • † Ammobaculites strathearnensis – type locality for species
• Ammospermophilus
  • † Ammospermophilus fossilis
• † Amorpha
  • † Amorpha condonii
  • † Amorpha oklahomensis
• † Amphicyon
  • † Amphicyon ingens

• 

  Fossilized skull of the Miocene saber-toothed cat Amphimachairodus

  † Amphimachairodus
  • † Amphimachairodus coloradensis – or unidentified comparable form
• Amphimorphina
  • † Amphimorphina ignota
• Amphissa
  • † Amphissa columbiana
  • † Amphissa reticulata
  • † Amphissa ventricosa
  • † Amphissa versicolor
• Amphiura
  • † Amphiura santaecrucis
• † Amphora
  • † Amphora ovalis
  • † Amphora perpusilla
• † Ampullina
  • † Ampullina schencki – or unidentified comparable form
• Amusium
  • † Amusium lompocensis
• † Amussiopecten
  • † Amussiopecten vanvlecki
• † Amynodon
  • † Amynodon advenus – or unidentified comparable form
  • † Amynodon reedi
• † Amynodontopsis
  • † Amynodontopsis bodei – type locality for species
• Anachis
  • † Anachis coronata

• 

  Collection of Anadara marine ark clams

  Anadara
  • † Anadara devincta
  • † Anadara obispoana
  • † Anadara osmonti
  • † Anadara perlabiata
  • † Anadara reinharti
  • † Anadara rivulata
  • † Anadara santana – type locality for species
  • † Anadara submontereyana
  • † Anadara trilineata
• Anaphothrips
  • † Anaphothrips vitreus – type locality for species
• Anas
  • † Anas americana
  • † Anas carolinense
  • † Anas clypeata
  • † Anas platyrhynchos
• † Anchitheriomys – or unidentified comparable form

• 

  Fossilized limb bones, and teeth of the Miocene three-toed horse Anchitherium (left)

  † Anchitherium
  • † Anchitherium clarencei
• † Anchura
  • † Anchura baptos
• Ancilla
  • † Ancilla fishii
  • † Ancilla gabbi – tentative report
• † Angelosquilla
  • † Angelosquilla altamirensis
• Angulogerina
• Angulus
  • † Angulus buttoni
  • † Angulus castacana
  • † Angulus joaquinensis
  • † Angulus jollaensis – or unidentified comparable form
  • † Angulus longa
  • † Angulus lutea – or unidentified comparable form
• Anniella
• Anodontia
  • † Anodontia edentuloides
  • † Anodontia inflata
• † Anomalina
  • † Anomalina californiensis
  • † Anomalina garzaensis
• Anomalinoides
  • † Anomalinoides globosa – or unidentified comparable form
• Anomia
  • † Anomia mcgoniglensis
  • † Anomia peruviana
  • † Anomia vaquerosensis – type locality for species
• † Ansen
  • † Ansen albifrons
• Anser
  • † Anser albifrons
• † Antecalomys
  • † Antecalomys valensis
  • † Antecalomys vasquezi
• † Antiacodon
  • † Antiacodon venustus
• Antigona
  • † Antigona undosa
• †Antilla
  • † Antilla batequensis

• 

  A living Antilocapra , or pronghorn

  Antilocapra
• Antrozous
  • † Antrozous pallidus
• † Anzanycteris
  • † Anzanycteris anzensis
• † Apataelurus – or unidentified comparable form
• † Apatemys
  • † Apatemys bellus
  • † Apatemys downsi – type locality for species
  • † Apatemys uintensis
• Aphelocoma
  • † Aphelocoma californica
• † Aphelophlebodes – type locality for genus
  • † Aphelophlebodes stocki – type locality for species

• 

  Reconstructive illustration of the skeleton of the Miocene-Pleistocene hornless rhinoceros Aphelops

  † Aphelops
  • † Aphelops megalodus
• Apiotoma
  • † Apiotoma californiana
• Aplodontia
  • † Aplodontia rufa
• Aprionodon
• Apsena
  • † Apsena laticornis – type locality for species
  • † Apsena pubescens
  • † Apsena rufipes
• Aquila

  • 

    A living Aquila chrysaetos , or golden eagle

    Aquila chrysaetos
• † Araeosteus
  • † Araeosteus rothi
• Arbutus
  • † Arbutus matthesii
• Arca
  • † Arca hornii – type locality for species
  • † Arca montereyana
  • † Arca pacifica – or unidentified comparable form
  • † Arca santaclarana
  • † Arca sisquocensis
  • † Arca terminumbonis
• † Arceuthobium

• 

  Fossilized skull of the Oligocene bone-crushing dog Archaeocyon

  † Archaeocyon
  • † Archaeocyon pavidus
• † Archaeohippus
  • † Archaeohippus mourningi
  • † Archaeohippus ultimus
• † Archaeolagus
  • † Archaeolagus acaricolus – type locality for species
• † Archaeolithothamnion
  • † Archaeolithothamnion keenanii – or unidentified related form
• Archaeolithothamnium
  • † Archaeolithothamnium keenani – type locality for species
• † Archaeoparadoxia
  • † Archaeoparadoxia weltoni – type locality for species
• † Archibuteo
  • † Archibuteo ferrugineus

• 

  A living Architectonica staircase shell sea snail

  Architectonica
  • † Architectonica cognata
  • † Architectonica llajasensis – type locality for species
  • † Architectonica nobilis
  • † Architectonica tuberculata
  • † Architectonica ullreyana – or unidentified comparable form
• † Archoheia – tentative report
• Archoplites
  • † Archoplites interruptus
• Arcinella
  • † Arcinella californica
• Arctica – tentative report
  • † Arctica weaveri
• Arctocephalus

• 

  Restoration of an Arctodus , or short-faced bear, with a human to scale

  † Arctodus
  • † Arctodus simus – type locality for species
• † Arctostaphylos
• Ardea
  • † Ardea herodias
• Arenaria
  • † Arenaria melanocephala
• Arene
  • † Arene mcleani – type locality for species
• † Argenna
  • † Argenna fossilis – type locality for species
• Argobuccinum
  • † Argobuccinum katherineae – type locality for species
  • † Argobuccinum oregonensis
• Argopecten
  • † Argopecten deserti
  • † Argopecten gibbus
  • † Argopecten mendenhalli
  • † Argopecten purpuratus
  • † Argopecten ventricosus
• † Argyrocetus – type locality for genus
  • † Argyrocetus bakersfieldensis – type locality for species
  • † Argyrocetus joaquinensis – type locality for species

• 

  A modern Argyropelecus silver hatchetfish

  Argyropelecus
  • † Argyropelecus bullocki – type locality for species
  • † Argyropelecus bullockii
• † Arnoldina – type locality for genus
  • † Arnoldina iniistia – type locality for species
• Arossia
• † Artocarpus
  • † Artocarpus lessigiana
• † Asclepiadites
  • † Asclepiadites laterita – type locality for species

• 

  A living Asio otus , or long-eared owl

  Asio
  • † Asio priscus
  • † Asio wilsonianus
• Asterigerina
  • † Asterigerina crassaformis
• Astraea
  • † Astraea biangulata – or unidentified comparable form
  • † Astraea gibbosa
  • † Astraea gradata
  • † Astraea morani – type locality for species
  • † Astraea undosa
• Astrangia
  • † Astrangia grandis – type locality for species
  • † Astrangia insignifica – type locality for species
• † Astrocoenia – tentative report
• † Astrocoenta
• † Astrodapsis
  • † Astrodapsis arnoldi – or unidentified comparable form
  • † Astrodapsis cuyamanus
  • † Astrodapsis fernandoensis
  • † Astrodapsis merriami – tentative report
  • † Astrodapsis spatiosus
• † Astrodaspis
  • † Astrodaspis arnoldi
• Astropecten
• Astyris
  • † Astyris gausapata
• Athene
  • † Athene cunicularia
• Athleta
  • † Athleta roddai – type locality for species

• 

  Fossilized skull of the Miocene dolphin Atocetus

  † Atocetus
  • † Atocetus nasalis – type locality for species
• † Atopotarus – type locality for genus
  • † Atopotarus courseni – type locality for species
• Atrina
  • † Atrina alamedensis
• † Aturia
  • † Aturia angustata
  • † Aturia dickersoni – type locality for species
  • † Aturia kerniana – type locality for species
  • † Aturia myrlae – type locality for species
• † Aturoidea
  • † Aturoidea mathewsonii – type locality for species
• Atys

• 

  Life restoration of the Miocene sperm whale Aulophyseter

  † Aulophyseter – type locality for genus
  • † Aulophyseter morricei – type locality for species
• Austrotrophon
• † Auxides
  • † Auxides sanctaemonicae
• † Avipeda
• Aythya
  • † Aythya affinis
  • † Aythya valisineria
• † Azalois – type locality for genus
  • † Azalois angelensis – type locality for species

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Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• Baiomys
  • † Baiomys mowi
• Balaenoptera
  • † Balaenoptera bertae – type locality for species
  • † Balaenoptera cortesi
  • † Balaenoptera davidsonii – type locality for species
  • † Balaenoptera physalus
  • † Balaenoptera ryani

• 

  Mounted fossilized skeleton of the Pliocene whale Balaenula

  † Balaenula
• Balanophyllia
  • † Balanophyllia elegans
  • † Balanophyllia variabilis – type locality for species
• Balanus
  • † Balanus crenatus
  • † Balanus gregarius
  • † Balanus nubilus – or unidentified comparable form
  • † Balanus rostratus
• Balcis
  • † Balcis micans
  • † Balcis monicensis
  • † Balcis oldroydi
  • † Balcis rutila
  • † Balcis thersites
• Bankia
  • † Bankia setacea – or unidentified comparable form
• Barbarofusus
  • † Barbarofusus barbarensis
• Barbatia
  • † Barbatia cliffensis
  • † Barbatia landesi – or unidentified related form
  • † Barbatia strongi – type locality for species
  • † Barbatia suzzalloi – or unidentified comparable form

• 

  Fossilized skull of the Miocene-Pliocene false saber-toothed cat Barbourofelis

  † Barbourofelis
  • † Barbourofelis loveorum
  • † Barbourofelis whitfordi
• Barleeia
  • † Barleeia marmorea
• Barnea
  • † Barnea costata
• † Basirepomys
  • † Basirepomys pliocenicus – type locality for species
• Bassariscus
  • † Bassariscus antiquus
  • † Bassariscus astutus – or unidentified comparable form
  • † Bassariscus casei
  • † Bassariscus raptor
• † Bathylagus – type locality for genus
  • † Bathylagus quiescens – type locality for species
  • † Bathylagus quisquilia – type locality for species
• † Bathysiphon
  • † Bathysiphon eocenica
  • † Bathysiphon sanctaecrucis
• Bathytoma
  • † Bathytoma pacifica
• † Batodonoides
  • † Batodonoides powayensis
  • † Batodonoides walshi – type locality for species

• 

  A living Bembidion ground beetle

  Bembidion
  • † Bembidion davidae – type locality for species
  • † Bembidion everestae – type locality for species
• † Benoistia
  • † Benoistia cantonensis
• † Bensonomys
  • † Bensonomys arizonae
  • † Bensonomys gidleyi
  • † Bensonomys meadensis
• Beringraja
  • † Beringraja binoculata – or unidentified comparable form
• † Bestiopeda
• Betula
  • † Betula ashleyii
• † Bifarina
  • † Bifarina eleganta
• Bison
  • † Bison antiquus

  • 

    Mounted fossilized skeleton of the Pleistocene Bison latifrons , or long-horned bison

    † Bison latifrons
• Bittium
  • † Bittium alternatum – or unidentified comparable form
  • † Bittium asperum
  • † Bittium casmaliense
  • † Bittium catalinense
  • † Bittium dumblei
  • † Bittium eschrichti
  • † Bittium eschrichtii
  • † Bittium inerfossa
  • † Bittium interfossa
  • † Bittium latum
  • † Bittium ornatissimum
  • † Bittium rugatum
  • † Bittium topangensis
• Bivetopsia
  • † Bivetopsia bullata
• † Boavus
  • † Boavus affinis – type locality for species
• Boetica
  • † Boetica hertleini

• 

  Life restoration of the Miocene grenadier fish Bolbocara (bottom)

  † Bolbocara
  • † Bolbocara gyrinus
• Bolinichthys
• Bolivina
  • † Bolivina gracilis
• Bonasa
  • † Bonasa umbellus
• † Bonellitia
  • † Bonellitia paucivaricata
  • † Bonellitia stantoni
• Bornia
  • † Bornia retifera

• 

  Restoration of two of the Miocene-Pliocene bone-crushing dog genus Borophagus preying on a camel. Jay Matternes (1964).

  † Borophagus
  • † Borophagus diversidens
  • † Borophagus littoralis – type locality for species
  • † Borophagus parvus
  • † Borophagus secundus
• † Borophryne
  • † Borophryne apogon
• † Bouromeryx
  • † Bouromeryx americanus
  • † Bouromeryx submilleri – or unidentified comparable form
• Brachidontes
  • † Brachidontes cowlitzensis
  • † Brachidontes dichotomus
  • † Brachidontes lawsoni – or unidentified comparable form
  • † Brachidontes ornatus
• Brachiodontes
  • † Brachiodontes lawsoni
• † Brachisphingus
  • † Brachisphingus gabbi
• † Brachyallodesmus – type locality for genus
  • † Brachyallodesmus packardi

• 

  Restorative portrait of the Miocene oreodont mammal Brachycrus

  † Brachycrus
  • † Brachycrus buwaldi
  • † Brachycrus laticeps
• † Brachyerix
  • † Brachyerix incertis
• † Brachypsalis
  • † Brachypsalis obliquidens
  • † Brachypsalis pachycephalus – or unidentified comparable form
• Brachyramphus
  • † Brachyramphus dunkeli – type locality for species
  • † Brachyramphus pliocenum – type locality for species
• † Brachysphingus
  • † Brachysphingus liratus
  • † Brachysphingus mammilatus – type locality for species
  • † Brachysphingus sinuatus

• 

  A living Branta bernicla , or black brant

  Branta
  • † Branta canadensis
  • † Branta nigricans – tentative report
  • † Branta woolfendeni – or unidentified comparable form
• † Bretzia
• † Brevirostrodelphis – Type locality for genus
  • † Brevirostrodelphis dividum - Type locality for species (synonym Delphinodon dividum) ^[1]
• † Brochopleurus – tentative report
• † Bruclarkia
  • † Bruclarkia barkerianum
  • † Bruclarkia barkerium
  • † Bruclarkia columbiana
  • † Bruclarkia gravida
  • † Bruclarkia oregonensis – or unidentified comparable form
  • † Bruclarkia santacruzana
  • † Bruclarkia seattlensis
• Bubo
  • † Bubo sinclairi – type locality for species

  • 

    A living Bubo virginianus , or great horned owl

    † Bubo virginianus
• Buccinum
  • † Buccinum strigillatum
• Bucephala
  • † Bucephala albeola
• † Bucida
  • † Bucida eocenica
• Bufo
• † Bulbiceps
  • † Bulbiceps raninus
• † Bulbifusus
  • † Bulbifusus californicus – type locality for species
• Bulimina
  • † Bulimina chirana
  • † Bulimina debilis
  • † Bulimina jacksonensis
  • † Bulimina ovata
  • † Bulimina ovula
  • † Bulimina rinconensis
  • † Bulimina socialis – or unidentified comparable form
• Buliminella
  • † Buliminella curta
  • † Buliminella subfusiformis
• Bulla
  • † Bulla clarki

  • 

    Shells in multiple views of Bulla gouldiana , or the California bubble sea snail

    † Bulla gouldiana
  • † Bulla punctulata – or unidentified comparable form
  • † Bulla punctulatus
  • † Bulla striata
• Bullia
  • † Bullia clarki
• † Bullinula
  • † Bullinula subglobosa
• † Bumelia
  • † Bumelia florissanti
• Bursa
  • † Bursa califomica
• Buteo
  • † Buteo borealis

  • 

    A living Buteo jamaicensis , or red-tailed hawk

    † Buteo jamaicensis
  • † Buteo swainsoni

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Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• Cadulus
  • † Cadulus fusiformis
• Caecum
  • † Caecum californicum
• Calicantharus
  • † Calicantharus dalli
  • † Calicantharus fortis
  • † Calicantharus humerosus
  • † Calicantharus portolaensis – or unidentified comparable form
• † Calicovatellus – type locality for genus
  • † Calicovatellus petrodytes – type locality for species
• Calidris
  • † Calidris alba
• Californiconus
  • † Californiconus californicus
• † Calilampas
  • † Calilampas californiensis
• † Calipepla
  • † Calipepla californica
• Calliostoma
  • † Calliostoma annulata

  • 

    A living Calliostoma annulatum , or purple-ring top sea snail

    † Calliostoma annulatum
  • † Calliostoma augustinensis
  • † Calliostoma canaliculatum
  • † Calliostoma costatum
  • † Calliostoma crassicostatus
  • † Calliostoma doliarium
  • † Calliostoma doliarum – tentative report
  • † Calliostoma gemmulatum
  • † Calliostoma ligatum
  • † Calliostoma nuttalli
  • † Calliostoma supragranosum
  • † Calliostoma tricolor
• Callista
  • † Callista domenginica
  • † Callista vokesi
• Callistochiton
  • † Callistochiton palmulatus
• Callithaca
  • † Callithaca tenerrima
• Callorhinus
  • † Callorhinus gilmorei – type locality for species

  • 

    A living Callorhinus ursinus , or northern fur seal

    † Callorhinus ursinus
• Calopsectra
• † Calorebama
  • † Calorebama inornata
• † Calorhadia – tentative report
• Calosoma
  • † Calosoma semilaeve
• † Calycites
  • † Calycites mikanoides

• 

  Three modern shells of Calyptraea , or Chinese hat snails

  Calyptraea
  • † Calyptraea calabasasensis
  • † Calyptraea contorta
  • † Calyptraea costellata
  • † Calyptraea dalliana
  • † Calyptraea diegoana
  • † Calyptraea excentrica
  • † Calyptraea fastigiata
  • † Calyptraea filosa
  • † Calyptraea inornata
  • † Calyptraea mamillaris
  • † Calyptraea mammilaris – or unidentified comparable form
• † Calyptranthes
  • † Calyptranthes myrtifolia – type locality for species

• 

  Life restoration of the Pliocene-Holocene camel Camelops

  † Camelops
  • † Camelops hesternus
  • † Camelops minidokae
• † Cammackacetus – Type locality for genus
  • † Cammackacetus hazenorum - Type locality for species ^[1]
• Campanile
  • † Campanile dilloni
• Camponotus – type locality for genus
  • † Camponotus festinatus – type locality for species
• † Canarium
  • † Canarium californicum
• Cancellaria
  • † Cancellaria arnoldi
  • † Cancellaria dalliana
  • † Cancellaria fernandoensis
  • † Cancellaria obesa
  • † Cancellaria planospira
  • † Cancellaria posunculensis
  • † Cancellaria subtuberosa
  • † Cancellaria tritonidea
• Cancer
• Cancris
  • † Cancris mexicanus
• Canis

  • 

    Modern mounted skeleton of Canis lupus , the grey wolf, to scale with a fossilized skeleton of the Pleistocene wolf Canis dirus , or dire wolf

    † Canis dirus
  • † Canis edwardii
  • † Canis latrans
  • † Canis lepophagus
  • † Canis lupus
  • † Canis rufus
• Canthon
  • † Canthon praticola
  • † Canthon simplex
• † Cantius
  • † Cantius actius
• † Capricamelus – type locality for genus
  • † Capricamelus gettyi – type locality for species
• † Capromeryx

  • 

    Fossilized skeleton of the Pleistocene dwarf pronghorn Capromeryx

    † Capromeryx minor
• Caracara
  • † Caracara cheriway
  • † Caracara plancus
• Carcharhinus
• Carcharias
  • † Carcharias clavatus
• † Carcharinus
• Carcharodon
  • † Carcharodon arnoldi
  • † Carcharodon carcharias
  • † Carcharodon hastalis
  • † Carcharodon leviathan
  • † Carcharodon morricei
  • † Carcharodon sulcidens
  • † Carcharodon tembloris – type locality for species
• Cardium
  • †Cardium brewerii, alternative of Acanthocardia brewerii (see List of the Cenozoic life of California § A)
• Carpelimus
• † Carpites
  • † Carpites egregia
• † Carpocyon
  • † Carpocyon robustus

