List of the Cenozoic life of Oregon

Last updated July 06, 2022

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

A

Abies
- † Abies chaneyi
- † Abies sonomensis
Shell of an Acamptogenotia sea snail
† Acamptogenotia
- † Acamptogenotia nodulosa
- † Acamptogenotia tessellata
Acanthocardia
- † Acanthocardia brewerii
Acer
- † Acer ashwillii
- † Acer cranei
- † Acer glabroides
- † Acer kluckingii
- † Acer manchesteri
- † Acer oligomedianum
- † Acer osmonti
- † Acer osmontii
† Acericecis
- † Acericecis chaneyi – type locality for species
† Achaenodon
- † Achaenodon fremdi – type locality for species
† Achlyoscapter
- † Achlyoscapter longirostris
Acila
- † Acila conradi
- † Acila decisa
- † Acila gettysburgensis
- † Acila nehalemensis
- † Acila shumardi
- † Acila trilineata
Acmaea
- † Acmaea vokesi
Mounted fossilized skeleton of the Miocene horse Acritohippus
† Acritohippus
- † Acritohippus isonesus
Acteon
- † Acteon chehalisensis
- † Acteon parvum
† Actinidia
- † Actinidia oregonensis
† Acutostrea
- † Acutostrea idriaensis
† Adeloblarina
- † Adeloblarina berklandi
Admete
- † Admete umbilicata
Aechmophorus
- † Aechmophorus occidentalis
† Aesculus
Life restoration of the Oligocene baleen whale Aetiocetus
† Aetiocetus – type locality for genus
- † Aetiocetus cotylalveus – type locality for species
- † Aetiocetus weltoni – type locality for species
Aforia
- † Aforia campbelli
- † Aforia clallamensis – or unidentified comparable form
† Agasoma
- † Agasoma gravidum
Agelaius – tentative report
Life restoration of the Eocene-Oligocene even-toed ungulate Agriochoerus
† Agriochoerus
- † Agriochoerus guyotianus
Aix
- † Aix sponsa
Alangium
- † Alangium eydei
- † Alangium rotundicarpum
- † Alangium thomae
† Allocyon
- † Allocyon loganensis
† Allomys
- † Allomys simplicidens
† Alluvisorex
- † Alluvisorex arcadentes
Alnus
- † Alnus carpinoides
- † Alnus heterodonta
- † Alnus newberryi
† Alwoodia
- † Alwoodia magna
Amaea
- † Amaea dickersoni – or unidentified related form
Life restoration of the Miocene elephant relative Amebelodon . Margret Flinsch (1932).
† Amebelodon
Amelanchier
- † Amelanchier covea
- † Amelanchier grayi
† Ameranella
- † Ameranella terrysmithae – type locality for species
Ammospermophilus
- † Ammospermophilus junturensis
Ampelocissus
- † Ampelocissus auriforma
- † Ampelocissus rooseae
- † Ampelocissus scottii
Life restoration of the Miocene-Pliocene beardog Amphicyon
† Amphicyon
- † Amphicyon frendens
- † Amphicyon galushai – or unidentified comparable form
Amphissa
- † Amphissa corrugata
† Ampullina
- † Ampullina oregonensis
† Anabernicula
Anadara
- † Anadara devincta
† Anamirta
- † Anamirta leiocarpa
Anas
- † Anas acuta
- † Anas americana
- † Anas boschas
- † Anas carolinensis
- A living Spatula clypeata , or northern shoveler
  † Anas clypeata
- † Anas cyanoptera
- † Anas discors
- † Anas platyrhynchos
Ancilla
- † Ancilla vernisa – type locality for species
† Anechinocardium
- † Anechinocardium lorenzanum
- † Anechinocardium weaveri
† Ankistrosperma
- † Ankistrosperma spitzerae
Anona
- † Anona preretriculata
† Anonaspermum
- † Anonaspermum bonesii
- † Anonaspermum pulchrum
- † Anonaspermum rotundum
† Anonymocarpa
- † Anonymocarpa ovoidea
† Anorthoscutum
- † Anorthoscutum oregonensis
Anser
- † Anser albifrons
- † Anser condoni – type locality for species
† Antecalomys
- † Antecalomys valensis
Antillophos
- † Antillophos dumbleana
Antilocapra
- † Antilocapra americana – or unidentified comparable form
† Aperiploma
- † Aperiploma bainbridgensis
Aphananthe
- † Aphananthe maii
† Aphelops
- † Aphelops megalodus
Aquila
- † Aquila chrysaetos
- † Aquila pliogryps – type locality for species
- † Aquila sodalis – type locality for species
Arbacia
- † Arbacia abiquaensis – type locality for species
† Archaeocyon
- † Archaeocyon pavidus
† Archaeohippus
- † Archaeohippus ultimus
† Archaeolagus
- † Archaeolagus macrocephalus – or unidentified comparable form
† Archaeotherium
Architectonica
- † Architectonica blanda
Archoplites ^[1]
- † Archoplites langrellorum – type locality for species^[1]
Restoration of an Arctodus , or short-faced bear, with a human to scale
† Arctodus
† Arctomyoides
- † Arctomyoides oregonensis
Ardea
- † Ardea herodias
- † Ardea paloccidentalis – type locality for species
Argobuccinum
- † Argobuccinum cammani
- † Argobuccinum coosense
- † Argobuccinum jeffersonense
- † Argobuccinum oregonense
† Ascosphaera
- † Ascosphaera eocenis
† Asterocarpinus
- † Asterocarpinus chaneyi
- † Asterocarpinus perplexans
Astraea
- † Astraea inequalis
Astreopora
- † Astreopora occidentalis – type locality for species
Astropecten
† Atriaecarpum
- † Atriaecarpum clarnense
Fossilized shell of the Paleocene-Miocene nautiloid cephalopod Aturia
† Aturia
- † Aturia angustata
- † Aturia grandior – or unidentified comparable form
† Aucuba
- † Aucuba smileyi
† Axinosperma
- † Axinosperma agnostum
Aythya
- † Aythya marila

B

Balaena
Balaenoptera
- Illustration of a living Balaenoptera acutorostrata , or common minke whale
  † Balaenoptera acutorostrata – or unidentified comparable form
Balanophyllia
- † Balanophyllia elegans
Balanus
Balcis
† Barbouromeryx
Bartramia
- † Bartramia umatilla – type locality for species
† Basirepomys
- † Basirepomys pliocenicus – or unidentified comparable form
- † Basirepomys romensis – type locality for species
Shell of a Bathybembix sea snail
Bathybembix
- † Bathybembix columbiana
- † Bathybembix nitor – type locality for species
Bathytoma
- † Bathytoma gabbiana
† Beckerosperma
- † Beckerosperma ovalicarpa
Bela
- † Bela tabulata
Betula
- † Betula angustifolia
Bittium
- † Bittium eschrichti
† Bonellitia
- † Bonellitia paucivaricata
- † Bonellitia smithwickensis – type locality for species
- † Bonellitia tumida – type locality for species
† Bonesia
- † Bonesia spatulata
Boreotrophon
- † Boreotrophon gracilis
- † Boreotrophon stuarti
Restoration of two of the Miocene-Pliocene bone-crushing dog genus Borophagus preying on a camel. Jay Matternes (1964).
† Borophagus
- † Borophagus pugnator
- † Borophagus secundus – or unidentified comparable form
Botaurus
- † Botaurus lentiginosus
† Bouromeryx
- † Bouromeryx americanus – or unidentified comparable form
- † Bouromeryx submilleri
Brachidontes
- † Brachidontes cowlitzensis
Branta
- † Branta bernicla
- † Branta canadensis
- † Branta hypsibata – tentative report
- † Branta hypsibatus
- † Branta propinqua – type locality for species
† Bruclarkia
- † Bruclarkia columbiana
- † Bruclarkia columbianum
- † Bruclarkia oregonensis
- † Bruclarkia vokesi
Bubo
- A living Bubo virginianus , or great horned owl
  † Bubo virginianus
Buccinum
- † Buccinum strigillatum
Bullia
- † Bullia bogachielia
† Bumelia – tentative report
- † Bumelia? subangularis
† Bursericarpum
- † Bursericarpum oregonense

