List of the prehistoric life of Colorado

This list of the prehistoric life of Colorado contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Colorado.

Precambrian

The Paleobiology Database records no known occurrences of Precambrian fossils in Colorado.

Paleozoic

Main article: List of the Paleozoic life of Colorado

Selected Paleozoic taxa of Colorado

• † Actinoceras
• † Aglaocrinus
• † Amorphognathus
• † Amplexus
• † Archaeocidaris

• 

  Life restoration of the Middle-Late Ordovician jawless fish Astraspis

  † Astraspis – type locality for genus
  • † Astraspis desiderata – type locality for species
• † Athyris
• † Aviculopecten
• † Calamites
  • † Calamites cistii
  • † Calamites cruciatus
• † Callipteris
  • † Callipteris lyratifolia – or unidentified comparable form
• † Camarotoechia
• † Caninia

• 

  Fossil of the Ordovician-Silurian tabulate coral Catenipora

  † Catenipora
• † Ceraurinus
• † Charactoceras – tentative report
• † Chirognathus
• † Composita
  • † Composita ovata
• † Conocardium
• † Cordaites
• † Cornulites
• † Crania
• † Ctenacanthus
  • † Ctenacanthus buttersi
  • † Ctenacanthus furcicarinatus
• † Cupressocrinites

• 

  Restoration of the Permian synapsid (mammal precursor) Cutleria

  † Cutleria – type locality for genus
  • † Cutleria wilmarthi – type locality for species
• † Cyclopteris
• † Cyrtogomphoceras
• † Cyrtospirifer
  • † Cyrtospirifer animasensis
  • † Cyrtospirifer whitneyi
• † Echinosphaerites – tentative report
• † Edestus
• † Endoceras
• † Eretmocrinus

• 

  Life restoration of the Carboniferous-Permian amphibian Eryops

  † Eryops
• † Euomphalus
• † Girvanella
• † Halysites
• † Isalaux – type locality for genus
• † Isonema
• † Kionoceras
• † Lambeoceras
• † Lepidodendron
• † Lepidostrobus
• † Limnoscelis
• † Lingula
• † Meristella
• † Neospirifer
  • † Neospirifer goreii
• † Neuropteris
  • † Neuropteris auriculata
  • † Neuropteris gigantea – tentative report
  • † Neuropteris heterophylla

• 

  Restoration of the Carboniferous-Permian synapsid (mammal precursor) Ophiacodon

  † Ophiacodon
• † Oradectes
• † Ormoceras
• † Orthoceras
• † Oulodus
• † Paladin – tentative report
• † Pecopteris
  • † Pecopteris arborescens
• † Plaesiomys
• † Platyceras

• 

  Life restoration of the Carboniferous-Permian sail-backed amphibian Platyhystrix

  † Platyhystrix
  • † Platyhystrix rugosus
• † Pugnax
• † Receptaculites
• † Samaropsis
• † Sandia
• † Seymouria
• † Sigillaria
  • † Sigillaria elegans – or unidentified comparable form
• † Sphenophyllum
• † Sphenopteris
• † Spirifer
  • † Spirifer centronatus
• Spirorbis
• † Spyroceras
• † Stigmaria
• † Strepsodiscus – type locality for genus
• † Strophomena
• † Syringopora

• 

  Fossil of the Silurian-Carboniferous crinoid ("sea lily") Taxocrinus (right)

  † Taxocrinus
• † Walchia
• † Westonoceras

Mesozoic

Main article: List of the Mesozoic life of Colorado

Selected Mesozoic taxa of Colorado

• Acmaea
• † Adocus
• † Albanerpeton
  • † Albanerpeton nexuosus
• † Albertosaurus – tentative report

• 

  Life restoration of the Late Jurassic theropod dinosaur Allosaurus

  † Allosaurus – type locality for genus
  • † Allosaurus fragilis – type locality for species
• † Amblotherium – type locality for genus
• Amia
• † Amphicoelias – type locality for genus
  • † Amphicoelias altus – type locality for species
• † Amphicotylus
  • † Amphicotylus lucasii – type locality for species
• † Anaklinoceras
• † Anisoceras
• † Anomia
• † Anomoepus – tentative report
• † Apateodus
• † Apatopus

• 

  Comparison of A. ajax (orange) and A. louisae (red) with a human (blue) and Brontosaurus parvus (green)

  † Apatosaurus – type locality for genus
  • † Apatosaurus ajax – type locality for species
  • † Apatosaurus louisae – type locality for species
• † Arenicolites
• Aspideretes
• Astarte
• † Atlantosaurus
  • † Atlantosaurus immanis – type locality for species
• † Axonoceras

• 

  Fossilized shell of the Late Cretaceous ammonoid cephalopod Baculites

  † Baculites
  • † Baculites aquilaensis
  • † Baculites asper
  • † Baculites clinolobatus – type locality for species
  • † Baculites codyensis
  • † Baculites compressus
  • † Baculites cuneatus
  • † Baculites grandis
  • † Baculites haresi
  • † Baculites mclearni
  • † Baculites meeki – type locality for species
  • † Baculites reesidei
• † Barosaurus

• 

  Fossilized skeleton of the Cretaceous turtle Basilemys

  † Basilemys
• † Bison
  • † Bison alticornis – type locality for species
• † Borealosuchus
  • † Borealosuchus sternbergii
• † Brachauchenius – or unidentified comparable form
• † Brachiosaurus – type locality for genus
  • † Brachiosaurus altithorax – type locality for species
• † Brachychampsa
  • † Brachychampsa montana
• † Brachyphyllum