• 

  A living Carya , or hickory tree

  Carya
  • † Carya bendirei
  • † Carya sessilis
• Caryophyllia
  • † Caryophyllia arnoldi
  • † Caryophyllia californica – type locality for species
  • † Caryophyllia capayensis – type locality for species
  • † Caryophyllia pedroensis – type locality for species
• Cassidulina
  • † Cassidulina crassipunctata
  • † Cassidulina diversa – or unidentified comparable form
  • † Cassidulina globosa
• Castanea
  • † Castanea spokanensis
• Castanopsis
  • † Castanopsis longipetiolatum
• Castor
  • † Castor californicus – or unidentified comparable form
• † Catharista
  • † Catharista shastensis – type locality for species
• Cathartes

  • 

    A living Cathartes aura , or turkey vulture

    † Cathartes aura
• Catoptrophorus
  • † Catoptrophorus semipalmatus
• † Catoptrophus
  • † Catoptrophus inornatus
• † Catostomus
  • † Catostomus occidentalis
• Ceanothus
  • † Ceanothus tuolumnensis
  • † Ceanothus turlockensis
• Cedrela
  • † Cedrela eolancifolia – type locality for species
  • † Cedrela trainii
• † Celastrus
  • † Celastrus preangulata – type locality for species
• Celtis
  • † Celtis kansana
• † Centetodon
  • † Centetodon aztecus
  • † Centetodon bembicophagus – or unidentified comparable form
  • † Centetodon magnus – or unidentified comparable form
• Centrifuga
  • † Centrifuga leeana
• Cepphus

  • 

    A living Cepphus columba , or pigeon guillemot

    † Cepphus columba
  • † Cepphus olsoni – type locality for species
• Cercidiphyllum
  • † Cercidiphyllum elongatum
• † Cercocarpus
  • † Cercocarpus nevadensis
• Cerithidea
  • † Cerithidea californica
• Cerithiopsis
  • † Cerithiopsis antefilosa
  • † Cerithiopsis carpenteri
  • † Cerithiopsis columna – or unidentified comparable form
  • † Cerithiopsis cosmia
  • † Cerithiopsis halia – or unidentified related form
  • † Cerithiopsis paramoea
  • † Cerithiopsis pedroana
  • † Cerithiopsis rowelli
  • † Cerithiopsis stejnegeri – or unidentified comparable form
• Cerithium
  • † Cerithium incisum
  • † Cerithium topangensis
• † Cernictis
  • † Cernictis hesperus – type locality for species
• † Cernina
  • † Cernina hannibali
• † Cerorhinca
  • † Cerorhinca dubia – type locality for species
  • † Cerorhinca reai – type locality for species
• Cervus
  • † Cervus elaphus
• Cetorhinus
  • † Cetorhinus maximus

• 

  Life restoration of the Miocene-Pliocene whale Cetotherium

  † Cetotherium
  • † Cetotherium furlongi – type locality for species
• † Chaceia
  • † Chaceia fulcherae – type locality for species
• † Chaenophryne
  • † Chaenophryne melanorhabdus
• Chaetodipus
  • † Chaetodipus formosus – or unidentified comparable form
• † Chaetoptelea
  • † Chaetoptelea pseudofulva
• † Chalcidichthys – type locality for genus
  • † Chalcidichthys malacopterygius – type locality for species
• Chama
  • † Chama arcana
  • † Chama frondosa
  • † Chama grunski
• † Chamaecyparis
  • † Chamaecyparis cordillerae
• Charadrius
  • † Charadrius semipalmatus

• 

  Side profile of a Chauliodus , or viperfish

  Chauliodus – type locality for genus
  • † Chauliodus eximias
  • † Chauliodus eximius – type locality for species
• † Chedevillia
  • † Chedevillia saltonensis – type locality for species
  • † Chedevillia stewarti – type locality for species
• Chelonia
  • † Chelonia californiensis – type locality for species
• Chen
  • † Chen caerulescens

• 

  Life restoration of the Pleistocene-Holocene Chendytes , or Law's diving-goose

  † Chendytes – type locality for genus
  • † Chendytes lawi – type locality for species
• Chilostomella
  • † Chilostomella hadleyi
• † Chilostomelloides
  • † Chilostomelloides ovicula
  • † Chilostomelloides oviformis
• Chione
  • † Chione californiensis
  • † Chione cryptolineata – or unidentified comparable form
  • † Chione latilaminosa
  • † Chione lineolata – or unidentified comparable form
  • † Chione panzana
  • † Chione schencki
  • † Chione securis
  • † Chione undatella
• Chionista
  • † Chionista fluctifraga
• Chionopsis
  • † Chionopsis gnidia
  • † Chionopsis richthofeni
  • † Chionopsis temblorensis
• Chlamys
  • † Chlamys bartschi
  • † Chlamys branneri – or unidentified comparable form
  • † Chlamys corteziana – or unidentified comparable form

  • 

    A living Chlamys hastata , or spear scallop

    † Chlamys hastata
  • † Chlamys hertleini
  • † Chlamys mediacostatus – type locality for species
  • † Chlamys rubida
  • † Chlamys sespeensis
  • † Chlamys swifti
• Chlorostoma
  • † Chlorostoma gallina
• † Chorizanthe
• † Chrisodomus
• † Chrysobalanus
  • † Chrysobalanus eoicaco

• 

  A living Chrysocyon brachyurus , or maned wolf

  † Chrysocyon
  • † Chrysocyon nearcticus
• † Chrysodomus – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Chrysodomus martini
• † Chrysolepis
  • † Chrysolepis sonomensis
• † Chumashius
  • † Chumashius balchi – type locality for species
• Cibicides
  • † Cibicides cushmani
  • † Cibicides martinezensis
  • † Cibicides pseudoungerianus
• Cibicidoides
  • † Cibicidoides midwayensis – or unidentified comparable form
• Cicindela
  • † Cicindela haemorrhagica
  • † Cicindela oregona
• Cidaris
  • † Cidaris martinezensis

• 

  A living Cinnamomum , or cinnamon tree

  Cinnamomum
  • † Cinnamomum acrodromum
  • † Cinnamomum dilleri
• Cissus
  • † Cissus pyriformis
• † Citellus
  • † Citellus bensoni
• Citharichthys
  • † Citharichthys stigmaeus
• † Claibornites
  • † Claibornites diegoensis
  • † Claibornites muirensis
  • † Claibornites turneri

• 

  Shells in multiple orientations of Clathrodrillia sea snails

  Clathrodrillia
  • † Clathrodrillia coalingensis
• Clathurella
  • † Clathurella conradiana
• Clavilithes
  • † Clavilithes tabulatus
• Clavus
  • † Clavus hartleyensis – type locality for species
  • † Clavus hemphilli
  • † Clavus pallidus – or unidentified related form
  • † Clavus temblorensis
• Clementia
  • † Clementia brioniana
  • † Clementia conradiana
  • † Clementia pertenius
  • † Clementia pertenuis
• Clethrionomys
• Cletocamptus

• 

  Shell of a Clinocardium cockle

  Clinocardium
  • † Clinocardium meekianum
  • † Clinocardium nuttallii
• Cliona
• Clupea
  • † Clupea hadleyi – type locality for species
  • † Clupea tiejei – type locality for species
• Clypeaster
  • † Clypeaster bowersi
  • † Clypeaster carrizoensis – type locality for species
  • † Clypeaster deserti

• 

  A living Cnemidophorus , or whip-tail lizard

  Cnemidophorus
• † Coalingodea
  • † Coalingodea tuberculiformis
• Coccodentalium
  • † Coccodentalium emersoni – type locality for species
• † Cocconeis
  • † Cocconeis disculus
  • † Cocconeis placentula
• † Cochlespiropsis – tentative report
  • † Cochlespiropsis jenkinsi – type locality for species
• Cochliomyia – type locality for genus
  • † Cochliomyia macellaria – type locality for species

• 

  Shell of a Codakia marine bivalve

  Codakia
  • † Codakia colpoica
  • † Codakia distinguenda
• Colaptes
  • † Colaptes cafer
• † Colodon
• Coluber
  • † Coluber constrictor
• Colubraria
• Columba – or unidentified comparable form
  • † Columba fasciata
• Columbarium
• Colymbus
  • † Colymbus nigricollis
  • † Colymbus parvus
  • † Colymbus subparvus – type locality for species
• Compsomyax
  • † Compsomyax subdiaphana

• 

  Shell in two views of a Conasprelloides cone sea snail

  † Conasprelloides
  • † Conasprelloides planiliratus
• Concavus
  • † Concavus concavus
• † Conchocele
  • † Conchocele bisecta
• Coniontis
  • † Coniontis abdominalis – type locality for species
  • † Coniontis elliptica
  • † Coniontis lamentabilis
  • † Coniontis puncticollis
  • † Coniontis remnans – type locality for species
  • † Coniontis robusta
  • † Coniontis rugosa
• Conus
  • † Conus caleocius
  • † Conus fergusoni
  • † Conus hornii
  • † Conus owenana
  • † Conus owenianus
  • † Conus redmondii – or unidentified comparable form

  • 

    Shell of a Conus regularis , or regular cone sea snail

    † Conus regularis
  • † Conus remondii
  • † Conus scalaris
• Cooperella
  • † Cooperella subdiaphana
• † Copemys
  • † Copemys barstowensis – type locality for species
  • † Copemys esmeraldensis
  • † Copemys longidens – type locality for species
  • † Copemys pagei
  • † Copemys russelli
  • † Copemys tenuis – type locality for species
• † Cophocara
  • † Cophocara stantoni
• † Cophocetus – tentative report

• 

  A living Copris scarab

  Copris
  • † Copris pristinus – type locality for species
• Coragyps
• Coralliophaga
• Corbicula
  • † Corbicula dumblei
• Corbula
  • † Corbula diaboli – type locality for species
  • † Corbula dickersoni
  • † Corbula dilatata
  • † Corbula fragilis
  • † Corbula hornii – or unidentified comparable form
  • † Corbula parilis
  • † Corbula tomulata – or unidentified comparable form

• 

  Fossilized skeleton preserved in situ (upper left, 2) of the Miocene-Pliocene horse Cormohipparion

  † Cormohipparion
  • † Cormohipparion occidentale – or unidentified comparable form
• Cornus
  • † Cornus kelloggii
  • † Cornus ovalis – or unidentified comparable form
• † Coronadus – type locality for genus
  • † Coronadus agilis – type locality for species
• Coronula – tentative report
• Corvus
  • † Corvus brachyrhynchos
  • † Corvus corax
• † Cosomys
  • † Cosomys primus – type locality for species
• † Cosoryx
  • † Cosoryx cerroensis – or unidentified comparable form
• Costacallista
  • † Costacallista hornii – or unidentified comparable form

• 

  Restoration of the Miocene palaeomerycid Cranioceras , a relative of modern deer, with anachronistic human to scale

  † Cranioceras
  • † Cranioceras teres
  • † Cranioceras unicornis – or unidentified comparable form
• † Craseops
  • † Craseops sylvestris – type locality for species
• Crassadoma
  • † Crassadoma gigantea
• Crassatella
  • † Crassatella – type locality for species A informal
  • † Crassatella claytonensis
  • † Crassatella compacta
  • † Crassatella granti
  • † Crassatella meganosensis – type locality for species
  • † Crassatella unioides
  • † Crassatella uvasana
  • † Crassatella washingtonensis
• Crassinella
  • † Crassinella nuculiformis
  • † Crassinella pacifica

• 

  Shell of a Crassispira sea snail

  Crassispira
  • † Crassispira montereyensis – or unidentified related form
  • † Crassispira zizyphus
• Crassostrea
  • † Crassostrea ashleyi
  • † Crassostrea titan
  • † Crassostrea vaquerosensis
• Crataegus
  • † Crataegus pacifica
• Crawfordina
  • † Crawfordina weaveri
• † Crenaturricula
  • † Crenaturricula crenatospira
• Crepidula
  • † Crepidula adunca
  • † Crepidula coei – or unidentified comparable form
  • † Crepidula diminutiva – type locality for species
  • † Crepidula excavata
  • † Crepidula lessoni
  • † Crepidula nummaria
  • † Crepidula nunimaria

  • 

    Shell in multiple views of a Crepidula onyx , or onyx slipper sea snail

    † Crepidula onyx
  • † Crepidula pileum – or unidentified comparable form
  • † Crepidula praerupta
  • † Crepidula princeps
  • † Crepidula ungana – or unidentified comparable form
• Crepipatella
  • † Crepipatella lingulata
• † Crommium
  • † Crommium andersoni
  • † Crommium pinyonensis
• Crossata
  • † Crossata ventricosa
• Crotalus

  • 

    A living Crotalus viridis , or prairie rattlesnake

    † Crotalus viridis
• Crucibulum
  • † Crucibulum spinosum
• † Crypholestes
  • † Crypholestes vaughni
• † Cryptocarya
  • † Cryptocarya praesamarensis
• † Cryptoconus
  • † Cryptoconus cooperi
• Cryptomya
  • † Cryptomya californica
• Cryptonatica
  • † Cryptonatica affinis
  • † Cryptonatica aleutica

• 

  A living Cryptotermes , or drywood termite

  Cryptotermes
  • † Cryptotermes ryshkoffi – type locality for species
• Cryptotis
• Ctenocardia
  • † Ctenocardia biangulata
• Cucullaea
  • † Cucullaea mathewsoni
  • † Cucullaea mathewsonii
• Culicoides
  • † Culicoides carri – type locality for species
  • † Culicoides fossilis – type locality for species
  • † Culicoides laurae – type locality for species
  • † Culicoides megacanthus – type locality for species
  • † Culicoides mioceneus – type locality for species
• Cumingia
  • † Cumingia lamellosa
• † Cunnolites – tentative report
• † Cupania
  • † Cupania oregona
• † Cupidinimus
  • † Cupidinimus avawatzensis
  • † Cupidinimus bidahochiensis – or unidentified comparable form
  • † Cupidinimus boronensis – type locality for species
  • † Cupidinimus halli
  • † Cupidinimus lindsayi – type locality for species
  • † Cupidinimus tertius

• 

  A living Cupressus , or cypress tree

  † Cupressus
  • † Cupressus goveniana
  • † Cupressus mokelumnensis
• Cuspidaria
  • † Cuspidaria hannibali
• † Cuyamacamelus
  • † Cuyamacamelus jamesi
• † Cuyamalagus
  • † Cuyamalagus dawsoni – type locality for species
• Cyanocitta
  • † Cyanocitta stelleri
• Cybocephalus
  • † Cybocephalus californicus – or unidentified comparable form
• Cyclammina
  • † Cyclammina clarki
  • † Cyclammina incisa – or unidentified comparable form
• Cyclinella
• Cyclocardia
  • † Cyclocardia californica
  • † Cyclocardia montereyana – type locality for species
  • † Cyclocardia ventricosa
• † Cyclocorystes
  • † Cyclocorystes aldersoni – type locality for species
• † Cyclosthone – or unidentified comparable form

• 

  Illustration of a living Cyclothone bristlemouth

  Cyclothone
• Cygnus
  • † Cygnus columbianus
• Cylichna
  • † Cylichna attonsa
• Cylichnella
  • † Cylichnella attonsa
  • † Cylichnella culcitella
• Cymatium
  • † Cymatium elsemerense
  • † Cymatium janetae – type locality for species
• Cymatogaster
  • † Cymatogaster aggregata
• † Cymbophora
• † Cynarctoides
  • † Cynarctoides acridens
  • † Cynarctoides whistleri – type locality for species
• † Cynarctus
  • † Cynarctus galushai – type locality for species

• 

  Fossilized cranium of the Miocene bear-dog Cynelos

  † Cynelos
  • † Cynelos malasi – type locality for species
  • † Cynelos sinapius – or unidentified comparable form
• † Cynorca
  • † Cynorca occidentale
• Cynoscion
  • † Cynoscion eprepes
• Cyperus
• Cypraea
• Cyrena
  • † Cyrena dumblei
  • † Cyrena studleyi – or unidentified comparable form

• 

  Illustration of a living Cyrtonyx quail

  Cyrtonyx
  • † Cyrtonyx tedfordi – type locality for species
• Cystiscus
  • † Cystiscus subtrigona
• Cythara
  • † Cythara cetolaca
  • † Cythara hecetae
  • † Cythara interlirata
• Cytherea
  • † Cytherea mathewsoni

D

Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• † Dalbergia
  • † Dalbergia rubra – type locality for species
• Dallocardia
  • † Dallocardia quadragenarium
• Damalichthys
  • † Damalichthys vacca
• † Daphoenodon – or unidentified comparable form

• 

  Mounted fossilized skeleton of the Eocene-Miocene bear-dog Daphoenus

  † Daphoenus
  • † Daphoenus ruber – type locality for species
• † Darbyella
• Dardanus
  • † Dardanus arrosor
• † Dasceles – type locality for genus
  • † Dasceles dassurus – type locality for species
• Dasyatis
  • † Dasyatis dipterus
• Dasyhelea
  • † Dasyhelea antiqua
  • † Dasyhelea browneae – type locality for species
  • † Dasyhelea dara – type locality for species
  • † Dasyhelea judithae – type locality for species
  • † Dasyhelea kanakoffi – type locality for species
  • † Dasyhelea stenoceras – type locality for species

• 

  A school of living Decapterus , or mackerel scads

  † Decapterus
  • † Decapterus hopkinsi
• Delectopecten
  • † Delectopecten lillisi
  • † Delectopecten peckhami
• † Delphinavus – type locality for genus
  • † Delphinavus newhalli – type locality for species
• Deltochilum – tentative report
• Deltocyathus
  • † Deltocyathus whitei – type locality for species
• Dendostrea
  • † Dendostrea vespertina
• Dendragapus
  • † Dendragapus fuliginosus

  • 

    A living Dendragapus obscurus , or dusky grouse

    † Dendragapus obscurus
• Dendraster
  • † Dendraster coalingaensis – or unidentified comparable form
  • † Dendraster excentricus
  • † Dendraster gibbsi
• Dendrophyllia
  • † Dendrophyllia californiana – type locality for species
  • † Dendrophyllia oldroydi – tentative report
  • † Dendrophyllia tejonensis – type locality for species

• 

  A living Dendryphantes jumping spider

  Dendryphantes
• Dentalina
  • † Dentalina approximata
  • † Dentalina consobrina
  • † Dentalina cooperensis
  • † Dentalina jarvisi
  • † Dentalina legumen – or unidentified comparable form
  • † Dentalina nasuta
  • † Dentalina pauperata
  • † Dentalina quadrulata
  • † Dentalina spinosa
• Dentalium
  • † Dentalium conradi
  • † Dentalium cooperi
  • † Dentalium laneensis
  • † Dentalium mcganna – type locality for species ^[2]
  • † Dentalium neohexagonum
  • † Dentalium radiolineata – or unidentified comparable form
  • † Dentalium rectius
  • † Dentalium stentor
  • † Dentalium stramineum

• 

  A living Dermochelys , or leatherback sea turtle

  Dermochelys – or unidentified related form
• Deroceras
• † Derrhias – type locality for genus
  • † Derrhias enantius – type locality for species
• † Desmathyus – or unidentified related form
• † Desmatippus
  • † Desmatippus avus
• † Desmatochoerus
  • † Desmatochoerus hesperus
• † Desmocyon
  • † Desmocyon thomsoni
• † Desmodium
  • † Desmodium indentum – type locality for species

• 

  Life restoration of the Oligocene-Miocene herbivorous marine mammal Desmostylus

  † Desmostylus
  • † Desmostylus hesperus – type locality for species
• Diacria
  • † Diacria trispinosa
• Diaphana
  • † Diaphana brunnea
• † Diceratherium
• Dichocoenia
  • † Dichocoenia merriami
• † Dinohippus
  • † Dinohippus interpolatus
  • † Dinohippus leardi
  • † Dinohippus leidyanus
  • † Dinohippus mexicanus
• † Dinohyus
  • † Dinohyus hollandi
• Diodora
  • † Diodora arnoldi
  • † Diodora aspera
  • † Diodora inaequalis
• † Diomeda
• Diomedea
  • † Diomedea milleri – type locality for species
• † Diomedia
  • † Diomedia albatrus
  • † Diomedia nigripes
• † Dioplotherium
  • † Dioplotherium allisoni