C

Cadulus
Calliostoma
- † Calliostoma cammani
- † Calliostoma costatum
Callista
- † Callista conradiana
A living Callorhinus ursinus , or northern fur seal
Callorhinus – tentative report
] † Calocedrus
- † Calocedrus schornii
† Calycocarpum
- † Calycocarpum crassicrustae
Calyptraea
- † Calyptraea diegoana
- † Calyptraea fastigiata
- † Calyptraea inornata
- † Calyptraea sookensis
† Camelops
- † Camelops hesternus
Cancellaria
- † Cancellaria oregonensis
- † Cancellaria siletzensis
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 – or unidentified comparable form
- † Canis edwardii
- † Canis latrans
- † Canis lupus – or unidentified comparable form
Cardiomya
- † Cardiomya anaticepsella – type locality for species
- † Cardiomya pavascotti
† Carpocyon
† Carpolithus
- † Carpolithus bellisperma
A living Carya , or hickory tree
Carya
Caryophyllia
- † Caryophyllia oregonensis – type locality for species
Castanea
- † Castanea basidentata
Castanopsis
- † Castanopsis crepetii
- † Castanopsis longifolius
Castor
† Catalpa
Cedrela
- † Cedrela merrillii
† Cedrelospermum
- † Cedrelospermum lineatum
Celleporina
Celtis
- † Celtis burnhamae
† Centrocercus
- † Centrocercus urophasianus
Cercidiphyllum
- † Cercidiphyllum crenatum
Flowers of a living Cercis or redbud tree
Cercis
- † Cercis maurerae
Cerithiopsis
- † Cerithiopsis preussi – or unidentified comparable form
† Chandlera
- † Chandlera lacunosa
† Charitonetta
- † Charitonetta albeola
Chen
- † Chen hyperborea
- † Chen rossii
Life restoration of the Pleistocene-Holocene Chendytes , or Law's diving-goose
† Chendytes
Chione
- † Chione ensifera
- † Chione securis
Chlidonias
- † Chlidonias nigra
Chlorostoma
- † Chlorostoma pacificum
† Choerodon
- † Choerodon caninus
† Chrysodomus
- † Chrysodomus bairdi
- † Chrysodomus imperialis
- † Chrysodomus nodiferus
- † Chrysodomus phoenicus
- † Chrysodomus tabulatus
Ciliatocardium
- † Ciliatocardium coosense
† Cinnamomophyllum
- † Cinnamomophyllum bendirei
Circus
- † Circus eyaneus
Cladrastis
- † Cladrastis oregonensis
Clangula
- A living Clangula hyemalis , or long-tailed duck
  † Clangula hyemalis
Cleyera
- † Cleyera grotei
Clinocardium
- † Clinocardium meekianum
- † Clinocardium nuttallii
† Clivuloturris
- † Clivuloturris levis – or unidentified comparable form
Cochliolepis – tentative report
- † Cochliolepis schoonerensis
Colaptes
- † Colaptes cafer
† Colodon
Columbella
- † Columbella gausapata
Shells in differing orientations of Colus whelk sea snails
Colus – tentative report
- † Colus precursor
Colymbus
- † Colymbus holbellii
- † Colymbus nigricollis
- † Colymbus oligocaenus – type locality for species
- † Colymbus parvus
† Comicilabium
- † Comicilabium atkinsii
Comitas
- † Comitas monile
- † Comitas oregonensis
- † Comitas spencerensis
† Comminicarpa
- † Comminicarpa friisae
Comptonia
- † Comptonia columbiana
† Conchocele
- † Conchocele bathyaulax
- † Conchocele bisecta
- † Conchocele taylori
Conomitra
- † Conomitra vernoniana – type locality for species
Fossilized shell of a Conus cone snail
Conus
- † Conus armentrouti – type locality for species
- † Conus weltoni – type locality for species
† Copemys
- † Copemys barstowensis
- † Copemys esmeraldensis
- † Copemys pagei
† Cophocetus – type locality for genus
- † Cophocetus oregonensis – type locality for species
Corbula
- † Corbula dickersoni
† Cormocyon
- † Cormocyon copei
Cornus
- † Cornus clarnensis
† Cornwallius
- † Cornwallius sookensis
Corvus
- † Corvus annectens – type locality for species
- † Corvus corax
† Coryloides
- † Coryloides hancockii
Fossilized fruit of a Craigia plant
Craigia
- † Craigia oregonensis
Crataegus
- † Crataegus merriamii
- † Crataegus newberryi
Crenella
- † Crenella porterensis – or unidentified comparable form
Crepidula
- † Crepidula adunca
- † Crepidula grandis – or unidentified comparable form
- † Crepidula praerupta
- † Crepidula princeps
- † Crepidula ungana
† Cruciptera
- † Cruciptera simsonii
† Crusafontina
- † Crusafontina minima
Cryptomya
- † Cryptomya californica
Cryptonatica
- † Cryptonatica affinis
- † Cryptonatica oregonensis
- † Cryptonatica pittsburgensis
A taxidermied Cryptotis , or small-eared shrew
Cryptotis
- † Cryptotis adamsi
† Cuneisemen
- † Cuneisemen truncatum
† Cunninghamia
- † Cunninghamia chaneyi
† Cupidinimus
- † Cupidinimus magnus
† Curvitinospora
- † Curvitinospora formanii
Cyclocardia
- † Cyclocardia hannibali – or unidentified comparable form
- † Cyclocardia moniligena
- † Cyclocardia subtenta
- † Cyclocardia ventricosa
† Cyclotella
- † Cyclotella jonesii – type locality for species
Cygnus
- † Cygnus paloregonus
Cymatium
- † Cymatium pacificum
† Cynarctoides
- † Cynarctoides lemur
- † Cynarctoides luskensis – or unidentified comparable form
Fossilized cranium of the Miocene bear-dog Cynelos
† Cynelos
- † Cynelos sinapius
† Cynorca
† Cyperacites

D

† Daeodon
Dafila
- † Dafila acuta
† Daphoenodon
- † Daphoenodon robustum
† Daphoenus
- † Daphoenus socialis
† Dasmia
- † Dasmia americana – type locality for species
Mounted fossilized skeleton of the Eocene pseudo-toothed bird Dasornis
† Dasornis – or unidentified related form
† Davisicarpum
- † Davisicarpum limacioides
Decodon
- † Decodon brownii
Delectopecten
- † Delectopecten peckhami
Dendragapus – type locality for genus
- † Dendragapus gillii – type locality for species
† Dendrogapus
- † Dendrogapus lucasi
- † Dendrogapus nanus
Dentalium
- † Dentalium laneensis
- † Dentalium pseudonyma
- † Dentalium rectius
- † Dentalium stentor
† Dentisemen
- † Dentisemen parvum
† Desmatippus
- † Desmatippus avus
† Desmatochoerus
- † Desmatochoerus leidyi
† Desmatolagus
† Desmatophoca
- † Desmatophoca oregonensis
† Desmocyon
- † Desmocyon thomsoni
Life restoration of the Oligocene-Miocene herbivorous marine mammal Desmostylus
† Desmostylus
- † Desmostylus hesperus – type locality for species
† Deviacer
- † Deviacer wolfei
† Diceratherium
- † Diceratherium annectens
- † Diceratherium armatum
† Dilophodelphis – type locality for genus
- † Dilophodelphis fordycei – type locality for species
† Dinaelurus
- † Dinaelurus crassus
Life restoration of the Eocene-Miocene false saber-toothed cat Dinictis . Robert Bruce Horsfall (1913).
† Dinictis
- † Dinictis cyclops
† Diplobunops
- † Diplobunops kardoula – type locality for species
Diploclisia
- † Diploclisia auriformis
† Diplodipelta – type locality for genus
- † Diplodipelta miocenica
- † Diplodipelta reniptera
Diplodonta
- † Diplodonta parilis
† Diploporus
- † Diploporus torreyoides
† Dipoides
- † Dipoides smithi – type locality for species
- † Dipoides stirtoni – type locality for species
- † Dipoides vallicula
† Diprionomys
- † Diprionomys parvus
Dipteronia
Discinisca
- † Discinisca oregonensis
† Domninoides
Dosinia
- † Dosinia whitneyi
Horns and other fossils attributed to Dromomeryx
† Dromomeryx
- † Dromomeryx borealis
† Durocarpus
- † Durocarpus cordatus
† Dyticonastis – type locality for genus
- † Dyticonastis rensbergeri – type locality for species