• 

  Life restoration of a herd of the Late Jurassic sauropod dinosaur Brontosaurus

  † Brontosaurus
  • † Brontosaurus excelsus
  • † Brontosaurus yahnahpin
• † Calycoceras
• † Camarasaurus – type locality for genus
  • † Camarasaurus grandis
  • † Camarasaurus lewisi
  • † Camarasaurus supremus – type locality for species
• † Camptosaurus – type locality for genus
  • † Camptosaurus dispar – type locality for species
• Carcharias
• † Caririchnium
• † Cedrobaena
• † Ceratodus – type locality for genus

• 

  Restoration of the Late Jurassic ceratosaur Ceratosaurus

  † Ceratosaurus – type locality for genus
  • † Ceratosaurus nasicornis – type locality for species
• Cerithiopsis
• † Champsosaurus
• Chara
• † Chelonipus
• † Chinlea
• † Chirotherium
  • † Chirotherium lulli
• † Cimolichthys
  • † Cimolichthys nepaholica
• † Cimolodon – or unidentified comparable form

• 

  Life restoration of the face of the Late Cretaceous multituberculate mammal Cimolomys

  † Cimolomys
• † Cionodon – type locality for genus
  • † Cionodon arctatus – type locality for species
• † Cirroceras
• † Clidastes
• † Coelophysis – tentative report
• † Coelurus
  • † Coelurus fragilis
• † Compsemys
• † Coniasaurus
• Corbula
• † Crenella
• † Cretolamna
  • † Cretolamna appendiculata
• † Cretoxyrhina
  • † Cretoxyrhina mantelli
• Cucullaea
• Cuspidaria
• † Didymoceras
  • † Didymoceras cheyennense
  • † Didymoceras stevensoni
• † Dinehichnus
• † Dinochelys

• 

  Diagram illustrating the Late Jurassic sauropod dinosaurs Diplodocus carnegii (green) and D. hallorum (orange) with an anachronistic human to scale.

  † Diplodocus – type locality for genus
  • † Diplodocus lacustris – type locality for species
  • † Diplodocus longus – type locality for species
• † Diplosaurus
• Discinisca
• † Discoscaphites
  • † Discoscaphites conradi
• † Docodon
• † Dorsetisaurus
• † Dorsetochelys
• † Dryosaurus
  • † Dryosaurus altus
• † Edmontonia

• 

  Skeletal reconstruction and restored soft tissue of the Late Cretaceous duck-billed dinosaur Edmontosaurus regalis with an anachronistic human to scale

  † Edmontosaurus
  • † Edmontosaurus regalis – type locality for species
• Eilenodon – type locality for genus
• † Elopopsis
• † Enchodus
  • † Enchodus gladiolus – or unidentified comparable form
  • † Enchodus shumardi – or unidentified comparable form
• † Equisetum
• † Eubrontes
  • † Eubrontes giganteus
• † Eucalycoceras
• † Euomphaloceras
• † Eutrephoceras
• † Eutretauranosuchus – type locality for genus
  • † Eutretauranosuchus delfsi – type locality for species
• † Exiteloceras
• † Exogyra

• 

  Fossilized shell of the Late Cretaceous ammonoid cephalopod Fagesia

  † Fagesia
• Ficus
• † Forresteria
• † Fruitachampsa – type locality for genus
  • † Fruitachampsa callisoni – type locality for species
• † Fruitadens – type locality for genus
  • † Fruitadens haagarorum – type locality for species
• † Fruitafossor – type locality for genus
  • † Fruitafossor windscheffeli – type locality for species
• † Galeamopus
  • † Galeamopus pabsti
• † Glirodon
  • † Glirodon grandis
• † Glyptops

• 

  Restoration of the Late Jurassic-Early Cretaceous crocodile relative Goniopholis

  † Goniopholis
• † Grallator
• † Hallopus
  • † Hallopus victor – type locality for species
• † Haplocanthosaurus – type locality for genus
  • † Haplocanthosaurus delfsi – type locality for species
  • † Haplocanthosaurus priscus – type locality for species
• † Hemicalypterus
• † Herrickiceras
• † Hoploscaphites
  • † Hoploscaphites birkelundae
  • † Hoploscaphites nicolletii
• † Hulettia – report made of unidentified related form or using admittedly obsolete nomenclature
• † Hypsirophus – type locality for genus
• † Ichthyodectes
• † Ignotornis – type locality for genus

• 

  Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size

  † Inoceramus
  • † Inoceramus altus
  • † Inoceramus altusiformis
  • † Inoceramus anomalus
  • † Inoceramus arnoldi
  • † Inoceramus balticus
  • † Inoceramus brancoiformis
  • † Inoceramus bueltenensis
  • † Inoceramus cordiformis
  • † Inoceramus crippsi – or unidentified related form
  • † Inoceramus deformis
  • † Inoceramus erectus
  • † Inoceramus flavus
  • † Inoceramus grandis
  • † Inoceramus longealatus
  • † Inoceramus muelleri - or unidentified loosely related form
  • † Inoceramus oblongus
  • † Inoceramus pictus
  • † Inoceramus prefragilis
  • † Inoceramus rutherfordi – or unidentified comparable form
  • † Inoceramus tenuistriatus – tentative report
• † Ischyrhiza
  • † Ischyrhiza avonicola – or unidentified comparable form

• 

  Fossilized shell of the Late Cretaceous ammonoid cephalopod Jeletzkytes

  † Jeletzkytes
  • † Jeletzkytes brevis
  • † Jeletzkytes dorfi
  • † Jeletzkytes nodosus
• † Kepodactylus – type locality for genus
  • † Kepodactylus insperatus – type locality for species
• † Laosaurus – report made of unidentified related form or using admittedly obsolete nomenclature
• Lepisosteus – tentative report
• † Leptalestes – tentative report
  • † Leptalestes cooki
• † Leptolepis – or unidentified comparable form
• Lima
• † Lingula
• † Lioestheria
• † Lisserpeton
  • † Lisserpeton bairdi
• † Lonchidion
• † Lucina
• † Macelognathus
• † Magnoavipes
• † Marshosaurus – or unidentified comparable form