• 

  A living member of Diospyros , the tree genus including ebonies and persimmons

  † Diospyros
  • † Diospyros oregoniana
  • † Diospyros retinervis
• Diplodonta
  • † Diplodonta buwaldana
  • † Diplodonta cretacea
  • † Diplodonta orbella
  • † Diplodonta pariiis
  • † Diplodonta parilis
  • † Diplodonta sericata
• Diploria
  • † Diploria bowersi – type locality for species
• Dipodomys
  • † Dipodomys agilis – or unidentified comparable form
  • † Dipodomys compactus
  • † Dipodomys deserti – or unidentified comparable form
  • † Dipodomys heermanni – or unidentified comparable form
  • † Dipodomys hibbardi

  • 

    A living Dipodomys merriami , or Merriam's kangaroo rat

    † Dipodomys merriami
  • † Dipodomys minor
  • † Dipodomys ordii
• † Dipoides
  • † Dipoides vallicula
• † Diprionomys
  • † Diprionomys parvus – or unidentified comparable form
• Discammina – tentative report
  • † Discammina eocenica
• Discinisca
  • † Discinisca cumingi

• 

  Fossilized shell of a Discohelix sea snail

  † Discohelix
  • † Discohelix californicus
• † Dissacus
• Distorsio
• Divalinga
  • † Divalinga eburnea
• Divaricella
  • † Divaricella cumulata
• † Domnina
• † Domninoides
• Donax
  • † Donax californicus
  • † Donax gouldii
• † Dorothia
  • † Dorothia californica
• Dosinia
  • † Dosinia conradi
  • † Dosinia dunkeri
  • † Dosinia jacalitosana
  • † Dosinia margaritana
  • † Dosinia mathewsoni
  • † Dosinia mathewsonii
  • † Dosinia merriami
  • † Dosinia milthoidea – tentative report
  • † Dosinia ponderosa
  • † Dosinia santana – type locality for species
  • † Dosinia semiobliterata – or unidentified comparable form
  • † Dosinia whitneyi
• † Dosiniopsis
  • † Dosiniopsis stewartvillensis – type locality for species
• † Drimys – type locality for genus
  • † Drimys defensor – type locality for species
• † Dromomeryx
• † Duchesneodus
  • † Duchesneodus uintensis
• † Dusignathus – type locality for genus
  • † Dusignathus santacruzensis – type locality for species
  • † Dusignathus seftoni – type locality for species

• 

  Life restoration of the Miocene-Pliocene manatee relative Dusisiren

  † Dusisiren
  • † Dusisiren dewana
  • † Dusisiren jordani – type locality for species
• † Dyseohyus – type locality for genus
  • † Dyseohyus fricki – type locality for species
• † Dyseolemur
  • † Dyseolemur pacificus – type locality for species
• Dytiscus
  • † Dytiscus marginicollis

E

Contents

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• D
• E
• F
• G
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• I
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• Echinarachnius
  • † Echinarachnius fairbanksi

• 

  Illustration of a living Echinorhinus shark

  Echinorhinus
  • † Echinorhinus blakei
• Eclipes – type locality for genus
  • † Eclipes extensus
  • † Eclipes manni
  • † Eclipes santamonicae – type locality for species
  • † Eclipes veternus – type locality for species
• † Ectasis – type locality for genus
  • † Ectasis proriger – type locality for species
• † Ectinochilus
  • † Ectinochilus macilentus
• † Ectopistes

  • 

    Taxidermied male Ectopistes migratorius , or passenger pigeon

    † Ectopistes migratorius
• Eleodes
  • † Eleodes acuticaudus
  • † Eleodes giganteus
  • † Eleodes gracilis
  • † Eleodes grandicollis – type locality for species
  • † Eleodes laticollis
  • † Eleodes omissus
  • † Eleodes osculans – type locality for species
• Elgaria
  • † Elgaria multicarinata
• † Ellimma
  • † Ellimma barbarae – type locality for species
  • † Ellimma elmodenae – type locality for species
• † Ellipsonodosaria
  • † Ellipsonodosaria alexanderi – or unidentified comparable form
  • † Ellipsonodosaria atlantisae
  • † Ellipsonodosaria recta
  • † Ellipsonodosaria spinulosa
• Elliptotellina
  • † Elliptotellina townsendensis – or unidentified comparable form

• 

  Life restoration of two of the Eocene-Oligocene anthracothere mammal Elomeryx being menaced by fellow-anthracothere Anthracotherium

  † Elomeryx
  • † Elomeryx armatus
• † Emmachaere – type locality for genus
  • † Emmachaere rhachites – type locality for species
  • † Emmachaere rhomalea
• † Enaliarctos
  • † Enaliarctos mealsi
  • † Enaliarctos mitchelli
• † Enallagma – type locality for genus
  • † Enallagma kirkbyae – type locality for species
• Encope
  • † Encope tenuis – type locality for species
• Engelhardtia
  • † Engelhardtia nevadensis
• Engina
  • † Engina strongi
• † Engraulites – type locality for genus
  • † Engraulites remifer – type locality for species
• Enhydra

  • 

    A living Enhydra lutris , or sea otter

    † Enhydra lutris
  • † Enhydra macrodonta – type locality for species
• † Enhydritherium
  • † Enhydritherium terraenovae
• Ensis
  • † Ensis myrae
• Entomobrya
  • † Entomobrya atrocincta
  • † Entomobrya kirkbyae – type locality for species
• † Eocernia
  • † Eocernia hannibali
• † Eocypraea
  • † Eocypraea castacensis – or unidentified comparable form
  • † Eocypraea maniobraensis – type locality for species
• † Eogryphus
  • † Eogryphus tolmani – or unidentified comparable form
• † Eohaplomys
  • † Eohaplomys matutinus – type locality for species
  • † Eohaplomys serus – type locality for species
  • † Eohaplomys tradux – type locality for species
• † Eomellivora
  • † Eomellivora wimani – or unidentified comparable form

• 

  Fossilized skeleton of the Eocene-Pliocene frog Eopelobates

  † Eopelobates
• † Eopleurotoma
  • † Eopleurotoma whitakerpeakensis – type locality for species
• † Eoscorpius – type locality for genus
  • † Eoscorpius primaevus – type locality for species
• † Eosurcula
  • † Eosurcula inconstans – or unidentified related form
• † Eotaria – type locality for genus
  • † Eotaria citrica – type locality for species
  • † Eotaria crypta – type locality for species
• † Eotibia
  • † Eotibia llajasensis – type locality for species
• † Eotylopus
• † Epelichthys – type locality for genus
  • † Epelichthys michaelis – type locality for species

• 

  Mounted fossilized skeleton of the Miocene bone-crushing dog Epicyon

  † Epicyon
  • † Epicyon haydeni
  • † Epicyon saevus
• † Epihippus
• Epilucina
  • † Epilucina californica
• Epinephelus
• † Epiphragmophora
  • † Epiphragmophora mormonum
• † Epistomina
  • † Epistomina eocenica

• 

  Shell of an Epitonium wentletrap sea snail

  Epitonium
  • † Epitonium bellastriata
  • † Epitonium bellastriatum
  • † Epitonium clarki
  • † Epitonium condoni
  • † Epitonium cookii – or unidentified related form
  • † Epitonium cooperi
  • † Epitonium indianorum
  • † Epitonium insculptum
  • † Epitonium rugiferum – or unidentified comparable form
  • † Epitonium sawinae
• Eponides
  • † Eponides keenani
  • † Eponides kleinpelli
  • † Eponides lodoensis
  • † Eponides umbonatus
• Eptesicus
  • † Eptesicus fuscus – or unidentified comparable form
• † Equisetum
• Equus
  • † Equus conversidens
  • † Equus enormis
  • † Equus idahoensis
  • † Equus pacificus
  • † Equus scotti

  • 

    Fossilized skeleton of the Pliocene-Pleistocene horse Equus simplicidens , also known as the Hagerman horse or American zebra

    † Equus simplicidens
• Eremophila
  • † Eremophila alpestris
• Erethizon
  • † Erethizon bathygnathum
  • † Erethizon cascoensis – type locality for species
  • † Erethizon dorsatum
• † Eriquius
  • † Eriquius plectrodes
• † Erisceles – type locality for genus
  • † Erisceles pristinus – type locality for species
• † Eritima
  • † Eritima evides – type locality for species
• † Escharion – type locality for genus
  • † Escharion townleyi – type locality for species
• Eschrichtius
  • † Eschrichtius robustus – or unidentified comparable form
• † Etringus
  • † Etringus scintillans
• Eubalaena – or unidentified comparable form
• † Eucastor

• 

  Life restoration of the Pleistocene bovid Euceratherium , or the shrub ox. Robert Bruce Horsfall (1913).

  † Euceratherium – type locality for genus
  • † Euceratherium collinum – type locality for species
• Eucrassatella
  • † Eucrassatella semidentata
  • † Eucrassatella subgibbosus – type locality for species
• † Eucyon
  • † Eucyon davisi
• Euleptorhamphus
  • † Euleptorhamphus peronides
• Eumetopias
  • † Eumetopias jubata
• † Euoplocyon
  • † Euoplocyon brachygnathus
• Eupatagus
  • † Eupatagus stevensi
• Euphagus
  • † Euphagus cyanocephalus
• Eurytellina
  • † Eurytellina lorenzoensis
• Euscelis
  • † Euscelis palmeri – type locality for species

• 

  A living Eusmilia stony coral

  Eusmilia
  • † Eusmilia carrizensis – type locality for species
• Euspira
  • † Euspira gesteri
  • † Euspira hornii
  • † Euspira lewisii
  • † Euspira muriciformis
  • † Euspira nuciformis
• † Euspirocromium
  • † Euspirocromium martinezensis
• † Euspirocrommium
  • † Euspirocrommium martinezensis

• 

  A living Eutamias chipmunk

  Eutamias
• † Eutrephoceras
  • † Eutrephoceras hallidayi
  • † Eutrephoceras hannai
  • † Eutrephoceras marksi
  • † Eutrephoceras stephensoni – type locality for species
• Euvola
  • † Euvola keepi
  • † Euvola vogdesi
• † Evesthes
  • † Evesthes jordani
• † Exaeretoptera – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Exaeretoptera fosteri – type locality for species
• † Exilia
  • † Exilia fausta
  • † Exilia talliaferroi – or unidentified comparable form

F

Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
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• P
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• Falco
  • † Falco peregrinus

  • 

    A living Falco sparverius , or American kestrel

    † Falco sparverius
• Falsifusus
• Farrea
  • † Farrea rugosa – type locality for species
• Fartulum
  • † Fartulum hemphilli
  • † Fartulum occidentale
• Felaniella
  • † Felaniella harfordi
• Felis
  • † Felis lacustris
  • † Felis rexroadensis
• † Ficopsis
  • † Ficopsis cooperiana
  • † Ficopsis crescentensis
  • † Ficopsis horni
  • † Ficopsis meganosensis – type locality for species
  • † Ficopsis redmondii
  • † Ficopsis remondi
  • † Ficopsis remondii

• 

  A living Ficus , or fig tree

  Ficus
  • † Ficus decussata
  • † Ficus densifolia
  • † Ficus gesteri
  • † Ficus goshenensis
  • † Ficus modesta – or unidentified comparable form
  • † Ficus nodiferum
  • † Ficus ocoyana
  • † Ficus pyriformis
• Fimbria
  • † Fimbria pacifica
  • † Fimbria susanensis – type locality for species
• Fissurella
  • † Fissurella behri – or unidentified related form
  • † Fissurella volcano

• 

  Fossilized shell of the Oligocen-modern scallop Flabellipecten

  Flabellipecten
  • † Flabellipecten carrizoensis
  • † Flabellipecten stearnsii
• Flabellum
  • † Flabellum californicum
  • † Flabellum clarki – type locality for species
  • † Flabellum cuneiforme
  • † Flabellum stantoni
• † Forestiera
  • † Forestiera buchananensis
• † Forfex – type locality for genus
  • † Forfex hypuralis – type locality for species
• Forreria
  • † Forreria belchei
  • † Forreria belcheri
  • † Forreria carisaensis
  • † Forreria coalingensis
• † Fragilaria
  • † Fragilaria brevistriata
  • † Fragilaria construens
  • † Fragilaria pinnata
• Fratercula

  • 

    A living Fratercula cirrhata , or tufted puffin

    † Fratercula cirrhata
  • † Fratercula dowi – type locality for species
• † Fraxinus
  • † Fraxinus yubaensis – type locality for species
• Frondicularia
  • † Frondicularia tenuissima
• Fulgoraria
  • † Fulgoraria prevostiana
  • † Fulgoraria zinsmeisteri – type locality for species
• † Fulica
  • † Fulica americana
• Fulmarus
  • † Fulmarus glacialis
  • † Fulmarus griseus
  • † Fulmarus hammeri – type locality for species
  • † Fulmarus miocaenus – type locality for species
• Fusimitra – tentative report
  • † Fusimitra simplicissima – or unidentified comparable form
• Fusinus
  • † Fusinus barbarensis
  • † Fusinus calabasensis
  • † Fusinus chehalisensis – or unidentified comparable form
  • † Fusinus hecoxi
  • † Fusinus lincolnensis – or unidentified related form
  • † Fusinus luteopictus
  • † Fusinus meganosensis – type locality for species
  • † Fusinus merriami – or unidentified related form
  • † Fusinus simiensis

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Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
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• X
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• 

  A living Galeocerdo cuvier , or tiger shark

  Galeocerdo
  • † Galeocerdo aduncus
  • † Galeocerdo medius
• Galeodea
  • † Galeodea calfornica
  • † Galeodea carinata – or unidentified related form
  • † Galeodea meganosensis
  • † Galeodea petersoni – or unidentified related form
  • † Galeodea susanae
  • † Galeodea sutterensis

• 

  A living Galeorhinus galeus school shark

  Galeorhinus
  • † Galeorhinus hannibali
  • † Galeorhinus latus – or unidentified comparable form
  • † Galeorhinus zopterus
• † Ganolytes
  • † Ganolytes aratus
  • † Ganolytes cameo
  • † Ganolytes clepsydra – type locality for species
• Gari
  • † Gari californica
  • † Gari diegoensis – or unidentified comparable form
  • † Gari furcata
  • † Gari hornii
  • † Gari texta
• † Gasterosternus
  • † Gasterosternus aculeatus
• Gasterosteus

  • 

    A school of living Gasterosteus aculeatus , or three-spined stickleback

    † Gasterosteus aculeatus
• Gastrochaena
  • † Gastrochaena dubitata – tentative report
• Gaudryina
  • † Gaudryina laevigata
  • † Gaudryina triangularis – or unidentified comparable form
• Gavia
  • † Gavia arctica
  • † Gavia brodkorbi – type locality for species
  • † Gavia concinna
  • † Gavia howardae – type locality for species
  • † Gavia immer
  • † Gavia pacifica

  • 

    Living adult and young Gavia stellata , or red-throated loon

    † Gavia stellata
• † Gemelliporella – tentative report
  • † Gemelliporella punctata – or unidentified related form
• Gemmula
  • † Gemmula diabloensis – type locality for species
  • † Gemmula wattsi
• Genota
  • † Genota keepi
• Genyonemus
  • † Genyonemus lineatus
• Geochelone
• † Geococcyx

  • 

    A living Geococcyx californianus , or greater roadrunner

    † Geococcyx californianus
• Geomys
• Geranoaetus
• Gerrhonotus
• Gibbolucina
  • † Gibbolucina gyrata
  • † Gibbolucina turneri
• † Gila – tentative report
• † Gilbertia
• † Gisortia
  • † Gisortia clarki
• Glans
  • † Glans carpenteri
• Glaucidium

  • 

    A living Glaucidium gnoma , or mountain pygmy owl

    † Glaucidium gnoma
• Glebocarcinus
  • † Glebocarcinus amphioetus
• Globigerina
  • † Globigerina bulloides
  • † Globigerina decepta
  • † Globigerina ouachitaensis
  • † Globigerina triloculinoides
• Globorotalia
  • † Globorotalia crassata
• Globularia
  • † Globularia hannabali – or unidentified comparable form
• Glossus
  • † Glossus susukii – type locality for species
• Glycimeris

• 

  Fossilized shell of a Glycymeris , or bittersweet clam

  Glycymeris
  • † Glycymeris branneri
  • † Glycymeris gigantea
  • † Glycymeris major
  • † Glycymeris perrini
  • † Glycymeris rosecanyonensis
  • † Glycymeris sagittata
  • † Glycymeris septentrionalis
  • † Glycymeris veatchi
  • † Glycymeris veatchii
• Glyptoactis
  • † Glyptoactis domenginica
  • † Glyptoactis keenae
  • † Glyptoactis mcmasteri
  • † Glyptoactis sandiegoensis
• Glyptostrobus
  • † Glyptostrobus oregonensis
• † Gnathamitermes
  • † Gnathamitermes rousei – type locality for species
• Gnathotermes
• † Golerdelphys – type locality for genus
  • † Golerdelphys stocki – type locality for species
• † Goleremys – type locality for genus
  • † Goleremys mckennai – type locality for species
• † Gomphotaria – type locality for genus
  • † Gomphotaria pugnax – type locality for species

• 

  Mounted fossilized skeleton of the Miocene-Pleistocene elephant relative Gomphotherium

  † Gomphotherium
  • † Gomphotherium obscurum
• † Goniobasis – tentative report
• Goniopora
  • † Goniopora vaughani – type locality for species
• Gopherus
  • † Gopherus agassizi
  • † Gopherus agassizii
  • † Gopherus mohavetus – type locality for species
• †Gordonia
  • † Gordonia egregia
• Granulina
  • † Granulina margaritula
• † Gripholagomys – tentative report
• † Griphomys
  • † Griphomys alecer – type locality for species
  • † Griphomys toltecus – type locality for species
• Gymnogyps

  • 

    A living Gymnogyps californianus , or California condor

    † Gymnogyps californianus – type locality for species
• Gyroidina
  • † Gyroidina condoni
  • † Gyroidina orbicularis
  • † Gyroidina planulata
  • † Gyroidina soldanii

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Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
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• X
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• † Hadrogyps – type locality for genus
  • † Hadrogyps aigialeus – type locality for species
• Haliaeetus
  • † Haliaeetus leucocephalus
• † Haliaetus
  • † Haliaetus leucocephalus
• † Halonanus
  • † Halonanus horni
• † Hamamelites
  • † Hamamelites voyana

• 

  A living Haminoea bubble sea snail

  Haminoea
  • † Haminoea postangulata – type locality for species
  • † Haminoea vesicula
• Hanetia
  • † Hanetia elegans
• † Hantkenina
  • † Hantkenina alabamensis
• Haplophragmoides
  • † Haplophragmoides flagleri
  • † Haplophragmoides obliquicameratus

• 

  Fossilized skull of the mesonychian mammal Harpagolestes

  † Harpagolestes – or unidentified comparable form
• † Harrymys
  • † Harrymys magnus
• Harvella
  • † Harvella elegans
• † Hastigerinella
  • † Hastigerinella eocenica
• † Hayia – type locality for genus
  • † Hayia daulica – type locality for species
• † Heliscomys
  • † Heliscomys walshi – type locality for species
• Heloderma
• † Hemiacodon
  • † Hemiacodon gracilis

• 

  Fossilized lower jaw of the Miocene-Pleistocene llama relative Hemiauchenia

  † Hemiauchenia
  • † Hemiauchenia macrocephala
• Hemipristis
  • † Hemipristis heteropleurus
  • † Hemipristis serra
• Hemitelia
  • † Hemitelia pinnata – type locality for species
• Hemitoma
  • † Hemitoma cantonensis – type locality for species
• † Hercoglossa
  • † Hercoglossa merriami – type locality for species
  • † Hercoglossa simiensis – type locality for species
• Here
  • † Here excavata
• † Herpetocetus
  • † Herpetocetus bramblei – type locality for species
  • † Herpetocetus morrowi – type locality for species

• 

  Life restoration of the Eocene-Miocene mammal Herpetotherium

  † Herpetotherium
  • † Herpetotherium innominatum – or unidentified comparable form
  • † Herpetotherium knighti – or unidentified comparable form
  • † Herpetotherium valens
• † Hesperaletes
  • † Hesperaletes borineyi – type locality for species
  • † Hesperaletes walshi – type locality for species
• Hespererato
  • † Hespererato columbella
• † Hesperhys
  • † Hesperhys vagrans
• † Hesperocamelus – or unidentified comparable form
• † Hesperocetus – type locality for genus
  • † Hesperocetus californicus – type locality for species
• † Hesperolagomys
• Hesperomys
  • † Hesperomys nematodon
• † Hesperotestudo
  • † Hesperotestudo orthopygia

• 

  A living Heterodontus , or bullhead shark

  Heterodontus
  • † Heterodontus francisi – or unidentified comparable form
• † Heteropliohippus
  • † Heteropliohippus hulberti – type locality for species
• Heterosilpha
  • † Heterosilpha ramosa
• Heteroterma
  • † Heteroterma striata
  • † Heteroterma trochoidea
• † Hexacanthus
• Hexagrammos
  • † Hexagrammos achrestus – type locality for species

• 

  Illustration of a living Hexanchus , or sixgill shark

  Hexanchus
  • † Hexanchus aus
  • † Hexanchus bus
• Hiatella
  • † Hiatella arctica
• † Hilgardia – tentative report
  • † Hilgardia parkei
• † Hiltonius
  • † Hiltonius australis – type locality for species

• 

  Life restoration of a herd of the Miocene-Pleistocene horse Hipparion . Heinrich Harder (1920).