E

Echinophoria
- † Echinophoria dalli
† Ectinochilus
- † Ectinochilus macilenta
† Ekgmowechashala
† Emmenopterys
- † Emmenopterys dilcheri
Life restoration of the Oligocene-Miocene Enaliarctos and the toothed whale Macrodelphinus (background)
† Enaliarctos
- † Enaliarctos barnesi – type locality for species
- † Enaliarctos emlongi – type locality for species
- † Enaliarctos mitchelli
- † Enaliarctos tedfordi – type locality for species
Engelhardtia
- † Engelhardtia olsoni
Enhydra
† Enhydrocyon
- † Enhydrocyon prolatus
- † Enhydrocyon stenocephalus
Ennucula
- † Ennucula nuculana
Ensete
† Ensete
- † Ensete oregonense – type locality for species
† Entoptychus
- † Entoptychus individens
- † Entoptychus planifrons
- † Entoptychus wheelerensis
† Eohypserpa
- † Eohypserpa scottii
† Eopleurotoma
- † Eopleurotoma ornata – or unidentified related form
† Eosiphonalia
- † Eosiphonalia oregonensis
Epacroleda – report made of unidentified related form or using admittedly obsolete nomenclature
- † Epacroleda epacris
Mounted fossilized skeleton of the Miocene bone-crushing dog Epicyon
† Epicyon
- † Epicyon haydeni
- † Epicyon saevus
† Epihippus
- † Epihippus gracilis
Epilucina
- † Epilucina washingtoniana
Epitonium
- † Epitonium condoni
- † Epitonium hindsii
- † Epitonium keaseyense
- † Epitonium keaseyensis
- † Epitonium schencki
- † Epitonium wyattdurhami – type locality for species
Fossilized skull of the Oligocene-Miocene oreodont mammal Eporeodon
† Eporeodon
- † Eporeodon occidentalis
- † Eporeodon trigonocephalus
† Equisetum
Equus
- † Equus pacificus
† Eremochen – type locality for genus
- † Eremochen russelli – type locality for species
† Erismatura
- † Erismatura jamaicensis
Erolia
- † Erolia melanotos
Ervilia – tentative report
- † Ervilia oregonensis
† Eschatius
† Eubrontotherium – type locality for genus
- † Eubrontotherium clarnoensis – type locality for species
† Eucastor
- † Eucastor malheurensis
Fossilized skeleton of the Miocene-Pliocene coyote-like canine Eucyon
† Eucyon
- † Eucyon davisi
† Euoplocyon
- † Euoplocyon brachygnathus
Euphagus
- † Euphagus cyanocephalus
Eurytellina
- † Eurytellina aduncanasa
Euspira
- † Euspira clementensis
- † Euspira hotsoni
- † Euspira nuciformis
- † Euspira pallida
† Eutrephoceras
- † Eutrephoceras oregonense
Exbucklandia
- † Exbucklandia oregonensis
† Exilia
- † Exilia bentsonae – type locality for species
- † Exilia lincolnensis

F

Fagus
- † Fagus pacifica
Falco
- † Falco oregonus – type locality for species
Felaniella
- † Felaniella snavelyi
Ferminoscala
- † Ferminoscala dickersoni
† Ferrignocarpus
- † Ferrignocarpus bivalvis
A living Ficus , or fig tree
Ficus
- † Ficus modesta
- † Ficus ocoyanum – or unidentified comparable form
Fimbria
† Fimbrialata
- † Fimbrialata wingii
Flabellum
- † Flabellum oregonense – type locality for species
† Flectorivus
- † Flectorivus microdontos
† Florentiamys
† Floridaceras
- † Floridaceras whitei
Flower of the Eocene-Oligocene cocoa relative Florissantia
† Florissantia
- † Florissantia ashwillii – type locality for species
- † Florissantia speirii
† Fokieniopsis
- † Fokieniopsis praedecurrens
† Fortunearites
- † Fortunearites endressii
† Fothergilla
- † Fothergilla praeovata
† Fragarites
- † Fragarites ramificans
† Fraxinus
- † Fraxinus coulteri
Fulgoraria
- † Fulgoraria indurata
Fulgurofusus
- † Fulgurofusus serratus – type locality for species
Fulica
- A living Fulica americana , or American coot
  Fulica americana
- † Fulica infelix – type locality for species
- † Fulica minor – type locality for species
† Fusinis
- † Fusinis dilleri – type locality for species
Fusinus
- † Fusinus coosensis
- † Fusinus dilleri

G

† Gagaria
- † Gagaria crenularis – type locality for species
A living Gaillardia , or blanket flower
† Gaillardia
- † Gaillardia thomsoni
Gari – tentative report
- † Gari furcata – or unidentified related form
Gemmula
- † Gemmula bentsonae
- † Gemmula facula
- † Gemmula rockcreekensis
† Gentilicamelus
- † Gentilicamelus cameloides – type locality for species
- † Gentilicamelus sternbergi
Glaucionetta
- † Glaucionetta islandica
† Globulicarpium
- † Globulicarpium levigatum
Glycymeris
- † Glycymeris major
- † Glycymeris sagittata
- † Glycymeris septentrionalis
Glyptocidaris
† Goedertius – type locality for genus
- † Goedertius oregonensis – type locality for species
Mounted fossilized skeleton of the Miocene-Pleistocene elephant relative Gomphotherium
† Gomphotherium
- † Gomphotherium obscurum
† Goniodontomys
- † Goniodontomys disjunctus – type locality for species
Granula
- † Granula profundorum – type locality for species
Gyrineum – report made of unidentified related form or using admittedly obsolete nomenclature
- † Gyrineum dilleri

H

† Hadrianus
Halesia
- † Halesia oregona
Haliaeetus
- † Haliaeetus leucocephalus
Fossilized mandible of the Eocene horse Haplohippus
† Haplohippus
- † Haplohippus texanus
† Haplomys
- † Haplomys liolophus
† Hemiauchenia – tentative report
† Hemipsalodon
- † Hemipsalodon grandis
Hemithiris
- † Hemithiris psittacea
† Heptacodon
Heptranchias
- † Heptranchias howelli
Life restoration of the Eocene-Miocene mammal Herpetotherium
† Herpetotherium
- † Herpetotherium merriami
† Hesperhys – or unidentified comparable form
† Hesperogaulus
- † Hesperogaulus gazini – type locality for species
- † Hesperogaulus wilsoni – type locality for species
† Hesperolagomys
- † Hesperolagomys galbreathi – or unidentified comparable form
† Hesperosorex – tentative report
Heteropora
† Hexacarpellites
- † Hexacarpellites hallii
Hiatella
Himantopus
- † Himantopus mexicanus
† Hippotherium
Life restoration of the Eocene-Oligocene false saber-toothed cat Hoplophoneus . Robert Bruce Horsfall (1913).
† Hoplophoneus
- † Hoplophoneus cerebralis
- † Hoplophoneus strigidens
† Hovenia
- † Hovenia oregonensis
Hydrangea
- † Hydrangea knowltonii
† Hydrochelidon
- † Hydrochelidon nigra
† Hypertragulus
- † Hypertragulus calcaratus
- † Hypertragulus hesperius
- † Hypertragulus planiceps
Life restoration of the Miocene horse Hypohippus . Heinrich Harder (1920).
† Hypohippus
- † Hypohippus osborni
† Hypolagus
- † Hypolagus fontinalis
- † Hypolagus oregonensis – type locality for species
- † Hypolagus vetus
† Hypomorphnus
- † Hypomorphnus sodalis – tentative report
† Hypsidoris
- † Hypsidoris oregonensis – type locality for species
† Hypsiops
- † Hypsiops breviceps
† Hyrachyus
- † Hyrachyus eximius
† Hystricops
- † Hystricops browni