• 

  Fossilized skull of the Late Cretaceous multituberculate mammal Meniscoessus

  † Meniscoessus
  • † Meniscoessus collomensis – type locality for species
  • † Meniscoessus robustus – or unidentified comparable form
• † Mesadactylus – type locality for genus
  • † Mesadactylus ornithosphyos – type locality for species
• † Mesodma
  • † Mesodma formosa – or unidentified comparable form
• † Mesojassoides – type locality for genus
  • † Mesojassoides gigantea – type locality for species
• † Metoicoceras
  • † Metoicoceras geslinianum
• † Micropycnodon
• † Modiolus
• † Morosaurus
• † Morrolepis
• † Myledaphus
  • † Myledaphus bipartitus

• 

  Fossilized skeleton of the Late Jurassic armored dinosaur Mymoorapelta

  † Mymoorapelta – type locality for genus
  • † Mymoorapelta maysi – type locality for species
• Myrica
• † Nanosaurus – type locality for genus
  • † Nanosaurus agilis – type locality for species
  • † Nanosaurus rex
• Natica
• † Neocardioceras
  • † Neocardioceras densicostatum – type locality for species
  • † Neocardioceras juddii
  • † Neocardioceras laevigatum
  • † Neocardioceras minutum
  • † Neocardioceras uptonense
• † Neoptychites

• 

  Restoration of several species of the Late Cretaceous ammonoid cephalopod Nostoceras

  † Nostoceras
  • † Nostoceras approximans – or unidentified comparable form
  • † Nostoceras larimerense – type locality for species
  • † Nostoceras monotuberculatum
  • † Nostoceras obtusum – or unidentified comparable form
  • † Nostoceras splendidum – or unidentified comparable form
• Nucula
  • † Nucula percrassa
• † Odaxosaurus
  • † Odaxosaurus piger
• † Opisthias
• † Opisthotriton
• † Ornitholestes – tentative report
• † Ornithomimipus
• † Ornithomimus – type locality for genus
  • † Ornithomimus velox – type locality for species
• Ostrea
• † Othnielia – tentative report
• † Othnielosaurus
  • † Othnielosaurus consors
• † Oxytoma

• 

  Fossilized skull of the Late Cretaceous dome-headed dinosaur Pachycephalosaurus

  † Pachycephalosaurus
• † Pachyrhizodus
  • † Pachyrhizodus minimus
• † Palaeobalistum
• † Palaeopteryx – type locality for genus
• † Parabrontopodus – type locality for genus
• † Paramacellodus
• † Paressonodon – type locality for genus
• † Parikimys – type locality for genus
• † Parviraptor
• † Pentaceratops
  • † Pentaceratops sternbergii
• † Pinna
• † Placenticeras
  • † Placenticeras meeki

• 

  Fossilized shell of the Cretaceous marine bivalve Platyceramus

  † Platyceramus
  • † Platyceramus ahsenensis
  • † Platyceramus cycloides
  • † Platyceramus mantelli - or unidentified loosely related form
  • † Platyceramus platinus
• † Platyognathus
• † Plesiobaena
• † Polyonax – type locality for genus
  • † Polyonax mortuarius – type locality for species
• † Preprismatoolithus
• † Priacodon
  • † Priacodon fruitaensis – type locality for species

• 

  Fossilized skull of the Late Cretaceous mosasaur Prognathodon

  † Prognathodon
  • † Prognathodon overtoni
  • † Prognathodon stadtmani – type locality for species
• Propeamussium
• † Protocardia
• † Protosphyraena
• Prunus
• † Pseudoperna
  • † Pseudoperna congesta
• † Pseudotetrasauropus – tentative report
• † Pteraichnus
• † Ptychodus
  • † Ptychodus anonymus
  • † Ptychodus decurrens
  • † Ptychodus occidentalis
  • † Ptychodus whipplei
• Pycnodonte
  • † Pycnodonte newberryi
• Rhinobatos
  • † Rhinobatos incertus
• † Rosselia
• † Saurillodon
• † Scapherpeton

• 

  Fossilized shell of the Late Cretaceous ammonoid cephalopod Scaphites

  † Scaphites
  • † Scaphites binneyi
  • † Scaphites depressus
  • † Scaphites hippocrepis – or unidentified comparable form
  • † Scaphites nodosus
• † Scoyenia
• † Selaginella
• † Semionotus
• † Sphenodiscus
  • † Sphenodiscus pleurisepta
• Squalicorax
  • † Squalicorax curvatus
  • † Squalicorax falcatus
  • † Squalicorax pristodontus
• † Squatirhina
  • † Squatirhina americana

• 

  Restoration of the Late Jurassic stegosaur Stegosaurus

  † Stegosaurus – type locality for genus
  • † Stegosaurus armatus – type locality for species
  • † Stegosaurus stenops – type locality for species
  • † Stegosaurus ungulatus
• † Stenomyti – type locality for genus
  • † Stenomyti huangae – type locality for species
• † Stokesosaurus – or unidentified comparable form
• † Supersaurus – type locality for genus
  • † Supersaurus vivianae – type locality for species
• Tellina
• † Tenea
• Teredo
• † Thalassomedon – type locality for genus
  • † Thalassomedon hanningtoni – type locality for species
• † Theiophytalia – type locality for genus
  • † Theiophytalia kerri – type locality for species
• † Therangospodus – or unidentified comparable form
• † Thescelosaurus
• † Titanosaurus
  • † Titanosaurus montanus – type locality for species