  † Hipparion
  • † Hipparion forcei
  • † Hipparion tehonense
• † Hippidion
• † Hippipeda
• † Hippnoe
  • † Hippnoe californica
• Hipponix
  • † Hipponix craniodes
  • † Hipponix tumens
• † Hipponoe
  • † Hipponoe californica
• † Hippotherium
• Histrionicus
  • † Histrionicus histrionicus – tentative report
• Hodomys
• Homalopoma
  • † Homalopoma carpenteri
  • † Homalopoma domenginensis
  • † Homalopoma pacifica
  • † Homalopoma wattsi
• Homo
  • † Homo sapiens
• † Homomya

• 

  Restoration of Pliocene-Pleistocene Homotherium , or scimitar cat

  † Homotherium
  • † Homotherium serum – or unidentified comparable form
• † Hopkinsina
  • † Hopkinsina compressa
• † Hoplictis
  • † Hoplictis grangerensis – or unidentified comparable form
• † Hoplophoneus
  • † Hoplophoneus cerebralis
• † Humilaria
  • † Humilaria perlaminosa

• 

  Life restoration of the Eocene-Miocene creodont mammal Hyaenodon

  † Hyaenodon
  • † Hyaenodon venturae
  • † Hyaenodon vetus – type locality for species
• Hyalina
  • † Hyalina californica
• † Hyalinonetrion
  • † Hyalinonetrion clavatum
• Hydrangea
  • † Hydrangea californica – type locality for species
• † Hydrodamalis
  • † Hydrodamalis cuestae – type locality for species

  • 

    Restorative model of the Pleistocene-Holocene manatee relative Hydrodamalis gigas , or Steller's sea cow

    † Hydrodamalis gigas
• Hydrophilus
• Hyla
• † Hyopsodus – or unidentified comparable form
• † Hyperbaena
  • † Hyperbaena diforma
• † Hypertragulus
  • † Hypertragulus calcaratus
  • † Hypertragulus hesperius
• † Hypohippus
• † Hypolagus
  • † Hypolagus edensis – type locality for species
  • † Hypolagus fontinalis
  • † Hypolagus furlongi
  • † Hypolagus gidleyi
  • † Hypolagus parviplicatus – or unidentified comparable form
  • † Hypolagus tedfordi
  • † Hypolagus vetus
• † Hyrachyus

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• † Ibarus
  • † Ibarus ignotus – or unidentified comparable form
• † Idiophyseter – type locality for genus
  • † Idiophyseter merriami – type locality for species
• † Ignacius
  • † Ignacius frugivorus
• † Ilingoceros

• 

  Restoration of the Miocene walrus Imagotaria

  † Imagotaria – type locality for genus
  • † Imagotaria downsi – type locality for species
• † Indarctos
• † Inga
  • † Inga ionensis – type locality for species
• † Interchlamys
  • † Interchlamys interlineata – or unidentified comparable form
• † Ioscion
  • † Ioscion morgani
• Ischnochiton
  • † Ischnochiton sanctaemonicae
• † Ischyrocyon
  • † Ischyrocyon gidleyi

• 

  Mounted fossilized skeleton of the Eocene-Oligocene rodent Ischyromys

  † Ischyromys
• Iselica
  • † Iselica fenestrata
• Isognomon
  • † Isognomon clarki
• Isurus
  • † Isurus aus
  • † Isurus benedini
  • † Isurus bus
  • † Isurus oxyrhynchus
  • † Isurus oxyrinchus
  • † Isurus planus

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Contents

• A
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• D
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• I
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• M
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• U
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• W
• X
• Y
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• † Jacobsomys
  • † Jacobsomys dailyi – type locality for species
• † Jamilcotatus
  • † Jamilcotatus boreios – type locality for species
• Jaton
  • † Jaton eldridgei
  • † Jaton festivus
• † Johannsenomyia
  • † Johannsenomyia hotchkissae – type locality for species
• Jouannetia
• Juliacorbula
  • † Juliacorbula luteola
• † Julus
  • † Julus cavicola – type locality for species
  • † Julus occidentalis – type locality for species
• † Jumaraina
  • † Jumaraina rinconensis – type locality for species
• † Juncus

• 

  A living Juniperus , or juniper tree

  Juniperus

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• Kalolophus
  • † Kalolophus antillarum – or unidentified comparable form
• † Kampholophos – type locality for genus
  • † Kampholophos serrulus – type locality for species
• Karreriella
  • † Karreriella barbati
  • † Karreriella mediaaquaensis
• Katherinella
• Kelletia
  • † Kelletia kelletii
• Kellia
  • † Kellia suborbicularis

• 

  Life restoration of the Oligocene-Miocene dolphin Kentriodon

  † Kentriodon – type locality for genus
  • † Kentriodon obscurus – type locality for species
• † Keteleeria
  • † Keteleeria heterophylloides
• † Kewia – tentative report
  • † Kewia fairbanksi – or unidentified comparable form
• † Kingena
  • † Kingena simiensis
• † Kirkomys – or unidentified comparable form
• † Knightomys – or unidentified comparable form
• † Kummelonautilus
• Kurtiella
  • † Kurtiella tumida
• Kurtzia
  • † Kurtzia arteaga
• Kurtziella
  • † Kurtziella plumbea

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Contents

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• 

  Shell in multiple views of a Labyrinthus land snail

  † Labyrinthus
  • † Labyrinthus obtusus – type locality for species
• Lacuna
  • † Lacuna carinata
  • † Lacuna porrecta
  • † Lacuna solidula
  • † Lacuna unifasciata
• † Lacunaria
  • † Lacunaria striata – or unidentified related form
• Laevicardium

  • 

    Shell of a Laevicardium elatum , or giant egg cockle

    † Laevicardium elatum
  • † Laevicardium substriatum
• Lagena
  • † Lagena isabella
  • † Lagena strumosa
  • † Lagena substriata
  • † Lagena sulcata
  • † Lagena vulgaris
• Lamelliconcha
  • † Lamelliconcha clarki
• Lamna
• Lampanyctus
• † Lampris – type locality for genus

  • 

    Life restoration of the Miocene opah fish Lampris zatima

    † Lampris zatima – type locality for species
• † Lamprolithax – type locality for genus
  • † Lamprolithax annectens – type locality for species
  • † Lamprolithax simulans – type locality for species
• Lampropeltis
  • † Lampropeltis getulus
• † Lantanotherium
  • † Lantanotherium dehmi
  • † Lantanotherium sawini
• † Lapparia
  • † Lapparia eomagna
• Larus

  • 

    A living Larus californicus , or California gull

    † Larus californicus
  • † Larus delawarensis
  • † Larus glaucescens
  • † Larus philadelphia
• Latirus
  • † Latirus buwaldana
  • † Latirus nightingalei – or unidentified comparable form
  • † Latirus roseburgensis – or unidentified comparable form
• † Laurophyllum
  • † Laurophyllum fremontensis
  • † Laurophyllum litseaefolia
• † Laytonia – type locality for genus
  • † Laytonia californica – type locality for species
• Lechytia
• Leda
  • † Leda gabbi
• † Legionarictis – type locality for genus
  • † Legionarictis fortidens – type locality for species
• † Leidymys
• † Lembicus – type locality for genus
  • † Lembicus meiklejohni – type locality for species
• Lenticulina
  • † Lenticulina convergens
• Lepeta
  • † Lepeta concentrica

• 

  A living Lepidochitona chiton

  Lepidochitona
  • † Lepidochitona keepiana
• † Lepidogobias
  • † Lepidogobias lepidus
• Lepidozona
  • † Lepidozona pectinulatus
• Lepisosteus
  • † Lepisosteus spatula – or unidentified comparable form
• † Leptacanthichthys
  • † Leptacanthichthys gracilispinis
• † Leptarctus
  • † Leptarctus ancipidens
  • † Leptarctus wortmani

• 

  Illustration of a fossilized skull of the Oligocene-Miocene dog Leptocyon

  † Leptocyon
  • † Leptocyon leidyi
  • † Leptocyon tejonensis – type locality for species
  • † Leptocyon vafer
  • † Leptocyon vulpinus
• † Leptodontomys
  • † Leptodontomys stirtoni
• † Leptomeryx
  • † Leptomeryx blacki
• Leptopecten
  • † Leptopecten andersoni

  • 

    A living Leptopecten latiauratus , or kelp scallop

    † Leptopecten latiauratus
• † Leptoreodon
  • † Leptoreodon edwardsi – type locality for species
  • † Leptoreodon golzi – type locality for species
  • † Leptoreodon leptolophus – type locality for species
  • † Leptoreodon major – type locality for species
  • † Leptoreodon marshi – or unidentified comparable form
  • † Leptoreodon pusillus – type locality for species
  • † Leptoreodon stocki – type locality for species
• † Leptotomus
  • † Leptotomus caryophilus
• Lepus
  • † Lepus americanus
  • † Lepus californicus
  • † Lepus callotis
• Leukoma
  • † Leukoma staminea
• Lima
• Limaria
  • † Limaria hemphilli

• 

  Top view of a fossilized skull of the Eocene creodont mammal Limnocyon

  † Limnocyon
• † Limnoecus
  • † Limnoecus tricuspis – type locality for species
• † Limosa
  • † Limosa fedoa
  • † Limosa vanrossemi – type locality for species
• Linga
• † Linophryne
  • † Linophryne indica
• † Liolithax – type locality for genus
  • † Liolithax kernensis – type locality for species
• Liquidambar
  • † Liquidambar californicum
• Lirobittium – tentative report
• † Lirosceles
  • † Lirosceles elegans – type locality for species
• Lirularia
  • † Lirularia funiculata
  • † Lirularia lirulata
• Lissodelphis – or unidentified comparable form
• † Lithocarpus
  • † Lithocarpus klamathensis
  • † Lithocarpus nevadensis
• Lithophaga
  • † Lithophaga plumula
• Lithophyllum
  • † Lithophyllum sierraeblancae – type locality for species

• 

  Life restoration of the Paleocene-Eocene bird Lithornis

  † Lithornis – or unidentified comparable form
• Lithothamnion
  • † Lithothamnion grahami
  • † Lithothamnion laminosum – type locality for species
  • † Lithothamnion luxurum
  • † Lithothamnion manni
  • † Lithothamnion meganosium
  • † Lithothamnion validum – or unidentified related form
  • † Lithothamnion wallisium
• † Litorhadia
  • † Litorhadia washingtonensis – or unidentified comparable form
• Littorina
  • † Littorina petricola
  • † Littorina planaxis
  • † Littorina scutulata
• † Lituyapecten
  • † Lituyapecten purisimaensis

• 

  Life restoration of the Miocene marine drumfish Lompoquia

  † Lompoquia – type locality for genus
  • † Lompoquia retropes – type locality for species
• † Lonchodelphis
  • † Lonchodelphis occiduus – type locality for species
• Lontra
  • † Lontra canadensis
• † Lophar – type locality for genus
  • † Lophar miocaenus – type locality for species
• † Lophocetus
  • † Lophocetus repenningi – type locality for species
• † Lophortyx
  • † Lophortyx californica
• † Lora
• † Losinia
• Lottia
  • † Lottia limatula

  • 

    Shell of a Lottia scabra , or rough limpet

    † Lottia scabra
• † Loxolithax – type locality for genus
  • † Loxolithax sinuosa – type locality for species
• † Loxotrema
  • † Loxotrema turritum
• Lucapinella
  • † Lucapinella callomarginata
• Lucina
  • † Lucina gaylordi
  • † Lucina wattsi
• Lucinisca
  • † Lucinisca nuttalli
• Lucinoma
  • † Lucinoma acutilineata
  • † Lucinoma annulatum
• Luidia
  • † Luidia etchegoinensis – type locality for species
  • † Luidia sanjoaquinensis – type locality for species
• † Lutianus
  • † Lutianus hagari – type locality for species

• 

  Fossilized skull of the Eocene carnivoran mammal Lycophocyon

  † Lycophocyon – type locality for genus
  • † Lycophocyon hutchisoni – type locality for species
• † Lygisma – type locality for genus
  • † Lygisma tenax – type locality for species
• Lygodium
  • † Lygodium kaulfussi
• Lynx
  • † Lynx fasciatus
  • † Lynx rufus
• Lyonsia
  • † Lyonsia califomica
  • † Lyonsia venturaensis – type locality for species
• Lyria
  • † Lyria andersoni
• † Lyrischapa
  • † Lyrischapa lajollaensis
• † Lyropecten
  • † Lyropecten bowersi
  • † Lyropecten crassicardo
  • † Lyropecten magnolia
  • † Lyropecten miguelensis
  • † Lyropecten perrini
• † Lyrosurcula – tentative report

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• † Machaeromeryx – tentative report
  • † Machaeromeryx tragulus

• 

  Fossilized cranium of the Miocene-Pleistocene saber-toothed cat Machairodus

  † Machairodus
• Macoma
  • † Macoma andersoni
  • † Macoma calcarea
  • † Macoma carlottensis
  • † Macoma copelandi
  • † Macoma diabloensis
  • † Macoma expansa
  • † Macoma indentata
  • † Macoma inquinata
  • † Macoma moesta

  • 

    Shell of Macoma nasuta , or the bent-nosed clam

    † Macoma nasuta
  • † Macoma pabloensis – or unidentified comparable form
  • † Macoma panzana
  • † Macoma planiuscula – or unidentified comparable form
  • † Macoma secta
  • † Macoma viticola
• Macrarene
• Macrocallista
  • † Macrocallista furlongi – or unidentified comparable form
  • † Macrocallista horni – or unidentified comparable form
  • † Macrocallista meganosensis – type locality for species
  • † Macrocallista pittsburgensis
  • † Macrocallista squalida
  • † Macrocallista squalidus
  • † Macrocallista weaveri
• † Macrochlamis
  • † Macrochlamis magnolia

• 

  Life restoration of the Oligocene toothed-whale Macrodelphinus (background)

  † Macrodelphinus – type locality for genus
  • † Macrodelphinus kelloggi – type locality for species
• † Macrotarsius
  • † Macrotarsius roederi – type locality for species
• Mactromeris
  • † Mactromeris abbotti
  • † Mactromeris acutirostrata – or unidentified comparable form
  • † Mactromeris albaria
  • † Mactromeris bisculpturata – or unidentified comparable form
  • † Mactromeris brevirostrata
  • † Mactromeris catilliformis
  • † Mactromeris hemphillii
  • † Mactromeris mercedensis – or unidentified comparable form
  • † Mactromeris merriami
  • † Mactromeris montereyana – type locality for species
  • † Mactromeris muliniaformis – type locality for species
  • † Mactromeris pittsburgensis – or unidentified comparable form
  • † Mactromeris polynyma
  • † Mactromeris ramonensis
  • † Mactromeris rushi
  • † Mactromeris sectoris
  • † Mactromeris tejonensis
• Mactrotoma
  • † Mactrotoma californica
  • † Mactrotoma nasuta
• Madracis
  • † Madracis wellsi – type locality for species
• Madrepora
  • † Madrepora solida – type locality for species

• 

  Close-up view of a Magnolia flower

  Magnolia
  • † Magnolia corrallina
  • † Magnolia dayana
• Mahonia
  • † Mahonia macginitiei
  • † Mahonia reticulata
  • † Mahonia simplex
• Makaira
• Malea
  • † Malea ringens
• Malletia
• Mallotus
  • † Mallotus riparius
• † Mambrinia
  • † Mambrinia gallica – type locality for species
• † Mammut ^[3]
  • † Mammut americanum – all local specimens previously referred to this species have since been reclassified in the new species M. pacificus. ^[4]
  • † Mammut cosoensis
  • † Mammut matthewi
  • † Mammut pacificus – type locality for species. Many specimens were previously regarded as specimens of M. americanum. ^[5]
• † Mammuthus
  • † Mammuthus columbi
  • † Mammuthus exilis
  • † Mammuthus hayi

  • 

    Restoration of a herd of Mammuthus primigenius , or wooly mammoths

    † Mammuthus primigenius
• † Mancalla – type locality for genus
  • † Mancalla californiensis – type locality for species
  • † Mancalla cedrosensis – or unidentified comparable form
  • † Mancalla diegenesis
  • † Mancalla diegensis – type locality for species
  • † Mancalla emlongi – type locality for species
  • † Mancalla lucasi – type locality for species
  • † Mancalla milleri – type locality for species
  • † Mancalla vegrandis
  • † Mancalla vergrandis – type locality for species
• † Mangelia
  • † Mangelia variegata
• † Margaritana
  • † Margaritana falcata – or unidentified comparable form
• Margarites
  • † Margarites pupillus

• 

  A living Marginella margin sea snail

  Marginella
• Marginulina
  • † Marginulina adunca – or unidentified comparable form
  • † Marginulina dubia
  • † Marginulina eximia
  • † Marginulina munda
• Marmota
• † Marshochoerus
  • † Marshochoerus socialis

• 

  A living Martes , or marten

  Martes
• Martesia
  • † Martesia meganosensis – type locality for species
• † Martinogale
  • † Martinogale faulli – type locality for species
• Martinottiella
  • † Martinottiella eocenica
• Maxwellia
  • † Maxwellia gemma
• † Mayena – tentative report
  • † Mayena kewi – or unidentified comparable form
• † Mealanitta
  • † Mealanitta deglandi
• † Mediochoerus
  • † Mediochoerus mohavensis
• † Megacamelus
  • † Megacamelus merriami
• Megachasma
  • † Megachasma applegatei – type locality for species
• Megachile
  • † Megachile gentilis
• † Megahippus
  • † Megahippus matthewi
  • † Megahippus mckennai – type locality for species

• 

  Mounted fossilized skeleton of the Miocene-Pleistocene ground sloth Megalonyx

  † Megalonyx
  • † Megalonyx jeffersonii
  • † Megalonyx mathisi – type locality for species
  • † Megalonyx wheatleyi
• Megalops – tentative report
  • † Megalops vigilax
• † Megapaloelodus
  • † Megapaloelodus connectens
• † Megapetalus
• Megaptera
  • † Megaptera miocaena – type locality for species
• Megatebennus
  • † Megatebennus bimaculata
  • † Megatebennus bimaculatus
• Megathura – tentative report
• † Megatylopus
  • † Megatylopus matthewi – or unidentified comparable form
• † Megistostoma
  • † Megistostoma gabbiana – or unidentified comparable form
• Melampus
  • † Melampus olivaceous
  • † Melampus olivaceus
• Melanella
  • † Melanella hastata
  • † Melanella micans
• Melanitta
  • † Melanitta ceruttii – type locality for species
  • † Melanitta deglandi – tentative report
  • † Melanitta fusca
  • † Melanitta perspicillata
• Melanoplus
  • † Melanoplus differentialis
• Melanthrips
• Meleagris
  • † Meleagris richmondi – type locality for species
• † Meliosma
  • † Meliosma truncata – type locality for species
• † Melosira
  • † Melosira solida
• Melospiza
  • † Melospiza melodia
• † Meniscomys
• † Meniscotherium
  • † Meniscotherium tapiacitum