I

Fossilized skull of the Miocene bear Indarctos
† Indarctos
- † Indarctos oregonensis – type locality for species
† Ingentisorex
- † Ingentisorex tumididens
† Iodes
- † Iodes chandlerae
- † Iodes multirecticulata
† Iodicarpa
- † Iodicarpa ampla
- † Iodicarpa lenticularis
Isocrinus
Isurus
- † Isurus planus

J

† Jimomys
- † Jimomys lulli
† Joejonesia
- † Joejonesia globosa
† Juglandiphyllites
- † Juglandiphyllites cryptatus
A living Juglans , or walnut tree
Juglans
- † Juglans clarnensis
- † Juglans wheelerensis

K

Restoration of the Oligocene-Miocene horse Kalobatippus
† Kalobatippus
† Kardiasperma
- † Kardiasperma parvum
Katherinella
- † Katherinella angustifrons
† Keasius
- † Keasius taylori – type locality for species
Kellia
- † Kellia saxiriva – type locality for species
- † Kellia vokesi – type locality for species
† Keteleeria
- † Keteleeria rujadana
† Kewia
- † Kewia marquamensis – type locality for species
† Kolponomos
- † Kolponomos newportensis – type locality for species

L

Lacuna
- Illustration of shells in multiple views of Lacuna vincta , or northern lacuna sea snails
  † Lacuna vincta
Lamelliconcha
- † Lamelliconcha clarki
† Langtonia
- † Langtonia bisulcata
† Lantanotherium
Larus
- † Larus argentatus
- A living Larus californicus , or California gull
  † Larus californicus
- † Larus oregonus – type locality for species
- † Larus philadelphia
- † Larus pristinus – type locality for species
- † Larus robustus – type locality for species
† Laurocalyx
- † Laurocalyx wheelerae
† Laurocarpum
- † Laurocarpum hancockii
- † Laurocarpum nutbedensis
- † Laurocarpum raisinoides
† Leguminocarpon
† Leidymys
Lepeta
- † Lepeta concentrica
† Leptarctus
- † Leptarctus oregonensis
Illustration of a fossilized skull of the Oligocene-Miocene dog Leptocyon
† Leptocyon
- † Leptocyon douglassi
- † Leptocyon mollis
- † Leptocyon vulpinus
† Leptodontomys
- † Leptodontomys oregonensis – type locality for species
- † Leptodontomys quartzi
Lepus
- † Lepus ennisianus
Leukoma
- † Leukoma staminea
† Lignicarpus
- † Lignicarpus crassimuri
† Ligniglobus
- † Ligniglobus sinuosifibrae
† Limicolavis
- † Limicolavis pluvianella – type locality for species
Limnodromus
- A living Limnodromus griseus , or short-billed dowitcher
  † Limnodromus griseus – tentative report
† Limnoecus
- † Limnoecus tricuspis – or unidentified comparable form
Lindera
- † Lindera clarnensis
- † Lindera oregona
† Liodontia
- † Liodontia alexandrae
- † Liodontia furlongi
The autumn foliage of a living Liquidambar , or sweetgum tree
Liquidambar
† Liracassis
- † Liracassis petrosa
† Litheuphaea – type locality for genus
- † Litheuphaea carpenteri – type locality for species
† Lithocarpus
- † Lithocarpus klamathensis
† Litorhadia
- † Litorhadia astoriana
- † Litorhadia washingtonensis
- † Litorhadia washingtoni
† Litseaphyllum
- † Litseaphyllum presanguinea
Littorina
- † Littorina remondi
† Lobipes
- † Lobipes lobatus
Lophodytes
- A living Lophodytes cucullatus , or hooded merganser
  † Lophodytes cucullatus
† Lophopanopeus
- † Lophopanopeus baldwini – type locality for species
† Lophortyx
- † Lophortyx shotwelli – type locality for species
Lucinoma
- † Lucinoma acutilineata
- † Lucinoma columbiana
† Lunaticarpa
- † Lunaticarpa curvistriata
† Lutravus
- † Lutravus halli – or unidentified comparable form
Lynx
- † Lynx longignathus
A living Lytechinus sea urchin
Lytechinus
- † Lytechinus baldwini – type locality for species

M

† Macginicarpa
- † Macginicarpa glabra
Fossilized cranium of the Miocene-Pleistocene saber-toothed cat Machairodus
† Machairodus
† Machilus
- † Machilus asiminoides
Macoma
- † Macoma albaria
- † Macoma arcatata
- † Macoma astori
- † Macoma calcarea
- † Macoma golikovi
- † Macoma inquinata
- Shell of Macoma nasuta , or the bent-nosed clam
  † Macoma nasuta
- † Macoma vancouverensis
Macrocallista
- † Macrocallista pittsburgensis
† Macrognathomys
- † Macrognathomys nanus
Mactromeris
- † Mactromeris albaria
- † Mactromeris pittsburgensis
- † Mactromeris polynyma
- † Mactromeris ramonensis
- † Mactromeris veneriformis
Close-up view of a Magnolia flower
Magnolia
- † Magnolia muldoonae
- † Magnolia paroblonga
- † Magnolia tiffneyi
Mahonia
- † Mahonia simplex
† Malus – or unidentified comparable form
† Mammut
- † Mammut furlongi – type locality for species
† Mammuthus
- Life restoration of a herd of Mammuthus columbi , or Columbian mammoths. The extent of the fur depicted is hypothetical. Charles R. Knight (1909).
  † Mammuthus columbi – tentative report
Marcia
- † Marcia bunkeri
- † Marcia oregonensis
Margarites
- † Margarites pupilla
† Marshochoerus
- † Marshochoerus socialis
Martes
- † Martes gazini – type locality for species
Martesia
- † Martesia turnerae
Mastixia
† Mastixicarpum
- † Mastixicarpum occidentale
† Mastixioidiocarpum
- † Mastixioidiocarpum oregonense
Megachasma
- † Megachasma applegatei
Mounted fossilized skeleton of the Miocene-Pleistocene ground sloth Megalonyx
† Megalonyx
† Megapaloelodus
- † Megapaloelodus opsigonus – type locality for species
† Megatylopus
Megayoldia
- † Megayoldia chehalisensis
Melanitta
- † Melanitta deglandi
- † Melanitta perspicillata
† Meliosma
- † Meliosma beusekomii
- † Meliosma bonesii
- † Meliosma elongicarpa
- † Meliosma jenkinsii
- † Meliosma leptocarpa
† Meniscomys
- † Meniscomys uhtoffi
† Menispermum – or unidentified comparable form
Mergus
- † Mergus merganser
- † Mergus serrator
Life restoration of the Miocene three-toed horse Merychippus
† Merychippus
- † Merychippus brevidontus
- † Merychippus relictus
† Merychyus
- † Merychyus arenarum
- † Merychyus minimus
† Merycochoerus
- † Merycochoerus magnus
- † Merycochoerus matthewi
- † Merycochoerus minor
† Merycoides
- † Merycoides longiceps
† Merycoidodon
- † Merycoidodon bullatus
Skull fossils of the Oligocene-Miocene dog Mesocyon
† Mesocyon
- † Mesocyon brachyops
- † Mesocyon coryphaeus
† Mesohippus
- † Mesohippus bairdi – or unidentified comparable form
† Metalopex
- † Metalopex merriami
Metasequoia
- † Metasequoia occidentalis
† Microphallus
- † Microphallus perplexus
Micropodium
- † Micropodium ovatum
† Micropternodus
- † Micropternodus morgani
Microtus
- † Microtus montanus
Fossilized skull of the Eocene-Oligocene three-toed horse Miohippus
† Miohippus
- † Miohippus intermedius
† Miopleionia
- † Miopleionia oregonensis
† Mioplejonia
- † Mioplejonia oregonensis
† Miotapirus
† Mistia – type locality for genus
- † Mistia spinosa – type locality for species
Modiolatus
- † Modiolatus rectus
Modiolus
- † Modiolus eugenensis
- † Modiolus modiolus
† Molopophorus
- † Molopophorus anglonana
- † Molopophorus dalli
- † Molopophorus fishii
- † Molopophorus gabbi
- † Molopophorus matthewi
Molothrus
- † Molothrus ater – tentative report
† Monosaulax
- † Monosaulax progressus – type locality for species
- † Monosaulax typicus – type locality for species
† Moropus
- † Moropus oregonensis
Mulinia
- † Mulinia eugenensis
Mustela
† Mya
- † Mya grewingki
- † Mya truncata
† Mylagaulodon
- † Mylagaulodon angulatus
Myotis – or unidentified comparable form
† Mystipterus
- † Mystipterus pacificus
† Mystocheilus – type locality for genus^[1]
- † Mystocheilus fresti – type locality for species^[1]
Mytilus
- † Mytilus californianus
- † Mytilus edulis
- † Mytilus middendorffi
- † Mytilus snohomishensis