• 

  Fossilized skulls of the Late Cretaceous horned dinosaurs Torosaurus (A) and Triceratops (B) to scale

  † Torosaurus
  • † Torosaurus latus
• † Torvosaurus – type locality for genus
  • † Torvosaurus tanneri – type locality for species
• † Treptichnus
• † Triceratops
  • † Triceratops galeus – type locality for species
  • † Triceratops horridus
• † Trinacromerum – or unidentified comparable form
• Turritella
• † Tylosaurus
  • † Tylosaurus proriger

• 

  Fossilized skeleton of the Late Cretaceous tyrannosaur Tyrannosaurus

  † Tyrannosaurus
  • † Tyrannosaurus rex
• † Vascoceras
• Viviparus
• † Volviceramus
• † Walteria – type locality for genus
• † Watinoceras
  • † Watinoceras coloradoense – type locality for species
• † Websteria
• † Xiphactinus
  • † Xiphactinus audax

Cenozoic

Main article: List of the Cenozoic life of Colorado

Selected Cenozoic taxa of Colorado

• 

  A living Abies , or fir tree

  Abies
• † Absyrtus
• † Acalles
• Abies
• † Absyrtus
• † Acalles
• Acer
• † Acilius
• Acris
• † Acrostichum
• † Adalia
• † Adelopsyche – type locality for genus
• † Adocus
• Aegialia
• † Aelurodon

• 

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

  † Aepycamelus
  • † Aepycamelus giraffinus
• † Aeshna
• Agabus
• † Agallia
• † Agathemera
• Agelaius
• † Agnotocastor
• Agrilus
• Agriotes
• † Agromyza
• † Agulla
  • † Agulla protomaculata – type locality for species

• 

  Foliage and fruits of an Ailanthus tree

  † Ailanthus
• † Aletodon
• Aleurites
• † Alforjas – tentative report
• † Allognathosuchus
• † Allophylus
• Altica
• † Alysia
• Amara
• † Amauropilio
• † Amblycorypha – tentative report
• † Amblyteles
• † Ambystoma
  • † Ambystoma tigrinum

• 

  Life restoration of the Miocene elephant relative Amebelodon . Margret Flinsch (1932).

  † Amebelodon
• Amelanchier
• Amia
• †Ammophila
• † Ampelopsis
• † Amphechinus
• † Amphicerus
• † Amphicyon
  • † Amphicyon galushai
  • † Amphicyon ingens

• 

  Fossilized skull of the Miocene saber-toothed cat Amphimachairodus

  † Amphimachairodus
• † Anabrus
• Anas
• † Anasa
• † Anatis
• † Anchitherium
• Andrena
• † Andrias
• † Andricus
• † Anelaphus
• † Anemia
• † Angustidens
• Anisotoma
• † Anobium
• † Anomala
• † Anomalon
• Anser
• † Antas
• Anthaxia
• † Antherophagus

• 

  A living Anthidium , or carder bee

  † Anthidium
  • † Anthidium exhumatum – type locality for species
  • † Anthidium scudderi – type locality for species
• † Anthomyia
• Anthonomus
• † Anthophora
• Antilocapra
  • † Antilocapra americana
• † Antocha
• Aphaenogaster
  • † Aphaenogaster donisthorpei – type locality for species
  • † Aphaenogaster mayri – type locality for species
• † Aphelops
• Aphodius
• Aphrophora
• Apion
• † Apolysis
• Aquila
  • † Aquila chysaetos
• Araneus
• † Archaeotherium
• † Archimyrmex – type locality for genus
  • † Archimyrmex rostratus – type locality for species
• † Archiponera – type locality for genus
  • † Archiponera wheeleri – type locality for species

• 

  Life restoration of the Paleocene mammal Arctocyon

  † Arctocyon
• † Argia
• † Arhopalus
• † Aristolochia
• † Artocarpus
• † Asimina
• Asio
• † Asplenium
• † Aster
• † Astronium
• Ataenius
• † Athalia

• 

  A living Athous click beetle

  † Athous
• † Athyana
• † Attagenus
• † Auraria – type locality for genus
• Aythya
  • † Aythya affinis
  • † Aythya americana
• † Aztlanolagus
• † Baena
• † Baris

• 

  Life restoration of the Paleocene-Eocene pantodont mammal Barylambda

  † Barylambda
• † Bassus
• † Bathornis – type locality for genus
  • † Bathornis veredus – type locality for species
• † Bathygenys
• † Bathyopsis
• † Belyta
• Bembidion
  • † Bembidion constricticolle
• † Bembidium
• † Beris
• Betula
• Bibio
• † Bibiodes
• † Bidessus
• Bison
  • † Bison antiquus – or unidentified comparable form

  • 

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

    † Bison latifrons
• † Blechnum
• Bledius
• Boletina
• † Borealosuchus
• † Borophagus
  • † Borophagus pugnator
• † Brachinus
• † Brachycrus
• Brachylagus
• † Brachyprotoma
  • † Brachyprotoma obtusata
• † Brachypsalis

• 

  Skeletal reconstruction of the Eocene-Oligocene bear-dog Brachyrhynchocyon

  † Brachyrhynchocyon
• † Brachyspathus – type locality for genus
• Bracon
• † Bruchus
• Bubo
  • † Bubo virginianus
• Bufo
  • † Bufo cognatus
  • † Bufo woodhousei
• † Buprestis
• † Bursera

• 

  A living Buteo hawk

  Buteo
• † Caesalpinia
• † Calcarius
  • † Calcarius lapponicus
  • † Calcarius ornatus
• † Calippus
• † Caliroa
• † Callimoxys
• † Callomyia – tentative report
• Calosoma
• † Calyptapis – type locality for genus
  • † Calyptapis florissantensis – type locality for species