• 

  Life restoration of the Miocene rhinoceros Menoceras

  † Menoceras
  • † Menoceras barbouri
• Mephitis
  • † Mephitis mephitis
• † Mercyhippus – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Mercyhippus brevidontus
• Meretrix
  • † Meretrix californica
  • † Meretrix conradi
  • † Meretrix hornii
  • † Meretrix lorenzana
  • † Meretrix palmeri – type locality for species
  • † Meretrix stantoni
  • † Meretrix uvasana – type locality for species
• Mergus
  • † Mergus serrator
• Merluccius
  • † Merluccius productus
• † Merriamina – type locality for genus
  • † Merriamina ectenes – type locality for species

• 

  Life restoration of the Miocene pronghorn Merriamoceros with an anachronistic human to scale

  † Merriamoceros
  • † Merriamoceros coronatus – type locality for species
• † Merychippus
  • † Merychippus brevidontus – type locality for species
  • † Merychippus californicus – type locality for species
  • † Merychippus relictus – or unidentified comparable form
  • † Merychippus stevensi
• † Merychyus
  • † Merychyus elegans
  • † Merychyus minimus
  • † Merychyus novomexicanus
  • † Merychyus smithi
• † Merycobunodon
  • † Merycobunodon littoralis – type locality for species

• 

  Mounted fossilized skeleton of the Miocene pronghorn Merycodus

  † Merycodus
  • † Merycodus joraki
  • † Merycodus necatus
• Mesalia
  • † Mesalia clarki – type locality for species
  • † Mesalia martinezensis
• † Mesocyon
  • † Mesocyon brachyops
  • † Mesocyon coryphaeus
• † Mesodma – tentative report
• † Mesohippus
• Mesophyllum
  • † Mesophyllum californicum
  • † Mesophyllum fructiferum
  • † Mesophyllum obsitum
  • † Mesophyllum schenckii – type locality for species
  • † Mesophyllum schenki

• 

  Fossilized skull of the Miocene oreodont mammal Mesoreodon

  † Mesoreodon
  • † Mesoreodon chelonyx
• † Metacerithium
  • † Metacerithium packardi
• † Metalopex
  • † Metalopex merriami
• † Metanoiamys
  • † Metanoiamys agorus – type locality for species
  • † Metanoiamys fantasma
  • † Metanoiamys korthi – type locality for species
  • † Metanoiamys marinus – type locality for species
• † Metarhinus
  • † Metarhinus pater – type locality for species
• † Metatomarctus
  • † Metatomarctus canavus

• 

  Mounted fossilized skeleton of the Miocene-Pleistocene manatee relative Metaxytherium

  † Metaxytherium
  • † Metaxytherium arctodites
• † Metechinus
  • † Metechinus amplior
• † Miacis
  • † Miacis hookwayi – type locality for species
• † Michenia
  • † Michenia agatensis
  • † Michenia mudhillsensis
• Micranellum
  • † Micranellum crebricinctum
• † Microcosmodon – or unidentified comparable form
• Microdipodops

• 

  A modern Microgadus , or tomcod

  Microgadus – tentative report
• † Micropallus
  • † Micropallus whitneyi
• † Microparamys
  • † Microparamys minutus – or unidentified comparable form
  • † Microparamys tricus – type locality for species
  • † Microparamys woodi – type locality for species
• † Microsula
• † Microsyops
  • † Microsyops annectens – or unidentified comparable form
  • † Microsyops kratos – type locality for species
• † Microtomarctus
  • † Microtomarctus conferta
• Microtus

  • 

    A living Microtus californicus , or California vole

    † Microtus californicus
  • † Microtus meadensis
  • † Microtus miguelensis – type locality for species
• Mictomys
  • † Mictomys kansasensis
  • † Mictomys vetus
• Miltha
  • † Miltha meganosensis – type locality for species
  • † Miltha packi
  • † Miltha sanctaecrucis
  • † Miltha xantusi
• † Mimomys
• † Mimotricentes
  • † Mimotricentes tedfordi – type locality for species
• † Miochlorotettix – type locality for genus
  • † Miochlorotettix gibroni – type locality for species
  • † Miochlorotettix kirkbyi – type locality for species
• † Miocryptorhopalum – type locality for genus
  • † Miocryptorhopalum kirkbyae – type locality for species
• † Miocyon
  • † Miocyon scotti – or unidentified comparable form
• † Miodelphis – type locality for genus
  • † Miodelphis californicus – type locality for species
• † Miogonates – type locality for genus
  • † Miogonates subimpunctatus – type locality for species
• † Miohierax – type locality for genus
  • † Miohierax stocki – type locality for species
• † Miohippus
  • † Miohippus annectens
• † Miolabis
  • † Miolabis californicus – type locality for species
  • † Miolabis fricki – type locality for species

• 

  Fossilized skull (top) and interpretive line drawing (middle) of the Miocene auk relative Miomancalla compared with the skull of a Holocene Pinguinus impennis , or great auk

  † Miomancalla
  • † Miomancalla howardi – type locality for species
  • † Miomancalla wetmorei – type locality for species
• † Miomesamia – type locality for genus
  • † Miomesamia juliae – type locality for species
• † Miomonalonion – type locality for genus
  • † Miomonalonion conoidifrons – type locality for species
• † Miomustela
• † Mionictis
  • † Mionictis angustidens
• † Miospermophilus
  • † Miospermophilus wyomingensis – or unidentified comparable form
• † Miosula – type locality for genus
  • † Miosula media – type locality for species
• † Miotapirus
• † Miotomodon
  • † Miotomodon mayi – type locality for species
• † Miotroctes – type locality for genus
  • † Miotroctes rousei – type locality for species
• † Miotylopus
  • † Miotylopus gibbi

• 

  Restoration of the Pliocene-Pleistocene Miracinonyx , or American cheetah

  † Miracinonyx
  • † Miracinonyx studeri – tentative report
• Mirounga
  • † Mirounga angustirostris – or unidentified comparable form
• Mitra
  • † Mitra fultoni
  • † Mitra idae
  • † Mitra idea
  • † Mitra simplicissima
• Mitrella
  • † Mitrella carinata
  • † Mitrella gausapata
  • † Mitrella gouldi
  • † Mitrella tuberosa
• † Mixocetus – type locality for genus
  • † Mixocetus elysius – type locality for species
• Modiolatus
  • † Modiolatus rectus
• Modiolus

  • 

    Exterior (left) and interior of the shell of a Modiolus capax , or fat horsemussel

    † Modiolus capax – or unidentified comparable form
  • † Modiolus carpenteri
  • † Modiolus multiradiatus
  • † Modiolus ornatus
  • † Modiolus veronensis
  • † Modiolus ynezianus
• Modulus
  • † Modulus unidens
• † Mojavemys
  • † Mojavemys alexandrae – type locality for species
  • † Mojavemys lophatus
  • † Mojavemys wilsoni
• † Molopophorus
  • † Molopophorus aequicostatus – or unidentified comparable form
  • † Molopophorus antiquatus
  • † Molopophorus biplicatus
  • † Molopophorus californicus – type locality for species
  • † Molopophorus dalli
  • † Molopophorus tejonensis
• Moniliopsis
  • † Moniliopsis incisa

• 

  Shell in multiple views of a Monoplex triton sea snail

  Monoplex
  • † Monoplex amictus
• † Monosaulax
  • † Monosaulax pansus
• Montipora
• † Mookomys
  • † Mookomys formicarum
  • † Mookomys subtilis
• Mopalia
  • † Mopalia acuta
  • † Mopalia ciliata
  • † Mopalia lignosa – or unidentified comparable form

• 

  Mounted fossilized skeleton of the Miocene chalicothere mammal Moropus

  † Moropus
• Morula
  • † Morula lugubris
• Morus – or unidentified comparable form
• Morus
  • † Morus humeralis – type locality for species
  • † Morus lompocanus – type locality for species
  • † Morus magnus – type locality for species
  • † Morus recentior – type locality for species
  • † Morus reyana – type locality for species
  • † Morus reyma
  • † Morus reyna
  • † Morus vagabundus – type locality for species
• Mulinia
  • † Mulinia pallida
• Murex – or unidentified related form
  • † Murex mansfieldi – or unidentified related form
• Musculus
• Mustela
  • † Mustela americana – type locality for species
  • † Mustela frenata
• † Mya
  • † Mya dickersoni
  • † Mya fujiei
  • † Mya truncata
• † Myadesma
  • † Myadesma pacifica
• Myctophum
• Myliobatis
  • † Myliobatis californicus

• 

  Fossilized skeleton of the Pliocene-Holocene peccary Mylohyus

  † Mylohyus
  • † Mylohyus fossilis
• † Mylopharodon
  • † Mylopharodon conocephalus
• Mysella
  • † Mysella aleutica
• Mytilimeria
  • Mytilimeria nuttalli
• Mytilus
  • † Mytilus arnoldi

  • 

    Living Mytilus californianus , or california mussels

    † Mytilus californianus
  • † Mytilus edulis
  • † Mytilus expansus
  • † Mytilus loeli
  • † Mytilus mathewsoni
  • † Mytilus mathewsonii
  • † Mytilus middendorffi
• † Mytonolagus
• † Mytonomys
  • † Mytonomys burkei – type locality for species
  • † Mytonomys mytonensis – or unidentified comparable form
• Myurella
  • † Myurella martini

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Contents

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• 

  Partial fossilized mandible of the Miocene-Pliocene horse Nannippus

  † Nannippus
• † Nannocetus – type locality for genus
  • † Nannocetus eremus – type locality for species
• † Nannolithax – type locality for genus
  • † Nannolithax gracilis – type locality for species
• † Nanotragulus
  • † Nanotragulus ordinatus – tentative report
• Narona
  • † Narona clavatula
• Nassa
  • † Nassa cerritensis
  • † Nassa delosi
  • † Nassa fossata
  • † Nassa mendica
  • † Nassa perpinguis
  • † Nassa tegula
• Nassarius
  • † Nassarius californianus
  • † Nassarius cerritensis

  • 

    A living Nassarius fossatus , or channeled basket snail

    † Nassarius fossatus
  • † Nassarius grammatus
  • † Nassarius hamlini
  • † Nassarius inquus
  • † Nassarius mendicus
  • † Nassarius perpinguis
  • † Nassarius stocki
  • † Nassarius tegula
  • † Nassarius whitneyi
• Natica
  • † Natica lewisi – or unidentified related form
  • † Natica recluziana
  • † Natica uvasana
• Naticarius
  • † Naticarius unifasciata

• 

  Mounted fossilized skeleton of the Pleistocene Odocoileus lucasi , or American mountain deer

  † Navahoceros
• Nectandra
  • † Nectandra presanguinea
• Negaprion
  • † Negaprion antiquus
  • † Negaprion elongata – or unidentified comparable form
• † Nekrolagus
• † Nelumbium
  • † Nelumbium lacunosum – type locality for species
• Nemocardium
  • † Nemocardium centifilosum
  • † Nemocardium linteum
• † Neobernaya
  • † Neobernaya fernandoensis
  • † Neobernaya spadicea
• † Neoculicoides – type locality for genus
  • † Neoculicoides jeanneae – type locality for species
• † Neogyps
  • † Neogyps errans
• † Neohipparion
  • † Neohipparion eurystyle
  • † Neohipparion gidleyi – type locality for species
  • † Neohipparion leptode
  • † Neohipparion trampasense
• † Neoliotomus – or unidentified comparable form
• † Neolitsea
  • † Neolitsea lata – type locality for species

• 

  Mounted fossilized skeleton of the Miocene aquatic mammal Neoparadoxia

  † Neoparadoxia – type locality for genus
  • † Neoparadoxia cecilialina – type locality for species
  • † Neoparadoxia repenningi – type locality for species
• Neophrontops
  • † Neophrontops americanus
• † Neoplagiaulax
• Neotamias
  • † Neotamias senex
• † Neotherium – type locality for genus
  • † Neotherium mirum – type locality for species
• Neotoma
  • † Neotoma cinerea – type locality for species
  • † Neotoma fossilis
  • † Neotoma fuscipes
  • † Neotoma lepida
  • † Neotoma quadriplicata
  • † Neotoma sawrockensis
  • † Neotoma taylori
• Neptunea
  • † Neptunea andersoni
  • † Neptunea eurekaensis
  • † Neptunea lawsoni
  • † Neptunea lirata
  • † Neptunea mucronata
  • † Neptunea pulchra
  • † Neptunea scotiaensis
  • † Neptunea tabiilata – or unidentified comparable form
  • † Neptunea tabulata
• Nerita
  • † Nerita beali – tentative report

• 

  Living Neritina or nerite snails

  Neritina
  • † Neritina picta
• † Nerium
  • † Nerium hinoidea – type locality for species
• † Nerterogeomys
  • † Nerterogeomys anzensis
  • † Nerterogeomys garbanii
• Neverita
  • † Neverita alta
  • † Neverita callosa
  • † Neverita globosa
  • † Neverita reclusiana
  • † Neverita reclusianus
  • † Neverita recluziana
  • † Neverita recluzianus
  • † Neverita secta – or unidentified comparable form
  • † Neverita thomsonae
• Nicrophorus
  • † Nicrophorus guttula
  • † Nicrophorus marginatus – type locality for species
  • † Nicrophorus nigrita
• † Nimravides
  • † Nimravides thinobates

• 

  Illustration of the fossilized skull of the Oligocene false saber-toothed cat Nimravus

  † Nimravus
• Niso – tentative report
  • † Niso antiselli
• † Nitzschia
  • † Nitzschia reinholdi
  • † Nitzschia romana
• Nodipecten
  • † Nodipecten cerrosensis
  • † Nodipecten estrellanus
  • † Nodipecten subnodosus
• Nodogenerina
  • † Nodogenerina adolphina
  • † Nodogenerina advena
  • † Nodogenerina sanctaecrucis
  • † Nodogenerina wegemanni
• Nodosaria
  • † Nodosaria holserica
  • † Nodosaria longiscata
  • † Nodosaria pyrula
• Nonion
  • † Nonion incisum
• † Nonomys
  • † Nonomys gutzleri – type locality for species
• Norrisia
  • † Norrisia norrisii
• † Nothroptheriops
  • † Nothroptheriops shastense – or unidentified comparable form

• 

  Life restoration of the Pleistocene ground sloth Nothrotheriops

  † Nothrotheriops
  • † Nothrotheriops texanus
• † Nothrotherium
  • † Nothrotherium shastense – type locality for species
• Notiosorex
  • † Notiosorex crawfordi
  • † Notiosorex jacksoni
• Notoacmea
  • † Notoacmea inessa
• Notorhynchus
• † Nototamias
• Nucella
  • † Nucella elsmerensis
  • † Nucella emarginata
  • † Nucella lamellosa
  • † Nucella lima
  • † Nucella spirata
  • † Nucella trancosana
• Nucula
  • † Nucula exigua
  • † Nucula gabbiana
  • † Nucula washingtonensis
• Nuculana
  • † Nuculana gabbi – or unidentified comparable form
  • † Nuculana ochsneri
  • † Nuculana ramonensis
• Numenius

  • 

    A living Numenius phaeopus , or whimbrel

    † Numenius phaeopus
• Nutricola
  • † Nutricola cymata
  • † Nutricola ovalis
  • † Nutricola salmonea
  • † Nutricola tantilla
• Nuttallia
  • † Nuttallia nuttallii
• † Nyctitherium – or unidentified comparable form
• Nyctoporis
  • † Nyctoporis carinata
• †Nyssa
  • † Nyssa californica
  • † Nyssa copeana

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• † Ocajila – or unidentified comparable form
• Oceanodroma

  • 

    A living Oceanodroma furcata , or fork-tailed storm petrel

    † Oceanodroma furcata
  • † Oceanodroma homochroa
  • † Oceanodroma hubbsi – type locality for species
• † Ocenbra
  • † Ocenbra topangensis – or unidentified comparable form
• Ocenebra
  • † Ocenebra barbarensis – or unidentified comparable form
  • † Ocenebra circumtexta
  • † Ocenebra foveolata
  • † Ocenebra interfossa
  • † Ocenebra lurida
  • † Ocenebra poulsoni
  • † Ocenebra tenuisculpta
  • † Ocenebra topangensis
• Ocotea
  • † Ocotea ovoidea
  • † Ocotea perseaformis
• † Ocystias
  • † Ocystias sagitta
• † Odaxosaurus
• Odobenus

  • 

    A living Odobenus rosmarus , or walrus

    † Odobenus rosmarus
• Odocoileus
  • † Odocoileus hemionus
  • † Odocoileus virginianus – or unidentified comparable form
• Odontaspis
  • † Odontaspis ferox
• † Odontogryphaea – tentative report
  • † Odontogryphaea haleyi
• Odostomia
  • † Odostomia avellana
  • † Odostomia beringi – or unidentified comparable form
  • † Odostomia californica – or unidentified comparable form
  • † Odostomia callimene – or unidentified related form
  • † Odostomia columbiana – or unidentified comparable form
  • † Odostomia diaboli

  • 

    Illustration of the shell of an Odostomia donilla pyram shell sea snail

    † Odostomia donilla
  • † Odostomia eugena
  • † Odostomia farallonensis
  • † Odostomia fetella
  • † Odostomia gravida
  • † Odostomia helena
  • † Odostomia minutissima – or unidentified comparable form
  • † Odostomia nemo
  • † Odostomia nota
  • † Odostomia stephensae
  • † Odostomia tacomoensis
  • † Odostomia tenuisculpta – or unidentified comparable form
• † Oedolithax – type locality for genus
  • † Oedolithax mira – type locality for species
• Oenopota
  • † Oenopota fidicula

  • 

    Illustration of the shell of an Oenopota tabulata sea snail

    † Oenopota tabulata
• Ogmodontomys
  • † Ogmodontomys sawrockensis
• † Olequahia
  • † Olequahia domenginica
  • † Olequahia lorenzana
• † Oligoryctes
• Oliva
  • † Oliva californica
  • † Oliva meganosensis – type locality for species
  • † Oliva spicata
• Olivella
  • † Olivella baetica
  • † Olivella biplicata
  • † Olivella gracilis
  • † Olivella mathewsoni
  • † Olivella mathewsonii
  • † Olivella pedroana
  • † Olivella santana – type locality for species
• † Omomys
  • † Omomys carteri – or unidentified comparable form
• Oncorhynchus

  • 

    Life restoration of a school of the Miocene-Pleistocene Oncorhynchus rastrosus , or saber-toothed salmon

    † Oncorhynchus rastrosus
• Ondatra
  • † Ondatra idahoensis
  • † Ondatra minor
• Oneirodes
• Onthophagus
  • † Onthophagus everestae – type locality for species
• Onychomys
  • † Onychomys gidleyi
  • † Onychomys torridus
• Ophiodermella
  • † Ophiodermella graciosana
  • † Ophiodermella inermis
• † Ophiomys
  • † Ophiomys parvus
• † Opisima – tentative report
  • † Opisima pacifica – or unidentified comparable form
• † Opisthonema
  • † Opisthonema palosverdensis – type locality for species
• Oreamnos
  • † Oreamnos americanus
• Oreortyx
  • † Oreortyx picta
• Orthemis
  • † Orthemis ferruginea
• Orthodon
• † Osbornodon
  • † Osbornodon fricki

• 

  Life restoration of the Miocene pseudo-toothed bird Osteodontornis

  † Osteodontornis – type locality for genus
  • † Osteodontornis orri – type locality for species
• Ostrea
  • † Ostrea angelica
  • † Ostrea atwoodii
  • † Ostrea bourgeosi
  • † Ostrea conchaphila
  • † Ostrea hertleini
  • † Ostrea lincolnensis – or unidentified related form
  • † Ostrea lurida
  • † Ostrea subtitan
  • † Ostrea weaveri

• 

  Fossilized teeth of the Paleocene–Miocene shark Otodus

  † Otodus
  • † Otodus angustidens
  • † Otodus megalodon
• † Ottoceros
  • † Ottoceros peacevalleyensis – type locality for species
• Otus
  • † Otus asio
• † Ourayia
• Ovibos
  • † Ovibos moschatus
• Ovis
  • † Ovis canadensis
• † Oxyrhina
  • † Oxyrhina crassa
• † Oxyura