N

† Nanotragulus – or unidentified comparable form
A living Nassarius , or nassa mud snail
Nassarius
- † Nassarius arnoldi
- † Nassarius fossata
- † Nassarius lincolnensis
- † Nassarius perpinguis
Natica
- † Natica thomsonae
- † Natica weaveri
† Nautilus
- † Nautilus angustatus – type locality for species
Nectandra
- † Nectandra presannguinea
† Nehalemia – type locality for genus
- † Nehalemia delicata – type locality for species
Nemocardium
- † Nemocardium formosum
- † Nemocardium griphus – or unidentified comparable form
- † Nemocardium linteum
† Neohipparion
- † Neohipparion leptode – or unidentified comparable form
Mounted fossilized skeleton of the Miocene Neophrontops
Neophrontops
- † Neophrontops dakotensis
Neotamias
- † Neotamias malloryi
† Nephrosemen
- † Nephrosemen reticulatus
Nettion
- † Nettion bunkeri
† Neurotrichus – tentative report
- † Neurotrichus columbianus
Neverita
- † Neverita globosa
- † Neverita jamesae
- † Neverita thomsonae
- † Neverita washingtonensis
† Nexuotapirus
- † Nexuotapirus robustus
Nucella
- † Nucella decemcostata
- † Nucella lamellosa
- † Nucella saxicola
Interior of a fossilized shell of the Early Ordovician-modern marine bivalve Nucula
Nucula
- † Nucula vokesi
Nuculana
- † Nuculana gabbi
- † Nuculana nuculana
Numenius
- † Numenius americanus – tentative report
† Nuphar
Nutricola
- † Nutricola lordi
- † Nutricola tantilla
Nyroca
- † Nyroca affinis
- † Nyroca americana
- † Nyroca collaris – tentative report
† Nyssa
- † Nyssa scottii
- † Nyssa spatulata

O

† Ocajila
A living Ochotona , or pika
Ochotona
- † Ochotona spanglei – type locality for species
Ocotea
- † Ocotea ovoidea
† Ocyplonessa
- † Ocyplonessa shotwelli – type locality for species
† Odontocaryoidea
- † Odontocaryoidea nodulosa
† Ogmophis – type locality for genus
- † Ogmophis oregonensis – type locality for species
Olar
- † Olar buccinator
† Olequahia
- † Olequahia schencki
† Oligobunis
Olivella
- Three living Olivella biplicata , or purple dwarf olive sea snail
  † Olivella biplicata
- † Olivella mathewsonii
- † Olivella pedroana
† Omsicarpium
- † Omsicarpium striatum
Ondatra
- † Ondatra annectens – type locality for species
Opalia
- † Opalia hertleini
- † Opalia williamsoni – or unidentified comparable form
† Oregonomys
- † Oregonomys pebblespringsensis – type locality for species
- † Oregonomys sargenti
† Oreodontoides
- † Oreodontoides oregonensis
† Oreolagus
- † Oreolagus wallacei – type locality for species
† Oryctoantiquus – type locality for genus
- † Oryctoantiquus borealis – type locality for species
† Osbornodon
- † Osbornodon sesnoni
Living Osmunda ferns
† Osmunda
- † Osmunda occidentale
Ostrea
- † Ostrea lurida – or unidentified comparable form
Ostrya
- † Ostrya oregoniana