• 

  Life restoration of the Pliocene-Holocene camel Camelops

  † Camelops
  • † Camelops hesternus
• Camponotus
• Canis
  • † Canis edwardii – or unidentified comparable form
  • † Canis latrans
• † Cantius
  • † Cantius abditus
  • † Cantius frugivorus
  • † Cantius mckennai
  • † Cantius ralstoni
• † Capnobotes
• † Capsus

• 

  A living Carabus ground beetle

  Carabus
• † Cardiophorus
• † Cardiospermum
• † Carpocyon
• Carpodacus
  • † Carpodacus cassinii
• † Carpophilus
• Carya
• Castanea
• † Catopsalis
  • † Catopsalis alexanderi – type locality for species
• † Cecidomyia – tentative report
• Cedrela
• † Celastrus
• Celtis
• † Centron – type locality for genus
• † Ceratina

• 

  Life restoration of the Paleocene-Eocene crocodilian Ceratosuchus

  † Ceratosuchus – type locality for genus
  • † Ceratosuchus burdoshi – type locality for species
• † Ceraturgus
• Cercidiphyllum
• Cercis
• † Cercocarpus
• † Cercopis
• Cervus
  • † Cervus elaphus
• Ceutorhynchus
• Chaetodipus
  • † Chaetodipus hispidus
• † Chalcis
• † Chalybion
• † Chamaecyparis

• 

  A stand of living Chamaedorea palms

  † Chamaedorea
• Charina
• † Chauliognathus
• Cheilosia
• † Chelonus
• † Chilocorus
• † Chionaemopsis – type locality for genus
• Chironomus
• Chondestes
  • † Chondestes grammacus
• † Chriacus
• † Chrysis
• † Chrysobothris
• † Chrysogaster
• Chrysomela
• † Cicada
• † Cicadella
• † Cimbex
• † Cimexomys
  • † Cimexomys arapahoensis – type locality for species
  • † Cimexomys minor

• 

  A living Cinnamomum , or cinnamon tree

  Cinnamomum
• Cissus
• † Cixius – tentative report
• † Cladius
• † Cladura
• † Clastoptera
• † Cleonus
• † Closterocoris
  • † Closterocoris elegans – type locality for species
• † Clubiona
• † Clytus
• † Coccinella
• † Coeliodes
• Colaptes

  • 

    A living Colaptes auratus , or northern flicker

    † Colaptes auratus
• † Colaspis
• † Collops
• † Colopterus
• † Colubrina
• † Compsemys
• † Coniatus
• Conotelus
  • † Conotelus obscurus
• † Conotrachelus
• † Conzattia
• † Copecion
• † Copelemur
• † Copidita
• Corixa
• † Corizus
• † Cormocyon
• † Cormohipparion
• Cornus
• Corticaria
• Corvus
  • † Corvus brachyrhynchos
  • † Corvus corax
• † Corylus

• 

  Life restoration of the Paleocene-Eocene pantodont mammal Coryphodon . Heinrich Harder (1920).

  † Coryphodon
• Cossonus
• † Cotinus
• † Crabro
• † Cratacanthus
• Crataegus
• Crotalus
  • † Crotalus viridis
• †Croton
• † Cryptocephalus
• † Cryptocheilus
• Cryptophagus
• Cryptorhynchus
• † Cryptus

• 

  A living Culex mosquito

  Culex
• † Curculio
• † Cuterebra
• † Cyclotrachelus
• † Cydamus
• † Cylindrotoma
• † Cynarctoides
  • † Cynarctoides acridens
• † Cynelos
• Cynomys
• † Cyphomyia
• † Cypris
• † Daphne
• Daphnia

• 

  Life restoration of the Eocene-Miocene bear dog Daphoenus

  † Daphoenus
• †Davidia
• † Denaeaspis – type locality for genus
  • † Denaeaspis chelonopsis – type locality for species
• † Dennstaedtia
• † Dermatobia
• † Dermestes
• † Diabrotica
• † Diacodexis
• † Dialysis
• Diamesa
• † Dianthidium
• † Diceratherium
• † Dicerca
• Dicranomyia
• † Dicranota
• † Dictyla
• † Didymictis
• † Didymosphaeria
• † Dilophodon

• 

  Life restoration of the Eocene-Miocene false saber-toothed cat Dinictis . Robert Bruce Horsfall (1913).

  † Dinictis
• † Dinohippus
• † Dioctria
• Dioscorea
• † Diploptera
• Diplotaxis – tentative report
• Diplotaxis
• Dipodomys
  • † Dipodomys ordii
• Dipteronia
• † Dissacus
• † Docimus – type locality for genus
• Dodonaea

• 

  Preserved Dolichoderus ant

  Dolichoderus
  • † Dolichoderus antiquus – type locality for species
  • † Dolichoderus kohlsi – type locality for species
  • † Dolichoderus rohweri – type locality for species
• † Dominickus – type locality for genus
  • † Dominickus castnioides – type locality for species
• † Domnina
• Donacia
• Dorytomus
• † Doxocopa
• † Drassonax

• 

  Fossilized horns, jaws, and limb bones of the Miocene deer relative Dromomeryx

  † Dromomeryx
  • † Dromomeryx borealis – type locality for species
• † Dryobius
• Dryopteris
• Dyschirius
• † Dysdercus
• † Echmatemys
• † Ectobius
• † Ectocion
• † Ectoconus
• † Elaeomyrmex – type locality for genus
  • † Elaeomyrmex coloradensis – type locality for species
  • † Elaeomyrmex gracilis – type locality for species
• † Elaphidion
• Elaphropus
• † Elater
• Eleodes
• †Emiliana – type locality for genus
  • † Emiliana alexandri – type locality for species
• † Empis
• † Enallagma
• Engelhardtia
• Enochrus
• † Entimus

• 

  Life restoration of a pair of the Eocene uintathere mammal Eobasileus . Charles R. Knight (1890s).