  • 

    A living Oxyura jamaicensis , or ruddy duck

    † Oxyura jamaicensis
• † Ozymandias – type locality for genus
  • † Ozymandias gilberti – type locality for species

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Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
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• U
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• W
• X
• Y
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• † Pachycrommium
  • † Pachycrommium clarki
• † Paciculus
• † Pacifichelys
  • † Pacifichelys hutchisoni – type locality for species
• † Pacipecten
  • † Pacipecten discus
  • † Pacipecten pabloensis – or unidentified comparable form
• † Palaeolagus
• † Palaeolama
  • † Palaeolama mirifica – or unidentified related form
• † Palaeopsammia
  • † Palaeopsammia zitteli
• † Palaeoxantusia
  • † Palaeoxantusia allisoni
  • † Palaeoxantusia kyrentos

• 

  Restoration of the Miocene aquatic mammal Paleoparadoxia

  † Paleoparadoxia
  • † Paleoparadoxia tabatai
• † Paleosula – type locality for genus
  • † Paleosula stocktoni – type locality for species
• Palpomyia – type locality for genus
  • † Palpomyia freyi – type locality for species
  • † Palpomyia multispinosa – type locality for species
  • † Palpomyia ryshkoffi – type locality for species
  • † Palpomyia shilo – type locality for species
• Pandora
  • † Pandora punctata
  • † Pandora wardiana
• † Panolax
  • † Panolax sanctaefidei
• Panomya
  • † Panomya ampla
• Panopea
  • † Panopea abrupta
  • † Panopea estrellana – or unidentified related form
  • † Panopea ramonensis
  • † Panopea smithii
  • † Panopea tenuis
• Panthera

  • 

    A living Panthera leo , or lion

    † Panthera leo
  • † Panthera onca – or unidentified comparable form
• † Parabalaenoptera – type locality for genus
  • † Parabalaenoptera baulinensis – type locality for species
• Paraconcavus
  • † Paraconcavus margaritanus
  • † Paraconcavus pacificus
• † Paracontogenys
  • † Paracontogenys estesi
• † Paracosoryx
  • † Paracosoryx alticornis
  • † Paracosoryx furlongi
• † Paraculicoides – type locality for genus
  • † Paraculicoides rouseae – type locality for species
• Paracyathus
  • † Paracyathus pedroensis – type locality for species
  • † Paracyathus stearnsii
• † Paracynarctus
  • † Paracynarctus kelloggi
• † Paradjidaumo
  • † Paradjidaumo reynoldsi – type locality for species
• † Paradomnina
  • † Paradomnina relictus – or unidentified comparable form
• † Parafundulus
  • † Parafundulus erdisi

• 

  Fossilized skull of the Miocene horse Parahippus

  † Parahippus
  • † Parahippus maxsoni – type locality for species
  • † Parahippus pawniensis
• † Parahyus
• † Paralichthyes
• Paralichthys – type locality for genus
  • † Paralichthys antiquus
• † Paramerychyus
  • † Paramerychyus harrisonensis
  • † Paramerychyus relictus
• † Paramiolabis
  • † Paramiolabis minutus – type locality for species
  • † Paramiolabis singularis – or unidentified comparable form
  • † Paramiolabis taylori
  • † Paramiolabis tenuis

• 

  Fossilized skeleton of the Pliocene-Pleistocene ground sloth Paramylodon

  † Paramylodon
  • † Paramylodon harlani
• † Paramys
  • † Paramys compressidens – or unidentified comparable form
  • † Paramys leptodus – or unidentified comparable form
• † Parapavo
  • † Parapavo californica
  • † Parapavo californicus
• † Parapliohippus
  • † Parapliohippus carrizoensis – type locality for species

• 

  Life restoration of the Miocene-Pliocene dolphin Parapontoporia (top)

  † Parapontoporia
  • † Parapontoporia sternbergi – type locality for species
  • † Parapontoporia wilsoni – type locality for species
• † Parasauromalus
  • † Parasauromalus olseni
• Paraseraphs
  • † Paraseraphs erraticus
• † Parastylotermes
  • † Parastylotermes calico – type locality for species
  • † Parastylotermes frazieri – type locality for species
• † Paratomarctus
  • † Paratomarctus temerarius
• † Pareumys
  • † Pareumys grangeri
  • † Pareumys milleri

• 

  Life restoration of the Miocene baleen whale Parietobalaena and calf

  † Parietobalaena
  • † Parietobalaena securis – type locality for species
• † Paromomys
  • † Paromomys depressidens
• † Paronychomys
• † Parribacus
  • † Parribacus caesius – type locality for species
• Parvamussium
• † Parvicornus – type locality for genus
  • † Parvicornus occidentalis – type locality for species
• Parvilucina
  • † Parvilucina approximata
  • † Parvilucina tenuisculpta
• † Parvisipho – tentative report
  • † Parvisipho meganosensis – type locality for species

• 

  Shell of a Patelloida limpet

  Patelloida
  • † Patelloida tejonensis
  • † Patelloida triquetrus
• Patinopecten
  • † Patinopecten caurinus
  • † Patinopecten coosensis
  • † Patinopecten healeyi
  • † Patinopecten healyi
  • † Patinopecten lohri
  • † Patinopecten propatulus
• † Patriolestes
  • † Patriolestes novaceki – type locality for species
• † Pauromys
  • † Pauromys lillegraveni – type locality for species
• † Pecoripeda

• 

  Pecten

  Pecten
  • † Pecten bellus
  • † Pecten bowersi
  • † Pecten dickersoni
  • † Pecten estrellanis
  • † Pecten magnolia
  • † Pecten nevadensis
  • † Pecten perrini
  • † Pecten sespeensis
• †Pedalion
  • † Pedalion panzana – or unidentified comparable form
• † Pediomeryx
  • † Pediomeryx hemphillensis
• † Pedipes
  • † Pedipes liratus
  • † Pedipes unisulcatus
• † Pelagiarctos – type locality for genus
  • † Pelagiarctos thomasi – type locality for species

• 

  Reconstructive illustration of a fossilized skull of the Oligocene-Pleistocene pseudo-toothed bird Pelagornis , with close-up insets of its pseudo-teeth

  † Pelagornis
• Pelecanus
  • † Pelecanus erythrorhynchus – or unidentified comparable form
  • † Pelecanus occidentalis
• † Peltosaurus
  • † Peltosaurus macrodon – type locality for species
• Penitella
  • † Penitella penita
• † Peraceras
  • † Peraceras superciliosum
• † Peradectes
  • † Peradectes californicus
• † Periaster
• Pericosmus
• † Peridiomys
  • † Peridiomys oregonensis – or unidentified comparable form

• 

  Interior of the shell of a Periglypta venus clam

  Periglypta
  • † Periglypta multicostata
• Periploma
  • † Periploma planiuscula
  • † Periploma stewartvillensis – type locality for species
• † Peripolocetus – type locality for genus
  • † Peripolocetus vexillifer – type locality for species
• † Perissitys
  • † Perissitys stewarti
• † Perissolax
  • † Perissolax blakei
  • † Perissolax tricarinatus
• † Perognathoides
  • † Perognathoides eurekensis

• 

  A living Perognathus pocket mouse

  Perognathus
  • † Perognathus furlongi
  • † Perognathus minutus
• Peromyscus
  • † Peromyscus baumgartneri
  • † Peromyscus boylei
  • † Peromyscus complexus – type locality for species
  • † Peromyscus dentalis
  • † Peromyscus hagermanensis
  • † Peromyscus irvingtonensis – type locality for species
  • † Peromyscus maximus – type locality for species
  • † Peromyscus truei – or unidentified comparable form
• † Perse
  • † Perse lincolnensis
• Persea
  • † Persea coalingensis
  • † Persea praelingue
  • † Persea pseudocarolinensis

• 

  Fossilized shell of the Oligocene-modern conch sea snail Persististrombus

  Persististrombus
  • † Persististrombus obliteratus – type locality for species
• † Petauristodon
  • † Petauristodon jamesi
  • † Petauristodon mathewsi
  • † Petauristodon minimus
  • † Petauristodon uphami
• Petricola
  • † Petricola carditoides
  • † Petricola cognata
  • † Petricola denticulata
  • † Petricola parallela
• Petrophyllia
  • † Petrophyllia clarki
  • † Petrophyllia weaveri
• † Pewelagus
  • † Pewelagus dawsonae
• Phacoides
  • † Phacoides actulineatus
  • † Phacoides sactaecrucis – tentative report
• Phalacrocorax

  • 

    A living Phalacrocorax auritus , or double-crested cormorant

    † Phalacrocorax auritus
  • † Phalacrocorax femoralis – type locality for species
  • † Phalacrocorax kennelli – type locality for species
  • † Phalacrocorax pelagicus
  • † Phalacrocorax penicillatus
  • † Phalacrocorax penincillatus
  • † Phalacrocorax penincullatus
  • † Phalacrocorax rogersi – type locality for species
• Phalaropus
  • † Phalaropus fulicaria
  • † Phalaropus lobatus
• † Phanaeus
  • † Phanaeus labreae – type locality for species
• † Phelosaccomys
  • † Phelosaccomys shotwelli – type locality for species
• † Phenacolemur
  • † Phenacolemur shifrae

• 

  Illustration of a fossilized skull in multiple views of the Oligocene-Miocene bone-crushing dog Phlaocyon

  † Phlaocyon
  • † Phlaocyon taylori
• † Phlepsius
  • † Phlepsius weissmanae – type locality for species
• Phloeodes
  • † Phloeodes diabolicus
  • † Phloeodes plicatus
• † Phoberogale
  • † Phoberogale shareri – type locality for species
• Phoca
  • † Phoca vitulina – or unidentified comparable form
• Phocoena – or unidentified comparable form
• † Phoebastria
  • † Phoebastria albatrus – type locality for species
  • † Phoebastria anglica – type locality for species

• 

  Two Phoenicopterus , or flamingos

  Phoenicopterus – or unidentified comparable form
• Pholadidea
• Pholadomya
  • † Pholadomya mounti
  • † Pholadomya nasuta
• Pholas
  • † Pholas gabbi
• Phos
  • † Phos blakianus – or unidentified comparable form
  • † Phos dumbleanus
• † Photinia
  • † Photinia miocenica

• 

  A living Phrynosoma , or horned lizard

  Phrynosoma
• † Phyllites
  • † Phyllites californica
  • † Phyllites coalingensis
  • † Phyllites cordiaefolia – type locality for species
  • † Phyllites daturaefolia – type locality for species
  • † Phyllites domenginensis
  • † Phyllites ellipticus
  • † Phyllites laurinea
  • † Phyllites temblorensis
• Phyllonotus
  • † Phyllonotus hippocastanum
  • † Phyllonotus radix

• 

  A live individual of Physa marmorata

  Physa
• † Physiculua
• Phytocrene
  • † Phytocrene sordida
• Picea
  • † Picea lahontense
  • † Picea magna
  • † Picea sonomensis
• † Pimelometopodon
  • † Pimelometopodon pulchrum – or unidentified comparable form
• Pimelometopon
  • † Pimelometopon pulchrum
• Pinna
  • † Pinna alamedaensis
  • † Pinna latrania – type locality for species
  • † Pinna lewisi
  • † Pinna llajasensis – type locality for species
  • † Pinna mendenhalli – type locality for species
• † Pinnarctidion – type locality for genus
  • † Pinnarctidion bishopi – type locality for species
• Pinus
  • † Pinus carmelensis – type locality for species
  • † Pinus muricata
  • † Pinus prelambertiana – or unidentified comparable form
  • † Pinus radiata
  • † Pinus sturgisii
  • † Pinus temblorensis
• Piranga
  • † Piranga ludoviciana
• † Piscolithax

• 

  Shell of a Pitar venus clam

  Pitar
  • † Pitar avenalensis – tentative report
  • † Pitar behri
  • † Pitar california – or unidentified comparable form
  • † Pitar californiana
  • † Pitar campi – or unidentified comparable form
  • † Pitar dalli
  • † Pitar joaquinensis
  • † Pitar newcombianus
  • † Pitar quadratus
  • † Pitar stantoni – or unidentified comparable form
  • † Pitar tejonensis – or unidentified comparable form
  • † Pitar uvasana
  • † Pitar uvasanus
• † Pithanodelphis
• † Pithanotaria – type locality for genus
  • † Pithanotaria starri – type locality for species
• Pituophis

  • 

    A living Pituophis melanoleucus , or pine snake

    † Pituophis melanoleucus
• Pitymys
  • † Pitymys mcnowni – or unidentified comparable form
• Placunanomia
  • † Placunanomia granti
• Planularia
  • † Planularia caribbeana
• † Platanophyllum
  • † Platanophyllum angustiloba
  • † Platanophyllum whitenyi
  • † Platanophyllum whitneyi
• Platanus
  • † Platanus angustilobus – type locality for species
  • † Platanus appendiculata
  • † Platanus coloradensis
  • † Platanus dissecta – or unidentified comparable form
  • † Platanus paucidentata

• 

  Restoration of a herd of alarmed Miocene-Pleistocene peccaries of the genus Platygonus . Charles R. Knight (1922).

  † Platygonus
  • † Platygonus bicalcaratus
  • † Platygonus vetus
• † Platylithax – type locality for genus
  • † Platylithax robusta – type locality for species
• Platynus
  • † Platynus funebris – or unidentified comparable form
• Platyodon
  • † Platyodon cancellata
  • † Platyodon cancellatus
• † Platyoptera
  • † Platyoptera pacifica
• Platytrochus
  • † Platytrochus diabloensis – type locality for species
  • † Platytrochus merriami – type locality for species
• † Plectina
  • † Plectina garzaensis
  • † Plectina ruthenica – or unidentified comparable form
• Plectofrondicularia
  • † Plectofrondicularia kerni
  • † Plectofrondicularia miocenica
  • † Plectofrondicularia packardi
  • † Plectofrondicularia trinitatensis
  • † Plectofrondicularia vaughani
• † Plectrites
  • † Plectrites classeni
• Plegadis
  • † Plegadis chihi
• † Pleiolama
  • † Pleiolama vera

• 

  Life restoration of the Paleocene-Eocene primate Plesiadapis

  † Plesiadapis
  • † Plesiadapis anceps – or unidentified comparable form
  • † Plesiadapis churchilli – or unidentified comparable form
• † Plesiogulo
  • † Plesiogulo lindsayi
  • † Plesiogulo marshalli
• Pleurofusia
  • † Pleurofusia fresnoensis
  • † Pleurofusia lindavistaensis – or unidentified related form
• † Pleuroncodes
• † Pleuronichthys
  • † Pleuronichthys veliger
• † Pliauchenia
  • † Pliauchenia magnifontis – or unidentified comparable form
• † Plioceros
• † Pliocyon
  • † Pliocyon medius

• 

  Fossilized skull of the Miocene horse Pliohippus

  † Pliohippus
  • † Pliohippus coalingensis – type locality for species
  • † Pliohippus fairbanksi – type locality for species
  • † Pliohippus spectans – tentative report
• † Pliometanastes
  • † Pliometanastes protistus
• † Plionarctos
  • † Plionarctos edensis – type locality for species
• † Plionictis
  • † Plionictis ogygia – or unidentified comparable form

• 

  Life restoration of the Miocene walrus Pliopedia

  † Pliopedia – type locality for genus
  • † Pliopedia pacifica – type locality for species
• † Pliotaxidea
  • † Pliotaxidea garberi – type locality for species
• † Pliotomodon
  • † Pliotomodon primitivus – type locality for species
• † Plithocyon
  • † Plithocyon barstowensis
• † Plotopterum – type locality for genus
  • † Plotopterum joaquinensis – type locality for species
• Pluvialis
  • † Pluvialis squatarola
• Pneumatophorus
  • † Pneumatophorus grex – or unidentified comparable form
• † Poabromylus – tentative report
  • † Poabromylus robustus

• 

  Living Pocillopora , or cauliflower coral

  Pocillopora
• Podiceps
  • † Podiceps arndti
  • † Podiceps auritus
  • † Podiceps discors
  • † Podiceps nigricolis
  • † Podiceps parvus
  • † Podiceps subparvus
• Podilymbus
  • † Podilymbus podiceps
• Pododesmus
  • † Pododesmus macrochisma
• † Poebrodon
  • † Poebrodon californicus – type locality for species

• 

  Illustration of a fossilized skull of the Oligocene false faber-toothed cat Pogonodon

  † Pogonodon
  • † Pogonodon brachyops
• Polinices
  • † Polinices – type locality for species informal
  • † Polinices draconis
  • † Polinices horni – or unidentified comparable form
  • † Polinices hornii
  • † Polinices lewisii
  • † Polinices pinyonensis – or unidentified comparable form
  • † Polinices recluzianys
  • † Polinices rectus – or unidentified related form
  • † Polinices susanaensis
  • † Polinices uber
  • † Polinices washingtonensis – or unidentified comparable form
• Polydora

• 

  Exterior of the shell of a Polymesoda basket clam

  Polymesoda
  • † Polymesoda tenuis – or unidentified comparable form
• Polystira
  • † Polystira barretti
• † Pongamia
  • † Pongamia ovata – type locality for species
• † Pontolis – or unidentified comparable form
  • † Pontolis magnus
• Populus
  • † Populus alexanderii
  • † Populus bonhamii
  • † Populus coalingensis
  • † Populus garberii
• Porichthys
  • † Porichthys myriaster

  • 

    A modern Porichthys notatus , or plainfin midshipman

    † Porichthys notatus
• Porites
  • † Porites carrizensis – type locality for species
• † Portunites
  • † Portunites insculpta
• † Potamides
  • † Potamides carbonica – or unidentified comparable form
  • † Potamides sespeensis
• † Praemancalla – type locality for genus
  • † Praemancalla lagunensis – type locality for species
• † Presbychen – type locality for genus
  • † Presbychen abavus – type locality for species
• † Presbymys
  • † Presbymys lophatus – type locality for species
• Priene
  • † Priene amoldi
  • † Priene oregonensis
  • † Priene scotiaensis
• Prionace

  • 

    A living Prionace glauca , or blue shark

    † Prionace glauca
• † Priscoficus
  • † Priscoficus caudata
• † Priscofusus
  • † Priscofusus carlsoni – tentative report
  • † Priscofusus hecoxi
  • † Priscofusus lincolnensis
  • † Priscofusus robustus
• † Pristichampsus
• Pristiophorus
• † Pristophorus
• † Proboscipeda
• † Procamelus
  • † Procamelus grandis – or unidentified comparable form
• † Procymophyes – type locality for genus
  • † Procymophyes lithax – type locality for species
• † Procynodictis
  • † Procynodictis progressus
• Procyon
  • † Procyon lotor
  • † Procyon psora
• † Prodipodomys
  • † Prodipodomys idahoensis
  • † Prodipodomys riversidensis – type locality for species
  • † Prodipodomys timoteoensis – type locality for species
• † Prodipoides
  • † Prodipoides lecontei – type locality for species
• Progabbia
• † Proharrymys – or unidentified comparable form
• † Proheteromys
  • † Proheteromys maximus
  • † Proheteromys sulculus
• † Promartes
• † Pronotolagus
  • † Pronotolagus apachensis – or unidentified comparable form
• † Protadjidaumo
• † Protanthias – type locality for genus
  • † Protanthias fossilis – type locality for species
• † Protepicyon
  • † Protepicyon raki – type locality for species
• † Proterixoides
  • † Proterixoides davisi – type locality for species
• † Prothomomys
  • † Prothomomys warrenensis – type locality for species

• 

  Life restoration of the Eocene brontothere mammal Protitanops

  † Protitanops
  • † Protitanops curryi – type locality for species
• † Protoarrenurus
  • † Protoarrenurus convergens – type locality for species
• † Protochlorotettix – type locality for genus
  • † Protochlorotettix calico – type locality for species
• † Protohepialus – type locality for genus
  • † Protohepialus comstocki – type locality for species
• † Protolabis
  • † Protolabis barstowensis – type locality for species
• † Protomarctus
  • † Protomarctus optatus
• † Protoreodon
  • † Protoreodon pacificus – type locality for species
  • † Protoreodon parvus – or unidentified comparable form
  • † Protoreodon pumilus
  • † Protoreodon transmontanus
  • † Protoreodon walshi
• † Protosciurus
  • † Protosciurus tecuyensis
• † Protosegestes – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Protosegestes lloydi – type locality for species
• † Protospermophilus
  • † Protospermophilus quatalensis – type locality for species
• † Protostrix
  • † Protostrix californiensis – type locality for species
• † Protosurcula – tentative report
• Protothaca
  • † Protothaca staleyi
• † Protothore – type locality for genus
  • † Protothore explicata – type locality for species