P

† Pachycrommium
- † Pachycrommium clarki
† Paciculus
† Pacificotaria – type locality for genus
- † Pacificotaria hadromma – type locality for species
† Palaeoallophylus
- † Palaeoallophylus globosa
- † Palaeoallophylus gordonii
† Palaeocarya
- † Palaeocarya clarnensis
- † Palaeocarya olsonii – or unidentified comparable form
Life restoration of the Oligocene-Miocene beaver Palaeocastor
† Palaeocastor
- † Palaeocastor peninsulatus
† Palaeolagus
- † Palaeolagus haydeni
† Palaeophytocrene
- † Palaeophytocrene hancockii
- † Palaeophytocrene pseudopersica
† Palaeosinomenium
- † Palaeosinomenium venablesii
† Paleopanax
- † Paleopanax oregonensis
† Paleoplatycarya – tentative report
- † Paleoplatycarya hickeyi
† Paleotetrix
- † Paleotetrix gilli
Flowers and foliage of a living Paliurus
Paliurus
- † Paliurus blakei
Pandora
- † Pandora eocapsella
- † Pandora grandis
- † Pandora laevis
Panomya
- † Panomya ampla
Panopea
- † Panopea abrupta
- † Panopea ramonensis
- † Panopea snohomishensis
Panthera
- A living Panthera onca , or jaguar
  † Panthera onca – or unidentified comparable form
† Parablastomeryx
† Paracarpinus
- † Paracarpinus chaneyi
† Paracosoryx
- † Paracosoryx nevadensis – or unidentified comparable form
† Paracryptotis
- † Paracryptotis rex
† Paradaphoenus
- † Paradaphoenus cuspigerus
† Paradomnina
- † Paradomnina relictus – type locality for species
† Paraenhydrocyon
- † Paraenhydrocyon josephi
- † Paraenhydrocyon wallovianus
† Parahippus
- † Parahippus leonensis – or unidentified related form
- † Parahippus pawniensis
Fossilized skeleton of the Pliocene-Pleistocene ground sloth Paramylodon
† Paramylodon
- † Paramylodon harlani
† Parapaenemarmota
- † Parapaenemarmota oregonensis
Parapholas
- † Parapholas californica
† Parapliosaccomys
- † Parapliosaccomys oregonensis
† Parasyrinx
- † Parasyrinx delicata
† Paratomarctus
- † Paratomarctus temerarius
Life restoration the Eocene-Oligocene camel Paratylopus (upper right)
† Paratylopus
† Paronychomys
- † Paronychomys shotwelli – type locality for species
† Paroreodon
- † Paroreodon parvus
- † Paroreodon stocki
† Parrotia
- † Parrotia brevipetiolata
† Parthenocissus
- † Parthenocissus angustisulcata
- † Parthenocissus clarnensis
Parvamussium
- † Parvamussium astoriana
Parvicardium
- † Parvicardium eugenense
Passalus
- † Passalus indormitus – type locality for species
† Pasternackia
- † Pasternackia pusilla
Patinopecten
- † Patinopecten caurinus
- † Patinopecten coosensis
- † Patinopecten oregonensis
- † Patinopecten popatulus
- † Patinopecten propatulus
† Patriofelis
- † Patriofelis ferox
† Pediocetes
- † Pediocetes lucasii – type locality for species
- † Pediocetes nanus – type locality for species
- † Pediocetes phasianellus
Pekania
- † Pekania occulta – type locality for species
Life restoration of the Oligocene-Pleistocene false-toothed bird Pelagornis
† Pelagornis
Pelecanus
- † Pelecanus erythrorhynchos
- † Pelecanus erythrorhynchus – tentative report
Penitella
- † Penitella penita
† Pentoperculum
- † Pentoperculum minimus
† Perchoerus
- † Perchoerus probus
† Peridiomys
- † Peridiomys oregonensis
Periploma
Perognathus
- † Perognathus stevei – type locality for species
A living Peromyscus , or deer mouse
Peromyscus
- † Peromyscus antiquus
- † Peromyscus dentalis
†Perse
- † Perse lincolnensis
- † Perse pittsburgensis
† Petauristodon
Phalacrocorax
- † Phalacrocorax auritus – tentative report
- † Phalacrocorax leptopus – type locality for species
- † Phalacrocorax macropus
- † Phalacrocorax marinavis – type locality for species
Phalaropus
- † Phalaropus lobatus
Phalium
- † Phalium aequisulcatum
- † Phalium turricula
Phanerolepida
- † Phanerolepida oregonensis
† Philotrox
- † Philotrox condoni
† Phlaocyon
- † Phlaocyon latidens
Phoca
- † Phoca vitulina – or unidentified comparable form
† Phocavis – type locality for genus
- † Phocavis maritimus – type locality for species
Two Phoenicopterus , or flamingos
Phoenicopterus
- † Phoenicopterus copei – type locality for species
† Pileosperma
- † Pileosperma minutum
- † Pileosperma ovatum
† Pinckneya
- † Pinckneya dilcheri
† Pinis
- † Pinis johndayensis
† Pinnarctidion
- † Pinnarctidion rayi – type locality for species
A living Pinus , or pine tree
Pinus
- † Pinus johndayensis
- † Pinus knowltoni
† Pistachioides
- † Pistachioides striata
Pitar
- † Pitar clarki
- † Pitar dalli
† Plafkeria
- † Plafkeria obliquifolia
† Plagiolophus
- † Plagiolophus weaveri
Platanus
- † Platanus condoni
- † Platanus condonii
- † Platanus dissecta
- † Platanus exaspera
- † Platanus hirticarpa
Restoration of a herd of alarmed Miocene-Pleistocene peccaries of the genus Platygonus . Charles R. Knight (1922).
† Platygonus
- † Platygonus brachirostris
- † Platygonus oregonensis
- † Platygonus vetus – or unidentified comparable form
† Pleiolama
- † Pleiolama vera – or unidentified comparable form
† Plesiocolopirus
- † Plesiocolopirus hancocki
† Plesiogulo
- † Plesiogulo marshalli
† Plesiosorex
- † Plesiosorex donroosai – or unidentified comparable form
† Pleurolicus
- † Pleurolicus sulcifrons
† Pleurolira
- † Pleurolira oregonensis
† Pleuroliria
- † Pleuroliria bicarinata
† Plioceros
† Pliocyon – or unidentified comparable form
- † Pliocyon medius
Fossilized skull of the Miocene horse Pliohippus
† Pliohippus
- † Pliohippus spectans
† Plionarctos
† Plionictis
- † Plionictis ogygia
- † Plionictis oregonensis
† Pliosaccomys
† Pliotaxidea
- † Pliotaxidea nevadensis
† Pliozapus
- † Pliozapus solus
Podiceps
- † Podiceps auritus – tentative report
Podilymbus
- † Podilymbus podiceps
Pododesmus
- † Pododesmus macrochisma
Life restoration of the Oligocene false saber-toothed cat Pogonodon in a tree
† Pogonodon
- † Pogonodon brachyops
- † Pogonodon platycopis – type locality for species
Polinices
- † Polinices canalis
- † Polinices draconis
- † Polinices galianoi
- † Polinices washingtonensis
- † Polinices washingtoni
† Polinicies
- † Polinicies clementensis
- † Polinicies nuciformis
† Pollostosperma
- † Pollostosperma dictyum
† Polygrana
- † Polygrana nutbedense
Fronds of living Polypodium ferns
† Polypodium – or unidentified comparable form
† Pontolis – type locality for genus
- † Pontolis magnus – type locality for species
† Potamogeton
- † Potamogeton parva
† Potanospira
- † Potanospira fryi
† Praehyalocylis
- † Praehyalocylis cretacea
† Priscofusus
- † Priscofusus coli – or unidentified comparable form
- † Priscofusus geniculus
- † Priscofusus medialis
- † Priscofusus medialus
- † Priscofusus stewarti
† Pristichampsus
† Procadurcodon – report made of unidentified related form or using admittedly obsolete nomenclature
† Procamelus
- † Procamelus grandis – or unidentified comparable form
† Procerapex
- † Procerapex bentsonae
Proischyromys – type locality for genus
- † Proischyromys perditus – type locality for species
† Promartes – or unidentified comparable form
† Promerycochoerus
- † Promerycochoerus macrostegus
- † Promerycochoerus superbus
† Proneotherium – type locality for genus
- † Proneotherium repenningi – type locality for species
† Pronotolagus
Propeamussium
- † Propeamussium clallamensis – or unidentified comparable form
† Prosomys
- † Prosomys mimus – type locality for species
† Prosthennops
- † Prosthennops serus – tentative report
† Proterozetes – type locality for genus
- † Proterozetes ulysses – type locality for species
Life restoration of the Eocene brontothere mammal Protitanops
† Protitanops
- † Protitanops curryi
† Protolabis – or unidentified comparable form
† Protorepomys – type locality for genus^[2]
† Protospermophilus
- † Protospermophilus malheurensis
Protothaca
- † Protothaca staleyi
† Pruniticarpa
- † Pruniticarpa cevallosii
Prunus
- † Prunus olsonii
- † Prunus weinsteinii
Psammacoma
- † Psammacoma arctata
† Psephophorus – tentative report
- † Psephophorus oregonensis – type locality for species
Restoration of the Miocene cat Pseudaelurus
† Pseudaelurus
† Pseudoblastomeryx
- † Pseudoblastomeryx advena
† Pseudotheridomys
- † Pseudotheridomys pagei
† Pseudotomus
† Pseudotrimylus
- † Pseudotrimylus mawbyi
† Pseudotsuga
- † Pseudotsuga laticarpa
Pteris
- † Pteris silvicola
Pterocarya
- † Pterocarya mixta
- † Pterocarya occidentalis
† Pteronarctos – type locality for genus
- † Pteronarctos goedertae – type locality for species
- † Pteronarctos piersoni – type locality for species
† Pteronepelys
- † Pteronepelys wehrii
† Pulvinisperma
- † Pulvinisperma minutum
Puncturella
- † Puncturella galeata
Pupillaria – tentative report
Purpura
- † Purpura foliata
- † Purpura lurida
Pyramidella – tentative report
Pyrenacantha
- † Pyrenacantha occidentalis
† Pyrisemen
- † Pyrisemen attenuatum
Fruit of a living Pyrus , or pear tree
† Pyrus
- † Pyrus oregonensis