  † Eobasileus
  • † Eobasileus cornutus
• † Eocuculus – type locality for genus
• † Eogryllus
• † Eohippus
  • † Eohippus angustidens
• † Eosacantha – type locality for genus
  • † Eosacantha delocranioides – type locality for species
• † Eotitanops
• Ephedra
• † Ephemera
• † Epicaerus
• Epicauta
• † Epicyon
  • † Epicyon haydeni
• † Epihippus
• Epuraea
• † Epyris
• † Equisetum
• Equus
  • † Equus conversidens
  • † Equus francisci

  • 

    Restoration of the Pliocene-Holocene horse Equus scotti , or Scott's horse

    † Equus scotti – or unidentified comparable form
  • † Equus simplicidens
• Eremophila
  • † Eremophila alpestris
• Erethizon
• Eriocampa
• † Eriophyes – tentative report
• † Eristalis
• † Ernobius
• † Ethmia
• † Eubazus
• † Eucnemis
• † Eucommia
• Eugenia

• 

  Fossil of the Eocene ant Eulithomyrmex

  † Eulithomyrmex – type locality for genus
  • † Eulithomyrmex rugosus – type locality for species
  • † Eulithomyrmex striatus – type locality for species
• † Euparius
• Euphorbia
• † Eurytoma
• Eutamias
  • † Eutamias minimus – or unidentified comparable form
• † Exochus
• Fagus
• Falcipennis
• Falco
  • † Falco sparverius
• Ficus

• 

  Fossilized flower of the Eocene-Oligocene mallow relative Florissantia

  † Florissantia – type locality for genus
  • † Florissantoraphidia funerata – type locality for species
• Formica
• † Fornax
• † Fraxinus
• † Fulgora
• † Fulica
  • † Fulica americana
• † Gaurotes
• † Geocoris
• Geomys
  • † Geomys bursarius
• † Geron – tentative report
• Gerris
• † Gigantocamelus
• † Glossina – type locality for genus
• Glyptostrobus
• Gnophomyia
• † Gomphocerus

• 

  Mounted fossilized skeleton of the Miocene-Pleistocene elephant relative Gomphotherium

  † Gomphotherium
• † Gorytes
• † Grammoptera
• † Gyaclavator – type locality for genus
  • † Gyaclavator kohlsi – type locality for species
• † Gymnopternus
• † Gymnorhinus
• † Hadrianus
• Halesia
• † Hapalodectes
• † Haplolambda
• Harpalus
• † Helaletes
• † Helichus
• † Hellwigia
• Helophorus
• † Hemiauchenia
  • † Hemiauchenia macrocephala

• 

  Life restoration of the Eocene tapir relative Heptodon

  † Heptodon
• † Heriades
• † Herpetotherium
  • † Herpetotherium fugax
  • † Herpetotherium knighti
• Hersiliola
• † Hesperocyon
• Heterodon
  • † Heterodon nasicus
• † Hexerites – type locality for genus
  • † Hexerites primalis – type locality for species
• † Heyderia
• Holbrookia
  • † Holbrookia maculata
• † Holcorpa – type locality for genus
  • † Holcorpa maculosa – type locality for species
• † Homogalax
• † Hoplia
• † Hoplocampa
• † Hoplochelys
• † Humulus

• 

  Life restoration of the Eocene-Miocene creodont mammal Hyaenodon

  † Hyaenodon
  • † Hyaenodon crucians
  • † Hyaenodon horridus
  • † Hyaenodon mustelinus
• † Hydnobius
• Hydrangea
• Hydriomena
• † Hydriomena? protrita – tentative report
• Hydrobius
  • † Hydrobius fuscipes
• † Hydromystria
• Hydrophilus
• Hydroporus
• Hydropsyche
• † Hydroptila

• 

  A living Hygrotus predaceous diving beetle

  Hygrotus
• † Hylobius
• † Hymenophyllum
• † Hyopsodus
• † Hypertragulus
• † Hypisodus
• † Hypohippus
• † Hypolagus
• † Hyporhina
  • † Hyporhina galbreathi – type locality for species
• † Hyrachyus

• 

  Life restoration of the Eocene-Oligocene odd-toed ungulate Hyracodon . Charles R. Knight (1896).

  † Hyracodon
• † Hyracotherium
  • † Hyracotherium vasacciense
• † Ichneumon
• Ilex
• † Indusia
• † Iridomyrmex
  • † Iridomyrmex florissantius – type locality for species
  • † Iridomyrmex obscurans – type locality for species
• † Ischyromys
• † Isomira
• † Isothea – type locality for genus
• † Isotrilophus
• † Iulus
• † Jadera
• † Janus
• Jassus – tentative report. Lapsus calami of Iassus .
• † Judolia
  • † Judolia antecurrens – type locality for species

• 

  A living Juglans , or walnut tree

  Juglans
• Junco
  • † Junco hyemalis
• † Juncus
• † Kalmia
• † Kimbetohia
• Koelreuteria
• † Lacon
• † Lagopus
  • † Lagopus leucurus
• † Lambdotherium
• † Lapton

• 

  A living Larus gull

  Larus
• Lasiopodomys
• Lasius
• Lathrobium
• Laurus
• † Lebia
• † Leia
• † Lema
• Lemmiscus
  • † Lemmiscus curtatus
• Lepisosteus
• † Leptauchenia
• †Leptis
• † Leptocyon