• 

  Illustration of a fossilized skull of the Eocene camel Protylopus

  † Protylopus
  • † Protylopus pearsonensis – type locality for species
  • † Protylopus petersoni – or unidentified comparable form
  • † Protylopus robustus – type locality for species
  • † Protylopus stocki – type locality for species
• Proximitra – tentative report
  • † Proximitra cretacea
• Prunus
  • † Prunus turlockensis
• Psammacoma
  • † Psammacoma acolasta
  • † Psammacoma arctata
  • † Psammacoma yoldiformis
• Psammotreta
  • † Psammotreta dombei
  • † Psammotreta obesa
  • † Psammotreta rostellata
  • † Psammotreta viridotincta

• 

  Hypothetical restoration of the Oligocene-Pliocene sea turtle Psephophorus

  † Psephophorus
  • † Psephophorus calvertensis – or unidentified comparable form
• † Pseudaelurus
  • † Pseudaelurus intrepidus
  • † Pseudaelurus marshi
• † Pseudoblastomeryx
  • † Pseudoblastomeryx advena
• Pseudochama
  • † Pseudochama exogyra
• † Pseudoglandulina
  • † Pseudoglandulina conica
  • † Pseudoglandulina ovata
  • † Pseudoglandulina turbinata
• Pseudoliva
  • † Pseudoliva dilleri
  • † Pseudoliva inornata – or unidentified comparable form

• 

  A living Pseudomelatoma sea snail

  Pseudomelatoma
  • † Pseudomelatoma penicillata
• † Pseudoparablastomeryx
  • † Pseudoparablastomeryx scotti – or unidentified comparable form
• † Pseudoparella
• † Pseudoperrisolax
  • † Pseudoperrisolax blakei
• † Pseudoseriola – type locality for genus
  • † Pseudoseriola gillilandi – type locality for species
• † Pseudotheridomys
  • † Pseudotheridomys cuyamensis – type locality for species
• † Pseudotomus
  • † Pseudotomus californicus
  • † Pseudotomus littoralis – type locality for species

• 

  Living Pseudotsuga , or Douglas firs

  † Pseudotsuga
  • † Pseudotsuga sonomensis
• Pteria
  • † Pteria berryi
  • † Pteria hertleini
  • † Pteria pellucida
• † Pteroplatea
  • † Pteroplatea lapislutosa – type locality for species
• Pteropurpura
  • † Pteropurpura festiva
  • † Pteropurpura trialatus
• Pterostichus
• Pterynotus
  • † Pterynotus petri
  • † Pterynotus washingtonicus

• 

  Illustration of a fossilized skull of the Paleocene multituberculate mammal Ptilodus

  † Ptilodus
• Ptinus
  • † Ptinus priminidi – type locality for species
• Ptychoramphus
  • † Ptychoramphus aleuticus
• Puffinus
  • † Puffinus barnesi – type locality for species
  • † Puffinus calhouni – type locality for species
  • † Puffinus diatomicus – type locality for species
  • † Puffinus felthami – type locality for species
  • † Puffinus gilmorei – type locality for species
  • † Puffinus gresus
  • † Puffinus grisesus
  • † Puffinus griseus
  • † Puffinus inceptor – type locality for species
  • † Puffinus kanakoffi
  • † Puffinus mitchelli – type locality for species
  • † Puffinus opisthomelas
  • † Puffinus priscus – type locality for species
  • † Puffinus tenuirostris
• Pullenia
  • † Pullenia eocenica
  • † Pullenia quinqueloba

• 

  A living Puma

  † Puma
  • † Puma concolor – type locality for species
• Puncturella
  • † Puncturella galeata
  • † Puncturella multistriata
• Pupillaria
  • † Pupillaria optabilis
  • † Pupillaria pupilla
• Purpura
  • † Purpura barbarensis
  • † Purpura festiva
  • † Purpura lima
  • † Purpura lurida
  • † Purpura milicentana – type locality for species
  • † Purpura nuttallii
  • † Purpura poulsoni
  • † Purpura topangensis

• 

  Shell of a Pusula false cowrie sea snail

  Pusula
  • † Pusula californiana
  • † Pusula solandri
• Pycnodonte
  • † Pycnodonte eldridgei
  • † Pycnodonte heermanni
  • † Pycnodonte pacifica – or unidentified comparable form
  • † Pycnodonte stewarti – or unidentified related form
• Pyramidella
  • † Pyramidella adamsi – or unidentified comparable form
  • † Pyramidella mucronis
  • † Pyramidella preblei
• Pyrene
  • † Pyrene carinata

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• † Quercophyllum
  • † Quercophyllum platanoides – type locality for species

• 

  A living Quercus , or oak tree

  Quercus
  • † Quercus acorns
  • † Quercus coalingensis
  • † Quercus dispersa
  • † Quercus distincta
  • † Quercus domenginensis
  • † Quercus douglasoides
  • † Quercus eoxalapensis – type locality for species
  • † Quercus hannibali
  • † Quercus hannibalii
  • † Quercus lakevillensis
  • † Quercus merriami
  • † Quercus nevadensis
  • † Quercus pasadorii – type locality for species
  • † Quercus pliopalmerii
  • † Quercus pollardiana
  • † Quercus pseudolyrata
  • † Quercus remingtonii
  • † Quercus sayana
  • † Quercus simulata
  • † Quercus temblorensis
  • † Quercus wislizenoides

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• Raja
• † Rakomeryx
  • † Rakomeryx sinclairi – type locality for species
• Rallus
  • † Rallus limicola

• 

  Life restoration of the Miocene-Pliocene pronghorn Ramoceros and Cosoryx . Robert Bruce Horsfall (1913).

  † Ramoceros
  • † Ramoceros brevicornis – type locality for species
• † Rana
• † Ranellina
  • † Ranellina pilsbry – or unidentified related form
• Raninoides
  • † Raninoides slaki – type locality for species
• † Rapamys
  • † Rapamys fricki – type locality for species
• Rapana
  • † Rapana vaquerosensis
• † Rectoguembelina
  • † Rectoguembelina trinitatensis – or unidentified comparable form

• 

  A living Recurvirostra , or avocet

  Recurvirostra
• Reithrodontomys
• † Reithroparamys – or unidentified comparable form
• Reophax
  • † Reophax pilulifer – or unidentified comparable form
• † Repomys
  • † Repomys gustelyi – type locality for species
  • † Repomys maxumi – type locality for species
• Reticulitermes
  • † Reticulitermes laurae – type locality for species
  • † Reticulitermes tibalis
• Reticutriton
  • † Reticutriton elsmerensis
• † Retipirula
  • † Retipirula crassitesta

• 

  A living Retusa barrel bubble sea snail

  Retusa
  • † Retusa carinata
  • † Retusa culcitella
  • † Retusa harpa
  • † Retusa tantilla
• † Reynoldsomys
  • † Reynoldsomys timoteoensis – type locality for species
• † Rhabdammina
  • † Rhabdammina eocenica
• † Rhamnidium
  • † Rhamnidium chaneyi
• † Rhamnus
  • † Rhamnus calyptus
  • † Rhamnus moragensis
  • † Rhamnus plenus
  • † Rhamnus precalifornica
• † Rhomarchus – type locality for genus
  • † Rhomarchus ensiger – type locality for species
• † Rhomurus
  • † Rhomurus fulcratus
• Rhus
  • † Rhus diablana
  • † Rhus mixta

• 

  Restoration of the Miocene-Pliocene elephant relative Rhynchotherium

  † Rhynchotherium
  • † Rhynchotherium falconeri
• † Rhynconella – tentative report
• † Rhyssomatus
  • † Rhyssomatus miocenae – type locality for species
• † Rhythmias
  • † Rhythmias gaviotae – type locality for species
  • † Rhythmias slarri
• Rimella
  • † Rimella macilentus
  • † Rimella supraplicata
  • † Rimella supraplicatus
• Rissa
  • † Rissa estesi – type locality for species
  • † Rissa tridactyla
• Rissoina
  • † Rissoina pleistocena

• 

  Flowers of a living Robinia

  † Robinia
  • † Robinia californica
• Robulus
  • † Robulus alatolimbatus
  • † Robulus arcuatostriatus
  • † Robulus clericii
  • † Robulus clypeiformis – or unidentified comparable form
  • † Robulus inornatus
  • † Robulus insuetus
  • † Robulus kincaidi
  • † Robulus mayi
  • † Robulus mexicanus
  • † Robulus nikobarensis
  • † Robulus propinquus
  • † Robulus simplex
  • † Robulus terryi – or unidentified comparable form
  • † Robulus warmani
  • † Robulus welchi
• † Rogenio
  • † Rogenio bowersi
  • † Rogenio solitudinis
  • † Rogenio vanclevei – type locality for species
• † Rotularia
  • † Rotularia tejonense
• † Russellagus

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Contents

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• 

  Living Sabal , or palmettos

  Sabal
  • † Sabal miocenica
• † Sabalites
  • † Sabalites californicus
• Saccella
  • † Saccella alaeformis
  • † Saccella gabbi
  • † Saccella taphria
• Sagmatias
• † Sainguinolaria
  • † Sainguinolaria toulai – or unidentified comparable form
• Salix
  • † Salix boisiensis
  • † Salix edenensis
  • † Salix hesperia
  • † Salix ionensis
  • † Salix laevigatoides
  • † Salix pelviga
  • † Salix storeyana
  • † Salix wildcatensis
• † Salumiphocaena
  • † Salumiphocaena stocktoni – type locality for species

• 

  Fossilized skeleton of the Eocene monitor lizard Saniwa

  † Saniwa
  • † Saniwa ensidens – type locality for species
• † Sapindus
  • † Sapindus oklahomensis
• Saracenaria – tentative report
  • † Saracenaria acutiauricularis – or unidentified comparable form
• † Sarda
  • † Sarda stockii – type locality for species
• Sassia
  • † Sassia bilineata
• Saxidomus
  • † Saxidomus gigantea
  • † Saxidomus giganteus
  • † Saxidomus nuttalli
  • † Saxidomus vaquerosensis
• † Saxolucina

• 

  Fossilized teeth of the Neogene sperm whale Scaldicetus

  † Scaldicetus
  • † Scaldicetus grandis – or unidentified comparable form
• † Scalopoides
• Scapanus
  • † Scapanus latimanus
  • † Scapanus malatinus
  • † Scapanus shultzi – type locality for species
• Scaphander
  • † Scaphander costatus
  • † Scaphander jugularis
• Scapharca
  • † Scapharca obispoana
• Scaphinotus
  • † Scaphinotus interruptus

• 

  Fossilized jaw and teeth of the Miocene horse Scaphohippus

  † Scaphohippus
  • † Scaphohippus intermontanus – type locality for species
  • † Scaphohippus sumani – type locality for species
• Sceloporus
  • † Sceloporus occidentalis
• † Scenopagus
  • † Scenopagus curtidens
  • † Scenopagus priscus – or unidentified comparable form
• † Schaubeumys
• † Schedocardia – tentative report
• † Schistomerus – type locality for genus
  • † Schistomerus californense – type locality for species
• Schizaster
  • † Schizaster diabloensis
  • † Schizaster lecontei
  • † Schizaster martinezensis
• † Schizodontomys
• † Sciuravus
  • † Sciuravus powayensis
• Sciurus
• Scomber
  • † Scomber sanctaemonicae
• † Scomberesox
  • † Scomberesox acutillus – type locality for species
  • † Scomberesox edwardsi – type locality for species

• 

  Illustration of a living Scopelogadus ridgehead

  Scopelogadus
  • † Scopelogadus mizolepis
• † Scutella
  • † Scutella fairbanksi
  • † Scutella fairbanski
  • † Scutella merriami
  • † Scutella norrisi
  • † Scutella vaquerosensis
• † Scutellaster

• 

  Group of living Scyliorhinus catsharks

  Scyliorhinus
• † Scymnorhinus
  • † Scymnorhinus occidentalis
• Searlesia
  • † Searlesia dira
• † Sebastavus – type locality for genus
  • † Sebastavus vertebralis – type locality for species
• † Sebastodes
  • † Sebastodes apostates
  • † Sebastodes haroldi – type locality for species
  • † Sebastodes ineziae
  • † Sebastodes porteousi
  • † Sebastodes porteus
  • † Sebastodes rosae
• Seila
  • † Seila montereyensis
• Semelangulus
  • † Semelangulus tenuilirata
• Semele – tentative report
• Semele
  • † Semele decisa
  • † Semele diabloi
  • † Semele morani
  • † Semele packardi
  • † Semele pulchra
  • † Semele rubropicta
  • † Semele venusta
• Semicassis
  • † Semicassis louella – type locality for species
  • † Semicassis tuberculiformis
• Semicossyphus
• † Semirostrum – type locality for genus
  • † Semirostrum ceruttii – type locality for species
• Septifer
  • † Septifer bifurcatus

• 

  A living Sequoiadendron

  † Sequoiadendron
  • † Sequoiadendron chaneyi
• † Serbelodon
  • † Serbelodon burnhami
• Serica
  • † Serica kanakoffi – type locality for species
• Seriola
  • † Seriola sanctaebarbarae
• Seriphus
  • † Seriphus politus
• Serpula
  • † Serpula coreyi
• Serpulorbis
  • † Serpulorbis llajasensis
• † Sespedectes
  • † Sespedectes singularis – type locality for species
  • † Sespedectes stocki
• † Sespemys
  • † Sespemys thurstoni – type locality for species

• 

  Life restoration of two species of the Oligocene oreodont mammal genus Sespia

  † Sespia
  • † Sespia californica – type locality for species
  • † Sespia nitida
• Siderastrea
  • † Siderastrea clarki – type locality for species
  • † Siderastrea mendenhalli – type locality for species
• Sigmodon
  • † Sigmodon lindsayi
  • † Sigmodon minor
• Sigmoilina – tentative report
• Siliqua
  • † Siliqua lucida
  • † Siliqua media – or unidentified comparable form
  • † Siliqua patula – or unidentified related form
• † Simiacritomys
  • † Simiacritomys whistleri – type locality for species
• † Simidectes
  • † Simidectes medius – or unidentified comparable form
  • † Simidectes merriami – type locality for species
• † Simimeryx
  • † Simimeryx hudsoni – type locality for species
• † Simimys
  • † Simimys landeri – type locality for species
  • † Simimys simplex
• Simomactra
  • † Simomactra dolabriformis
  • † Simomactra falcata
  • † Simomactra planulata
• † Sinomactra
  • † Sinomactra falcata

• 

  Several views of the shell of a Sinum moon snail

  Sinum
  • † Sinum debile – or unidentified comparable form
  • † Sinum obliquum
  • † Sinum scopulosum
• Siphonalia
  • † Siphonalia andersoni
  • † Siphonalia lineata
  • † Siphonalia merriami
  • † Siphonalia sutterensis – or unidentified comparable form
• Skenea
  • † Skenea californica
• † Smilax
  • † Smilax diforma
  • † Smilax labidurommae
  • † Smilax magna – or unidentified comparable form
  • † Smilax remingtonii

• 

  Life restoration of the Pleistocene-Holocene saber-tooth cat Smilodon

  † Smilodon
  • † Smilodon fatalis
  • † Smilodon gracilis
• † Smilodonichthyes
  • † Smilodonichthyes rastrosus
• † Smilodonichthys
• † Smilodonicthyes
  • † Smilodonicthyes rastrosus
• † Smithites – type locality for genus
  • † Smithites elegans – type locality for species
• Solariella
  • † Solariella hartleyensis – type locality for species
  • † Solariella peramabilis
  • † Solariella walkeri – type locality for species

• 

  Modern specimen of the marine bivalve Solemya

  Solemya
  • † Solemya ventricosa
• Solen
  • † Solen curtis – or unidentified comparable form
  • † Solen rosaceus
  • † Solen sicarius
• Solena
  • † Solena conradi
  • † Solena gravidus
  • † Solena lorenzana
  • † Solena parallelus – or unidentified comparable form
  • † Solena perrini
  • † Solena stantoni
  • † Solena subverticala
• Solenastrea
  • † Solenastrea fairbanksi
• Solenosteira
  • † Solenosteira anomala

• 

  A living Sorex , or long-tailed shrew

  Sorex
  • † Sorex leahyi
• Spathipora
• Spermophilus
  • † Spermophilus argonautus
  • † Spermophilus beecheyi
  • † Spermophilus lateralis
• † Sphaeroidina
  • † Sphaeroidina gredalensis
• Sphenia – tentative report
  • † Sphenia meganosensis – type locality for species
• † Sphenophalos – tentative report

• 

  A living Sphyrna hammerhead shark

  Sphyrna
  • † Sphyrna aus
  • † Sphyrna bus
• Spilogale
  • † Spilogale putorius
• † Spirocrypta
  • † Spirocrypta inornata
  • † Spirocrypta pileum
• Spiroglyphus
  • † Spiroglyphus lituella
  • † Spiroglyphus tinajasensis
• Spiroloculina
  • † Spiroloculina lamposa
• Spiroplectammina
  • † Spiroplectammina coreyi – type locality for species
  • † Spiroplectammina eocenica
  • † Spiroplectammina kewi – type locality for species
• Spirotropis
  • † Spirotropis bulimoides
  • † Spirotropis perversa

• 

  Shell of a Spisula , or surf clam

  Spisula
  • † Spisula coosensis
  • † Spisula densatum – type locality for species
  • † Spisula meganosensis – type locality for species
  • † Spisula pabloensis
  • † Spisula packardi
  • † Spisula panzanum
• Spondylus
  • † Spondylus bostrychites
  • † Spondylus calcifer
  • † Spondylus carlosensis
  • † Spondylus perrini
  • † Spondylus vaquerosensis

• 

  A living Squalus , or spurdog

  Squalus
  • † Squalus sericulus
  • † Squalus serriculus
• Squatina
  • † Squatina californica – or unidentified comparable form
  • † Squatina claifornica
  • † Squatina lerichei
• Squilla
  • † Squilla laingae
• † Starrias – type locality for genus
  • † Starrias ischyrus – type locality for species

• 

  Mounted fossilized skeleton of the Pliocene-Pleistocene elephant relative Stegomastodon

  † Stegomastodon
  • † Stegomastodon mirificus – or unidentified comparable form
• Stenella
• † Stenomylus
  • † Stenomylus hitchcocki – or unidentified comparable form
• Stenoplax
  • † Stenoplax conspicua
  • † Stenoplax magdalenensis
• Stephanodiscus
  • † Stephanodiscus asteroides
  • † Stephanodiscus carconensis
  • † Stephanodiscus excentricus
  • † Stephanodiscus hantzchii
  • † Stephanodiscus hantzschii
• † Stephanophyllia
  • † Stephanophyllia californica – type locality for species
  • † Stephanophyllia vacavillensis
• Stercorarius
• Sterna
  • † Sterna neglecta
• † Sternbergia – type locality for genus
  • † Sternbergia waitei – type locality for species
• Sthenictis
• † Stichocassidulina
  • † Stichocassidulina thalmanni
• † Stictocarbo
  • † Stictocarbo kumeyaay – type locality for species
• † Stockia – type locality for genus
  • † Stockia powayensis – type locality for species

• 

  Mounted fossilized skeleton of the fossil pronghorn Stockoceros

  † Stockoceros – or unidentified comparable form
• Stomias
  • † Stomias affinis
• Stramonita
  • † Stramonita biserialis
  • † Stramonita canaliculata
  • † Stramonita imperialis
• † Strepsidura
  • † Strepsidura diabloensis – type locality for species
  • † Strepsidura ficus – tentative report
  • † Strepsidura lincolnensis
• † Streptochetus
  • † Streptochetus californiana – type locality for species

• 

  Fossilized teeth of the Paleocene-Miocene sandshark Striatolamia

  † Striatolamia
  • † Striatolamia macrota
• † Striostrea
  • † Striostrea freudenbergi
• Strioterebrum
  • † Strioterebrum gausapatum
• † Strobilites
  • † Strobilites temblorensis
• Strombiformis
  • † Strombiformis raymondi
• Strombus
  • † Strombus galeatus
  • † Strombus gracilior
• † Strongyliscus – type locality for genus
  • † Strongyliscus robustus – type locality for species
• Strongylocentrotus
• † Strongylodon
  • † Strongylodon falcata
• Strophocardia
  • † Strophocardia megastropha
• Sturnella
  • † Sturnella negecta
• † Stylemys
  • † Stylemys neglectus – type locality for species
• Subcancilla
  • † Subcancilla sulcata

• 

  Life restoration of the Eocene-Oligocene cow-sized rhinoceros Subhyracodon . Charles R. Knight (1890s).