Q

A living Quercus , or oak tree
Quercus
- † Quercus berryi
- † Quercus consimilis
- † Quercus paleocarpa
Querquedula
- † Querquedula pullulans – type locality for species
† Quintacava
- † Quintacava velosida

R

Raja
Rallus
- † Rallus limicola
Raninoides
- † Raninoides washburnei
Recurvirostra
- A living Recurvirostra americana , or American avocet
  † Recurvirostra americana
Retusa
- † Retusa petrosa
- † Retusa tantilla
- † Retusa turneri
Rhabdus
- † Rhabdus schencki
† Rhizocyon
- † Rhizocyon oregonensis
Rhus
- † Rhus lesquereuxii
- † Rhus rooseae
- † Rhus varians
† Ribes
Rimella
Rosa
- † Rosa hilliae
A living member of Rubus , the genus including blackberries (pictured) and raspberries
Rubus
- † Rubus ameyeri
- † Rubus fremdii
† Rudiocyon – type locality for genus
- † Rudiocyon amplidens – type locality for species
† Rudiomys
- † Rudiomys mcgrewi

S

Living Sabal , or palmettos
Sabal
- † Sabal bracknellense
- † Sabal jenkinsii
† Sabia
- † Sabia prefoetida
Saccella
- † Saccella amelga
- † Saccella calkinsi
Salenia
- † Salenia cascadensis – type locality for species
- † Salix schimperi
† Sambucuspermites
- † Sambucuspermites rugulosus
Sanguinolaria
- † Sanguinolaria townsendensis
† Saportaspermum
- † Saportaspermum occidentalis
Sargentodoxa ^[3]
- †* Sargentodoxa globosa ^[3] – type locality for species
Sassia
- † Sassia bilineata
Saxicavella
- † Saxicavella burnsi
Saxidomus
- Shell of a living Saxidomus gigantea , or butter clam
  † Saxidomus gigantea
- † Saxidomus giganteus
† Saxifragispermum
- † Saxifragispermum tetragonalis
† Scabraecarpium
- † Scabraecarpium clarnense
† Scalaritheca
- † Scalaritheca biseriata
Scalina
- † Scalina becki
- † Scalina dickersoni – or unidentified related form
† Scalopoides
- † Scalopoides ripafodiator
† Scapanoscapter
- † Scapanoscapter simplicidens
Scapanus
- † Scapanus latimanus
- † Scapanus proceridens
- † Scapanus shultzi – or unidentified comparable form
Shells in multiple views of a Scaphander canoe bubble sea snail
Scaphander
- † Scaphander impuncatatus
- † Scaphander impunctatus – type locality for species
- † Scaphander stewarti
† Scaphicarpium
- † Scaphicarpium radiatum
† Schisandra
- † Schisandra oregonensis
Schizaster
- † Schizaster diabloensis
† Schizodontomys
- † Schizodontomys greeni
A living Sciurus squirrel
Sciurus
- † Sciurus ballovianus
- † Sciurus wortmani
† Scolecophagus
- † Scolecophagus affinis – type locality for species
† Scutella
- † Scutella gabbi
Searlesia – tentative report
- † Searlesia carlsoni
Semele
- † Semele willamettensis
Sequoia
- † Sequoia affinis
† Seuku
- † Seuku emlongi – type locality for species
† Sewellelodon
- † Sewellelodon predontia – or unidentified comparable form
Sideroxylon
- † sideroxylon? subangularis – type locality for species
Siliqua
- † Siliqua patula
† Simocetus – type locality for genus
- † Simocetus rayi – type locality for species
Reconstruction of a fossilized skull and restorative portrait of the Miocene-Pliocene red panda relative Simocyon
† Simocyon
- † Simocyon primigenius
Simomactra
- † Simomactra falcata
Sinum
- † Sinum obliquum
- † Sinum scopulosum
Solariella
- † Solariella cicca – type locality for species
- † Solariella cidaris
Solemya
- † Solemya ventricosa
Solen
- † Solen sicarius
- † Solen townsendensis
Solena
- † Solena conradi
- † Solena eugenensis
- † Solena novacularis
A living Somatochlora dragonfly
† Somatochlora
- † Somatochlora oregonica – type locality for species
Spermophilus
- † Spermophilus gidleyi
- † Spermophilus mckayensis
- † Spermophilus shotwelli
- † Spermophilus tephrus
- † Spermophilus wilsoni
† Sphaerosperma
- † Sphaerosperma riesii
† Sphenophalos
† Sphenosperma
- † Sphenosperma baccatum
† Spirocrypta
- † Spirocrypta pileum
Spirotropis
- † Spirotropis calodius
- † Spirotropis kincaidi
- † Spirotropis washingtonensis
Spisula
- † Spisula densata
- † Spisula eugenensis
Spizaetus
- † Spizaetus pliogryps
Fossilized partial skulls of the rodent Oligocene-Miocene Steneofiber
† Steneofiber
- † Steneofiber gradatus
Stephanodiscus
- † Stephanodiscus excentricus
- † Stephanodiscus niagarae
- † Stephanodiscus rhombus – type locality for species
Stercorarius
- † Stercorarius schufeldti – type locality for species
Sterna
- † Sterna elegans – tentative report
- † Sterna forsteri
- † Sterna fosteri – tentative report
Fossilized skeleton of the Miocene weasel Sthenictis
Sthenictis
- † Sthenictis junturensis – type locality for species
† Stichopsammia – tentative report
- † Stichopsammia vokesi
† Stockeycarpa
- † Stockeycarpa globosa
† Stomechinus
- † Stomechinus dissimilaris – type locality for species
† Striatisperma
- † Striatisperma coronapunctatum
Strongylocentrotus
Sturnella
† Suavodrillia
- † Suavodrillia winlockensis
Life restoration of the Eocene-Oligocene cow-sized rhinoceros Subhyracodon . Charles R. Knight (1890s).
† Subhyracodon
Surculites
- † Surculites condonana
- † Surculites wynoocheensis
Sveltella
- † Sveltella exiliplex
- † Sveltella keaseyensis – type locality for species
Symplocos
- † Symplocos nooteboomii