• 

  Life restoration of the Eocene-Oligocene even-toed ungulate Leptomeryx

  † Leptomeryx
• † Leptomorphus
• Leptophloeus
• † Leptostylus
• † Leptura
• Lepus
  • † Lepus townsendii
• † Leucosticte
  • † Leucosticte atrata
  • † Leucosticte tephrocotis
• † Leucozona
• † Ligyrocoris
• † Ligyrus

• 

  A living Limnephilus caddisfly

  † Limnephilus
• † Limnobium
• † Limnophila
• † Limonius
• Lindera
• † Linnaea – type locality for genus
• † Linyphia
• † Liometopum
  • † Liometopum miocenicum – type locality for species
  • † Liometopum scudderi – type locality for species
• † Lithocharis

• 

  Life restoration of the Eocene butterfly Lithodryas

  † Lithodryas – type locality for genus
  • † Lithodryas styx – type locality for species
• † Locusta
• Lomatia
• Longitarsus
• Lontra
  • † Lontra canadensis – or unidentified comparable form
• † Lucanus
• † Lycosa
• † Lygaeus
• Lygodium
• Lynx
  • † Lynx rufus
• Lytta

• 

  Life restoration of the Eocene mammal Macrocranion

  Macrocranion
• † Macrodactylus
• † Macrophya
• † Macrorhoptus
• Magdalis
• Magnolia
• Mahonia
• † Maiorana
• † Malachius
• † Malus
• † 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
• Marmota
  • † Marmota flaviventris
• Martes
• † Megacerops
• Megachile
• † Megacyllene
• † Megahippus
• † Megalictis
• † Megapenthes
• † Megatylopus
• † Melanactes
• † Melanophila
• † Melieria
• † Melittomma
• † Mellinus
• Melospiza
  • † Melospiza lincolnii
• † Meniscotherium

• 

  Life restoration of the Miocene rhinoceros Menoceras

  † Menoceras
• Mephitis
  • † Mephitis mephitis
• † Merychippus
  • † Merychippus sejunctus
• † Merychyus
• † Merycochoerus
• † Merycodus
• † Merycoidodon – type locality for genus
• † Mesatirhinus
• † Mesochorus
• † Mesocyon
• † Mesodma
  • † Mesodma hensleighi
• † Mesohippus
• † Mesoleptus
• † Mesonyx
  • † Mesonyx obtusidens
• † Mesostenus
• Messor

• 

  Life restoration of the Eocene pangolin relative Metacheiromys

  † Metacheiromys
• Metachroma
• † Metarhinus
• Metasequoia
  • † Metasequoia occidentalis
• † Miacis
• Miagrammopes
• † Michenia
• † Microplitis
• † Microsyops
• † Microtomarctus
• Microtus

  • 

    A living Microtus californicus , or California vole

    † Microtus californicus – or unidentified comparable form
  • † Microtus longicaudus
  • † Microtus ochrogaster
• † Mimoperadectes
• † Mindarus – type locality for genus
• † Miniochoerus
• † Miodytiscus – type locality for genus
• † Miohippus
• † Miomyrmex
  • † Miomyrmex impactus – type locality for species
  • † Miomyrmex striatus – type locality for species

• 

  Restoration of the Pliocene-Pleistocene Miracinonyx , or American cheetah

  † Miracinonyx
  • † Miracinonyx inexpectatus – or unidentified comparable form
  • † Miracinonyx studeri
• † Monosaulax
• Mordella
  • † Mordella atrata – or unidentified comparable form
  • † Mordella lapidicola – type locality for species
  • † Mordella priscula – type locality for species
  • † Mordella stygia – type locality for species
• Mordellistena
  • † Mordellistena florissantensis – type locality for species
  • † Mordellistena nearctica – type locality for species
  • † Mordellistena scudderiana – type locality for species
  • † Mordellistena smithiana – type locality for species
• † Moropus
• Morus
• Musca
• Mustela
  • † Mustela richardsonii
  • † Mustela nigripes
• † Myas
• † Mycetophagus
• Mycetoporus
• Myrica
• Myrmica
• Nebria
• † Nemognatha
• † Neoliotomus
  • † Neoliotomus conventus
  • † Neoliotomus ultimus
• Neogale
  • Neogale frenata
  • Neogale vison
• Neotoma
  • † Neotoma cinerea
• † Nepa
• † Nephila
• † Netelia
• † Nicocles

• 

  Mounted fossilized skeleton of the Eocene primate Notharctus

  † Notharctus
  • † Notharctus robustior
• Notonecta
• Numenius
  • † Numenius madagascariensis
• † Numitor – type locality for genus
• † Nyctea
  • † Nyctea scandiaca
• Nymphaea
• Nysius
• † Nyssa
• Ochotona
  • † Ochotona princeps
• † Odaxosaurus – or unidentified comparable form
  • † Odaxosaurus piger
• Odocoileus

  • 

    Living male (right) and female (left) Odocoileus hemionus , or mule deer.