  † Subhyracodon
  • † Subhyracodon kewi
• Succinea
• † Suggrunda
• Sula
  • † Sula clarki – type locality for species
  • † Sula pohli – type locality for species
  • † Sula willetti – type locality for species
• † Sulcocypraea
  • † Sulcocypraea moumieti
• Sulcoretusa
  • † Sulcoretusa xystrum
• Surculites
  • † Surculites aequilateralis
  • † Surculites carpentaria
  • † Surculites carpenteriana
  • † Surculites carpenterianus
  • † Surculites isoformis
  • † Surculites keepi – or unidentified comparable form
  • † Surculites mathewsoni
  • † Surculites mathewsonii
  • † Surculites remondi
  • † Surculites remondii
• † Surculities – tentative report
• † Syllomus – or unidentified comparable form
  • † Syllomus aegyptiacus
• Sylvilagus
  • † Sylvilagus audubonii
  • † Sylvilagus bachmani
  • † Sylvilagus floridanus
  • † Sylvilagus hibbardi
• Syncera
  • † Syncera translucens

• 

  A living Syngnathus pipefish

  Syngnathus
  • † Syngnathus avus – type locality for species
• † Synthiboramphus
  • † Synthiboramphus antiquus
• Synthliboramphus
  • † Synthliboramphus antiquus
  • † Synthliboramphus hypoleucas
  • † Synthliboramphus hypoleucus
  • † Synthliboramphus rineyi – type locality for species
• † Synthliboraramphus
  • † Synthliboraramphus antiquus

T

Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• 

  Flower of a living Tabernaemontana , or milkwood

  † Tabernaemontana
  • † Tabernaemontana chrysophylloides
• Tadorna
  • † Tadorna tadorna
• Tagelus
  • † Tagelus affinis
  • † Tagelus californianus
  • † Tagelus clarki – type locality for species
  • † Tagelus subteres
• Tamias
  • † Tamias ateles – type locality for species
• Tamiasciurus
  • † Tamiasciurus hudsonicus
• Tamiosoma
  • † Tamiosoma gregaria – type locality for species
• † Tanymykter
  • † Tanymykter brachyodontus
• Tapirus
  • † Tapirus californicus
  • † Tapirus haysii
  • † Tapirus merriami – type locality for species
• † Tapochoerus
  • † Tapochoerus egressus – type locality for species
  • † Tapochoerus mcmillini – type locality for species

• 

  Life restoration of the Eocene carnivoran relative Tapocyon

  † Tapocyon
  • † Tapocyon dawsonae – type locality for species
  • † Tapocyon robustus
• † Tapomys
  • † Tapomys tapensis
• Taranis
  • † Taranis incultus
• Taricha
• Taxidea
  • † Taxidea taxus
• Tayassu
  • † Tayassu edensis
• Tegula
  • † Tegula – type locality for species informal
  • † Tegula aureotincta
  • † Tegula eiseni
  • † Tegula ligulata
• † Tejonia
  • † Tejonia lajollaensis – or unidentified comparable form

• 

  Restoration of the Miocene-Pliocene rhinoceros Teleoceras

  † Teleoceras
  • † Teleoceras fossiger
  • † Teleoceras hicksi
  • † Teleoceras mediocronutum
  • † Teleoceras meridianum
• † Teletaceras
  • † Teletaceras mortivallis

• 

  Shell of a Tellina , or tellin

  Tellina
  • † Tellina bodegensis
  • † Tellina cowlitzensis – or unidentified related form
  • † Tellina emacerata
  • † Tellina eugenia
  • † Tellina idae
  • † Tellina kewi
  • † Tellina lebecki – or unidentified comparable form
  • † Tellina martinezensis
  • † Tellina meropsis
  • † Tellina nuculoides
  • † Tellina ocoyana
  • † Tellina oldroydi
  • † Tellina oregonensis
  • † Tellina piercei
  • † Tellina pittsburgensis
  • † Tellina remondii
  • † Tellina soledadensis – or unidentified comparable form
  • † Tellina tehachapi
  • † Tellina undulifera
  • † Tellina vancouverensis – or unidentified comparable form
  • † Tellina wilsoni
• † Temnocyon
  • † Temnocyon subferox – or unidentified comparable form
• Tenagodus
  • † Tenagodus californiensis
• † Tenudomys
  • † Tenudomys bodei

• 

  Life restoration of the Pleistocene bird of prey Teratornis

  † Teratornis
  • † Teratornis merriami
• Terebellum
• Terebra
  • † Terebra albocincta
  • † Terebra californica
  • † Terebra danai
  • † Terebra pedroana
  • † Terebra protexta
  • † Terebra santana – type locality for species
• Terebratalia
  • † Terebratalia batequia – or unidentified related form

• 

  Fossilized shell in two views of the Late Devonian-modern brachiopod Terebratula

  Terebratula
• Terebratulina
  • † Terebratulina tejonensis
  • † Terebratulina tejonensis waringi
• Teredo
• Terminalia
  • † Terminalia estamina
• † Tessarolax – tentative report
  • † Tessarolax inconspicua
• Testudo
• † Testudoolithus – or unidentified comparable form
• † Tetraclaenodon
  • † Tetraclaenodon puercensis
• Tetraclita
• † Tetrameryx
  • † Tetrameryx irvingtonensis – type locality for species
• † Texoceros
  • † Texoceros altidens – or unidentified comparable form
  • † Texoceros edensis – type locality for species
• Thais
  • † Thais carrizoensis
  • † Thais lamellosa
  • † Thais packi

• 

  Life restoration of the Miocene fur seal Thalassoleon

  † Thalassoleon
  • † Thalassoleon macnallyae – type locality for species
  • † Thalassoleon mexicanus
• † Thamnasteria
  • † Thamnasteria sinuata – type locality for species
• Thamnophis
• Thanatophilus
  • † Thanatophilus lapponicus
• † Thelyphonus
  • † Thelyphonus hadleyi – type locality for species
• Thomomys
  • † Thomomys bottae
  • † Thomomys gidleyi
  • † Thomomys leucodon
  • † Thomomys microdon – type locality for species
  • † Thomomys monticola
• † Thouinopsis
  • † Thouinopsis myricaefolia
• Thracia
  • † Thracia pedroana
  • † Thracia sorrentoensis – or unidentified comparable form
  • † Thracia undulata
• Thunnus – type locality for genus
  • † Thunnus starksi – type locality for species
• Thyasira
  • † Thyasira folgeri
• † Thyrsites
  • † Thyrsites kriegeri – type locality for species
• † Ticholeptus
  • † Ticholeptus zygomaticus
• Timoclea
  • † Timoclea picta
• Tinosaurus
  • † Tinosaurus stenodon – or unidentified comparable form
• † Tiphyocetus – type locality for genus
  • † Tiphyocetus temblorensis – type locality for species

• 

  Mounted fossilized skeleton of the Miocene-Pleistocene camel Titanotylopus

  † Titanotylopus
• Tivela
  • † Tivela diabloensis
  • † Tivela gabbi
  • † Tivela inezana
  • † Tivela kelloggensis
  • † Tivela stultorum
• † Tomarctus
  • † Tomarctus brevirostris
  • † Tomarctus hippophaga
  • † Tomarctus hippophagus – or unidentified comparable form
• † Topangasquilla
  • † Topangasquilla gravesi
• Torcula
  • † Torcula inezana
• † Tornatellaea
  • † Tornatellaea pinguis
• Totanus

• 

  Foliage of living Toxicodendron

  † Toxicodendron
  • † Toxicodendron franciscana
• Toxopneustes
  • † Toxopneustes roseus – or unidentified comparable form
• Toxostoma
  • † Toxostoma redivivum
• Trachycardium
  • † Trachycardium procerum
  • † Trachycardium schencki
  • † Trachycardium vaquerosensis
  • † Trachycardium woodringi – type locality for species
• Transennella
  • † Transennella joaquinensis – or unidentified comparable form

• 

  A living Tremarctos , or spectacled bear

  Tremarctos
  • † Tremarctos floridanus
• Tresus
  • † Tresus capax
  • † Tresus nuttallii
  • † Tresus pajaroanus
• Triakis – tentative report
• Trichotropis
  • † Trichotropis cancellata
  • † Trichotropis insignis – or unidentified comparable form
• Tricolia
  • † Tricolia compta
  • † Tricolia pulloides
• † Trigonictis
  • † Trigonictis macrodon
• Trionyx
• Triphora
  • † Triphora pedroana

• 

  A living Triplofusus spindle sea snail

  Triplofusus
  • † Triplofusus princeps
• † Triplopus – tentative report
  • † Triplopus woodi – type locality for species
• Trochammina
  • † Trochammina albertensis
  • † Trochammina palea – type locality for species
• Trochita
  • † Trochita filosa
• Trochocyathus
  • † Trochocyathus crooki
  • † Trochocyathus durhami – type locality for species
  • † Trochocyathus grahami – type locality for species
  • † Trochocyathus imperialis – type locality for species
  • † Trochocyathus nomlandi – type locality for species
  • † Trochocyathus stantoni – type locality for species
• † Trogomys
  • † Trogomys rupinimenthae – type locality for species
• † Trogosus
• Trophon
  • † Trophon carisaensis – or unidentified comparable form
  • † Trophon eucymata
  • † Trophon fleenerensis
  • † Trophon gillulyi
  • † Trophon hernensis – or unidentified comparable form
  • † Trophon kernensis
  • † Trophon multicostatus
  • † Trophon pacificus
• † Trossulus – tentative report
  • † Trossulus exoletus
• † Trypanotoma
  • † Trypanotoma stocki
• † Tubulodon – or unidentified comparable form
• † Tubulostium – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Tubulostium tejonensis

• 

  Shell of a Tucetona bittersweet clam

  Tucetona
  • † Tucetona multicostata
• Tudicla
  • † Tudicla blakei
• † Tunita – type locality for genus
  • † Tunita octavia – type locality for species
• † Turbinolia
  • † Turbinolia capayasensis – type locality for species
  • † Turbinolia clarki – type locality for species
  • † Turbinolia dickersoni – type locality for species
  • † Turbinolia imbulata
  • † Turbinolia pusillanima – type locality for species
• Turbonilla
  • † Turbonilla aepynota
  • † Turbonilla almo
  • † Turbonilla asser
  • † Turbonilla canfieldi
  • † Turbonilla carpenteri
  • † Turbonilla keepi

  • 

    Illustration of the shell of a Turbonilla laminata pyram shell sea snail

    † Turbonilla laminata
  • † Turbonilla lowei
  • † Turbonilla marshensis – type locality for species
  • † Turbonilla pedroana
  • † Turbonilla pentalopha
  • † Turbonilla raymondi
  • † Turbonilla regina
  • † Turbonilla stylina
  • † Turbonilla tenuicula
  • † Turbonilla torquata
  • † Turbonilla tridentata
  • † Turbonilla weldi
• Turcica
  • † Turcica caffea
• Turdus
• †Turio
  • † Turio culveri – type locality for species
• Turricula
  • † Turricula cooperi
  • † Turricula merriami
  • † Turricula praeattenuata – or unidentified comparable form
  • † Turricula waringi
• Turris
  • † Turris fresnoensis
  • † Turris perissolaxoides

• 

  Fossilized shells of the Late Jurassic-modern tower snail Turritella

  Turritella
  • † Turritella andersoni
  • † Turritella bosei
  • † Turritella bulwaldana
  • † Turritella buwaldana
  • † Turritella carisaensis
  • † Turritella carrisaensis
  • † Turritella cooperi
  • † Turritella hendoni
  • † Turritella imperialis – type locality for species
  • † Turritella inezana
  • † Turritella inezani
  • † Turritella infragranulata
  • † Turritella lajollaensis – or unidentified comparable form
  • † Turritella lawsoni
  • † Turritella lorenzana – type locality for species
  • † Turritella mariana
  • † Turritella meganosensis – type locality for species
  • † Turritella merriami
  • † Turritella ocoyana
  • † Turritella pachecoensis
  • † Turritella reversa
  • † Turritella stocki
  • † Turritella temblorensis
  • † Turritella uvasana
  • † Turritella variata
  • † Turritella wittichi
• Turritriton
  • † Turritriton gibbosus

• 

  A living Tursiops , or bottlenose dolphin

  Tursiops – or unidentified comparable form
• Typha
  • † Typha lesquereuxii
• Typhis
• Tyto
  • † Tyto alba

U

Contents

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

• Uca
  • † Uca hamlini
• † Uintasorex
  • † Uintasorex montezumicus – type locality for species

• 

  Life restoration of the Eocene mammal Uintatherium

  † Uintatherium
• Ulmus
  • † Ulmus affinis
• † Umbellularia
  • † Umbellularia salicifolia
• † Umpquaia
• Uria
  • † Uria aalgae

  • 

    A pair of living Uria aalge , or common murre

    † Uria aalge
  • † Uria algae
  • † Uria brodkorbi – type locality for species
  • † Uria paleohesperis – type locality for species
• † Uriscus
  • † Uriscus californicus
• † Urobatis
  • † Urobatis halleri
• † Urocitellus
  • † Urocitellus beldingi
• Urocyon
  • † Urocyon californicus
  • † Urocyon cinereoargenteus
  • † Urocyon galushai
• Urolophus
  • † Urolophus halleri – tentative report
• Ursus

  • 

    A living Ursus americanus , or American black bear

    † Ursus americanus
• † Ustatochoerus
  • † Ustatochoerus major
• Uta
  • † Uta stansburiana
• Uvigerina
  • † Uvigerina garzaensis
• † Uvigerinella
  • † Uvigerinella obesa

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• † Valenictus – type locality for genus
  • † Valenictus chulavistensis – type locality for species
  • † Valenictus imperialensis – type locality for species
• Valvulineria
  • † Valvulineria californica
  • † Valvulineria casitasensis
  • † Valvulineria tumeyensis
  • † Valvulineria wilcoxensis – or unidentified comparable form
• † Vanderhoofius
  • † Vanderhoofius coalingensis
• † Vaquerosella
  • † Vaquerosella andersoni
  • † Vaquerosella coreyi
  • † Vaquerosella durhami
  • † Vaquerosella fairbanksi
  • † Vaquerosella merriami
  • † Vaquerosella vaquerosensis
• Vasum
  • † Vasum caestum
• † Vauquelinia
  • † Vauquelinia exigua – type locality for species

• 

  Fossilized shell of the Paleocene-Miocene nerite sea snail Velates

  † Velates
  • † Velates californicus – type locality for species
  • † Velates perversus
• Velutina
  • † Velutina velutina
• Venericardia
  • † Venericardia hornii
  • † Venericardia mulleri
  • † Venericardia planicosta
  • † Venericardia sandiegoensis
• Venus
  • † Venus purpurissata
• Vermicularia
  • † Vermicularia ebunea
• Veromessor
  • † Veromessor andrei
• † Vertipecten
  • † Vertipecten alexclarki – type locality for species
  • † Vertipecten nevadanus
  • † Vertipecten perrini
  • † Vertipecten yneziana – or unidentified related form
• † Viburnum
  • † Viburnum variabilis

• 

  A living Vireo

  † Vireo
• † Virgulina
  • † Virgulina bramlettei
  • † Virgulina bramlettrei
  • † Virgulina dibollensis
• Vitrinella – tentative report
• Volsella
  • † Volsella merriami
  • † Volsella porterensis – or unidentified comparable form

• 

  A living Voluta sea snail

  Voluta
• † Volutilithes
  • † Volutilithes orocopiaensis – type locality for species
• Volutopsius
  • † Volutopsius eurekaensis
• Volvulella
  • † Volvulella cylindrica
• † Vouapa
  • † Vouapa geminifolia – type locality for species
• Vulpes
  • † Vulpes cascadensis
  • † Vulpes kernensis – type locality for species
  • † Vulpes stenognathus
  • † Vulpes velox
• Vulvulina
  • † Vulvulina curta

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• † Washakius
  • † Washakius woodringi – type locality for species
• † Whitneyella
  • † Whitneyella sinuata
• Williamia
  • † Williamia peltoides

• 

  Restoration of the Permian shark Wodnika

  † Wodnika
  • † Wodnika ocoyae – type locality for species
• † Woodburnehyus – type locality for genus
  • † Woodburnehyus grenaderae – type locality for species

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• 

  Fossilized shell of the Late Cretaceous-modern carrier shell sea snail Xenophora

  Xenophora
  • † Xenophora stocki
  • † Xenophora zitteli
• † Xenothrissa – type locality for genus
  • † Xenothrissa aphrasta – type locality for species
• † Xyne – type locality for genus
  • † Xyne grex – type locality for species
• † Xyrinius – type locality for genus
  • † Xyrinius houshi – type locality for species

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• † Yaquius
  • † Yaquius travisi
• † Yatkolamys
• Yoldia
  • † Yoldia cooperii
  • † Yoldia impressa
  • † Yoldia mortuasusensis – type locality for species
  • † Yoldia packardi – or unidentified comparable form
  • † Yoldia scissurata
  • † Yoldia tenuissima
• † Yumaceras – tentative report
  • † Yumaceras ruminalis – type locality for species

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• † Zachrysia
  • † Zachrysia fraterna – type locality for species
• Zalophus
  • † Zalophus californianus

• 

  Fossil of the Early Triassic-Eocene cycad-like frond Zamites

  † Zamites
  • † Zamites californica
• † Zanteclites – type locality for genus
  • † Zanteclites hubbsi – type locality for species
• † Zaphleges
  • † Zaphleges longurio
• † Zapteryx
  • † Zapteryx californicus – or unidentified comparable form
• † Zarhinocetus
  • † Zarhinocetus errabundus – type locality for species
• Zelkova
  • † Zelkova oregoniana
• Zenaida
  • † Zenaida macroura
• Zirfaea
  • † Zirfaea dentata – or unidentified comparable form
  • † Zirfaea pilsbryi
• Zonotrichia
  • † Zonotrichia leucophrys

• 

  Known material diagram depicting the Miocene-Pleistocene mastodon relative Zygolophodon with a human to scale

  † Zygolophodon

References

1. Godfrey, S. J.; Lambert, O. (2023). "Miocene Toothed Whales (Odontoceti) from Calvert Cliffs, Atlantic Coastal Plain, USA". Smithsonian Contributions to Paleobiology. 107: 49–186. doi: 10.5479/si.23847438 . S2CID   260911542.
2. Charles L. Powell II; Erica C. Clites; Ashley W. Poust (2019). "Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA". PaleoBios. 36: ucmp_paleobios_44567.
3. Alton C. Dooley; Eric Scott; Jeremy Green; Kathleen B. Springer; Brett S. Dooley; Gregory James Smith (2019). "Mammut pacificus sp. nov., a newly recognized species of mastodon from the Pleistocene of western North America". PeerJ. 7: e6614. doi: 10.7717/peerj.6614 . PMC   6441323 . PMID   30944777.
4. Alton C. Dooley; Eric Scott; Jeremy Green; Kathleen B. Springer; Brett S. Dooley; Gregory James Smith (2019). "Mammut pacificus sp. nov., a newly recognized species of mastodon from the Pleistocene of western North America". PeerJ. 7: e6614. doi: 10.7717/peerj.6614 . PMC   6441323 . PMID   30944777.
5. Alton C. Dooley; Eric Scott; Jeremy Green; Kathleen B. Springer; Brett S. Dooley; Gregory James Smith (2019). "Mammut pacificus sp. nov., a newly recognized species of mastodon from the Pleistocene of western North America". PeerJ. 7: e6614. doi: 10.7717/peerj.6614 . PMC   6441323 . PMID   30944777.

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.