T

† Tanyoplatanus
- † Tanyoplatanus cranei
A living Tapirus , or tapir
Tapirus
- † Tapirus californicus – or unidentified comparable form
Tapiscia
- † Tapiscia occidentalis
Taranis
- † Taranis columbiana
† Tardontia
- † Tardontia occidentale – or unidentified comparable form
Taxidea
† Taxus
- † Taxus masonii
Tegula
- † Tegula stantoni
† Tejonia
- † Tejonia moragai
Restoration of the Miocene-Pliocene rhinoceros Teleoceras
† Teleoceras
- † Teleoceras fossiger
- † Teleoceras hicksi
- † Teleoceras medicornutum
† Teletaceras
- † Teletaceras radinskyi – type locality for species
Shell of a Tellina , or tellin
Tellina
- † Tellina aduncanasa
- † Tellina aragonia
- † Tellina emacerata
- † Tellina eugenia
- † Tellina idae – or unidentified related form
- † Tellina lincolnensis
- † Tellina pittsburgensis
- † Tellina quasimacoma
† Temnocyon
- † Temnocyon altigenis
- † Temnocyon fingeruti – type locality for species
† Tenudomys – or unidentified comparable form
† Tenuisperma
- † Tenuisperma ellipticum
† Tephrocyon
- † Tephrocyon rurestris
Terebratalia
- † Terebratalia occidentalis
Terebratulina
- † Terebratulina unguicula
Terminalia
- † Terminalia oregona
Foliage and cones of a living Tetraclinis , or arar tree
† Tetraclinis
- † Tetraclinis potlachensis
Thais
- † Thais lamellosa
- † Thais lima – or unidentified related form
† Thanikaimonia
- † Thanikaimonia geniculata
Thesbia – report made of unidentified related form or using admittedly obsolete nomenclature
- † Thesbia antiselli : synonym of † Xenoturris antiselli (F. Anderson & B. Martin, 1914)
† Thinohyus
- † Thinohyus lentus
Thomomys
- † Thomomys townsendii
Thracia
- † Thracia condoni
- † Thracia keaseyensis – type locality for species
- † Thracia trapezoides
Fossilized skull of the Miocene oreodont mammal Ticholeptus
† Ticholeptus
- † Ticholeptus zygomaticus
† Ticholepus
- † Ticholepus zygomaticus
† Tiffneycarpa
- † Tiffneycarpa scleroidea
Tilia
- † Tilia aspera
- † Tilia circularis
- † Tilia fossilensis
- † Tilia lamottei
- † Tilia pedunculata
- † Tilia penduculata
† Tinomiscoidea
- † Tinomiscoidea occidentalis
Tinospora
- † Tinospora elongata
- † Tinospora hardmanae
Foliage of a living Torreya , or nutmeg yew
† Torreya
- † Torreya clarnensis
- † Torreya masonii
Totanus
- † Totanus melanoleucas
† Toxicodendron
- † Toxicodendron wolfei
Trema
- † Trema nucilecta
Tresus
- † Tresus pajaroanus
Shell of a Trichotropis cap sea snail
Trichotropis
- † Trichotropis cancellata
- † Trichotropis insignis
† Trigonostela
- † Trigonostela oregonensis
† Tripartisemen
- † Tripartisemen bonesii
† Triplascapha
- † Triplascapha collinsonae
† Triplexivalva
- † Triplexivalva rugata
† Triplochitioxylon – type locality for genus
- † Triplochitioxylon oregonensis – type locality for species
† Trisepticarpium
- † Trisepticarpium minutum
† Tritonifusus
- † Tritonifusus rectirostis
Trochita
Shell of a Trophon murex snail
Trophon
- † Trophon halibrectus
- † Trophon kernensis
- † Trophon platacantha – type locality for species
† Truncatisemen
- † Truncatisemen sapotoides
† Tsaphanomys – type locality for genus^[2]
- † Tsaphanomys shotwelli ^[2]
† Tsuga
- † Tsuga sonomensis
Turricula
- † Turricula emerita
- † Turricula keaseyensis
† Turrinosyrinx
- † Turrinosyrinx nodifera
- † Turrinosyrinx nodilifera
- † Turrinosyrinx packardi – or unidentified comparable form
Turris
- † Turris coli
- † Turris impecunia
- † Turris perversa
- † Turris smithi
Fossilized shells of the Late Jurassic-modern tower snail Turritella
Turritella
- † Turritella buwaldana
- † Turritella keaseyense
- † Turritella keaseyensis – type locality for species
- † Turritella oregonensis
- † Turritella pittsburgensis
- † Turritella uvasana
† Tylocephalonyx
Tympanuchus
- † Tympanuchus pallidicinctus
† Typhoides
- † Typhoides buzekii

U

A living Ulmus , or elm
Ulmus
- † Ulmus chaneyi
- † Ulmus speciosa
† Ulospermum
- † Ulospermum hardingae
†Unknown
† Unknown dicotyledonous
† Unknown monocotyledonous
† Ursavus
- † Ursavus primaevus – or unidentified comparable form

V

Venericardia
- † Venericardia aragonia – or unidentified comparable form
- † Venericardia hornii
- † Venericardia merriami – or unidentified comparable form
- † Venericardia planicosta
† Vertipecten
- † Vertipecten fucanus – or unidentified comparable form
Leaves and fruit of a living Viburnum .
† Viburnum
- † Viburnum tubmanum
Leaves and fruit of a living Vitis , or grapevine
Vitis
- † Vitis magnisperma
- † Vitis tiffneyi
Vulpes
- † Vulpes stenognathus

W

† Wheelera
- † Wheelera lingnicrusta

X

A living Xema sabini , or Sabine's gull
Xema
- † Xema sabinii
† Xenicohippus
- † Xenicohippus craspedotum
† Xylotitan – type locality for genus
- † Xylotitan cenosus – type locality for species

Y

† Yaquinacetus – type locality for genus^[4]
- † Yaquinacetus meadi – type locality for species^[4]
Yoldia
- † Yoldia cooperii – or unidentified comparable form
- † Yoldia impressa
- † Yoldia oregona
- † Yoldia seminuda
- † Yoldia tenuissima

Z

Zalophus
- A living Zalophus californianus , or California sea lion
  † Zalophus californianus
† Zanthopsis
- † Zanthopsis rathbunae – type locality for species
Zelkova
- † Zelkova hesperia
- † Zelkova oregoniana
† Zingiberopsis

References

1 2 3 4 Gerald R. Smith; Jay Van Tassell (2019). "Fishes of the Mio-Pliocene Western Snake River Plain and vicinity. V. Keating, Always Welcome Inn, and Imbler Fish paleofaunas, NE Oregon: Tests of Miocene-Pliocene drainage connections". Miscellaneous Publications. Museum of Zoology, University of Michigan. 204 (5): 1–33. hdl:2027.42/150494.
1 2 3 Robert A. Martin; Richard J. Zakrzewski (2019). "On the ancestry of woodrats". Journal of Mammalogy. 100 (5): 1564–1582. doi:10.1093/jmammal/gyz105.
1 2 Manchester, S. R. (1999). "Biogeographical relationships of North American tertiary floras". Annals of the Missouri Botanical Garden. 86: 472–522. doi:10.2307/2666183. JSTOR 2666183.
1 2 Olivier Lambert; Stephen J. Godfrey; Erich M. G. Fitzgerald (2019). "Yaquinacetus meadi, a new latest Oligocene–early Miocene dolphin (Cetacea, Odontoceti, Squaloziphiidae, fam. nov.) from the Nye Mudstone (Oregon, U.S.A.)". Journal of Vertebrate Paleontology. 38 (6): e1559174. doi:10.1080/02724634.2018.1559174. S2CID 108903672.

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database" . Retrieved 7 August 2017.

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[Mystocheilus-1] 1 2 3 4 Gerald R. Smith; Jay Van Tassell (2019). "Fishes of the Mio-Pliocene Western Snake River Plain and vicinity. V. Keating, Always Welcome Inn, and Imbler Fish paleofaunas, NE Oregon: Tests of Miocene-Pliocene drainage connections". Miscellaneous Publications. Museum of Zoology, University of Michigan. 204 (5): 1–33. hdl:2027.42/150494.

[Protorepomys-2] 1 2 3 Robert A. Martin; Richard J. Zakrzewski (2019). "On the ancestry of woodrats". Journal of Mammalogy. 100 (5): 1564–1582. doi:10.1093/jmammal/gyz105.

[Manchester1999-3] 1 2 Manchester, S. R. (1999). "Biogeographical relationships of North American tertiary floras". Annals of the Missouri Botanical Garden. 86: 472–522. doi:10.2307/2666183. JSTOR 2666183.

[lambert-godfrey-fitzgerald-2019-4] 1 2 Olivier Lambert; Stephen J. Godfrey; Erich M. G. Fitzgerald (2019). "Yaquinacetus meadi, a new latest Oligocene–early Miocene dolphin (Cetacea, Odontoceti, Squaloziphiidae, fam. nov.) from the Nye Mudstone (Oregon, U.S.A.)". Journal of Vertebrate Paleontology. 38 (6): e1559174. doi:10.1080/02724634.2018.1559174. S2CID 108903672.

[1]

[2]

[3]

[4]

List of the Cenozoic life of Oregon

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

References