    † Odocoileus hemionus
• † Odynerus
• † Oedipoda
• † Ogygoptynx – type locality for genus
• † Oligoaeschna – type locality for genus
• † Oligomerus
• † Oligotricha
• Omalium
• Omus
• Ondatra
• † Oodectes
• Ophisaurus
• Ophryastes
• † Ophyra
• † Opisthotriton
• † Orchelimum
• Orchestes
• Oreamnos – or unidentified comparable form

  • 

    A living Oreamnos harringtoni , or Harrington's mountain goat

    † Oreamnos harringtoni
• † Oreopanax
• † Orohippus
• † Orontium
• † Orphilus
• † Orthocentrus
• † Osmanthus
• † Osmunda
  • † Osmunda greenlandica
• † Otiorhynchus
• Ovis
  • † Ovis canadensis
• † Oxyacodon

• 

  Restoration of the Paleocene-Eocene creodont mammal Oxyaena

  † Oxyaena
• † Oxycera
• † Oxyomus
• † Pachyaena
• † Paederus
• † Palaeogale
• † Palaeolagus
• † Palaeonictis
• † Palaeosinopa
  • † Palaeospiza bella

• 

  Restorative model and fossilized skull of the Eocene brontothere mammal Palaeosyops

  † Palaeosyops – type locality for genus
• † Palaeovespa – type locality for genus
  • † Palaeovespa florissantia – type locality for species
  • † Palaeovespa gillettei – type locality for species
  • † Palaeovespa relecta – type locality for species
  • † Palaeovespa scudderi – type locality for species
  • † Palaeovespa wilsoni – type locality for species
• † Palatobaena
• † Panax
• † Panorpa
• † Paracynarctus
• † Parahippus
  • † Parahippus leonensis – or unidentified comparable form

• 

  Fossilized skeleton of the Pliocene-Pleistocene ground sloth Paramylodon

  † Paramylodon
  • † Paramylodon harlani
• † Paramys
• † Parandra
• † Paratylopus
• † Parectypodus
  • † Parectypodus lunatus
• † Parictis
• † Parthenocissus
• † Passaloecus
• † Patriofelis
• Pediacus
• Pekania
• † Pellea

• 

  Fossilized skull of the Eocene-Oligocene lizard Peltosaurus

  † Peltosaurus
  • † Peltosaurus granulosus – type locality for species
• † Pelycodus
  • † Pelycodus danielsae
  • † Pelycodus jarrovii
• Penthetria – type locality for genus
• † Pepsis
• † Peraceras
• † Peratherium
• Peromyscus
  • † Peromyscus maniculatus
• Persea

• 

  Fossil of the Oligocene ant Petraeomyrmex

  † Petraeomyrmex – type locality for genus
  • † Petraeomyrmex minimus – type locality for species
• † Phaca
• Phalacrocorax
• Phalaropus
  • † Phalaropus lobatus
• † Phasmagyps – type locality for genus
• Pheidole
• † Phenacodus
• Phenacomys
  • † Phenacomys intermedius
• Philadelphus
• † Philanthus

• 

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

  † Phlaocyon
• Phloeosinus
• † Phora
• Phryganea
• Phrynosoma
  • † Phrynosoma douglassi
• † Phylledestes – type locality for genus
  • † Phylledestes vorax – type locality for species
• † Phyllobaenus
• Phyllobius
• † Phyllophaga
• † Phymatodes
• Pica
  • † Pica hudsonia
• Picea
• Picoides
  • † Picoides villosus
• † Pidonia
• † Pimpla
• Pinus
• † Pipiza
• † Pison
• Pituophis
  • † Pituophis melanoleucus
• Platanus
• Plateumaris
• † Platycheirus
• Platydema

• 

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

  † Platygonus
• Platynus
• Platystethus
• Plecia
• † Plesiadapis
• † Plesiobaena
• † Pliohippus
• † Plochionus
• † Poabromylus
• Podabrus
• Podiceps
• Podilymbus
  • † Podilymbus podiceps

• 

  Life restoration of the Eocene-Oligocene camel Poebrotherium

  † Poebrotherium
• † Poecilocapsus
• † Poecilognathus – type locality for genus
• † Pogonomyrmex
  • † Pogonomyrmex fossilis – type locality for species
• † Polysphincta
• Populus
• Porzana
  • † Porzana carolina
• † Potamogeton
• † Praepapilio – type locality for genus
  • † Praepapilio colorado – type locality for species
  • † Praepapilio gracilis – type locality for species
• † Priabona
• † Pristichampsus
• † Probathyopsis
• † Procas

• 

  Illustration of a fossil of the Eocene butterfly Prodryas

  † Prodryas – type locality for genus
  • † Prodryas persephone – type locality for species
• † Proiridomyrmex – type locality for genus
  • † Proiridomyrmex vetulus – type locality for species
• † Prolimnocyon
• † Proscalops
• Prosopis
• † Protazteca – type locality for genus
  • † Protazteca capitata – type locality for species
  • † Protazteca elongata – type locality for species
  • † Protazteca hendersoni – type locality for species
  • † Protazteca quadrata – type locality for species
• † Protohippus
• † Protolabis
• † Protomarctus

• 

  Protorohippus

  † Protorohippus
• † Protostephanus – type locality for genus
  • † Protostephanus ashmeadi – type locality for species
• † Protungulatum
  • † Protungulatum donnae
• Prunus
  • † Prunus gracilis
• † Psephenus
• Pseudacris
  • † Pseudacris triseriata

• 

  Restoration of the Miocene cat Pseudaelurus

  † Pseudaelurus
• † Pseudhipparion
• Pseudomyrmex
• † Pseudoprotoceras
• † Psittacotherium
• Ptelea
• Pterocarya
• † Pteromalus
• Pterostichus
• † Ptilodus
  • † Ptilodus kummae
• † Ptosima
• Quedius
• Quercus
• Rallus
  • † Rallus limicola
• † Ramoceros
• † Rallus
  • † Rallus limicola

• 

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

  † Ramoceros
• † Rana
  • † Rana catesbeiana
• † Raphidia
• Reithrodontomys
• Reticulitermes
• Rhabdomastix
• † Rhagio
• Rhagonycha
• † Rhamnus
• † Rhamphomyia

• 

  A living Rhineura floridana , or North American worm lizard

  Rhineura
• † Rhingia
• Rhizophagus
• Rhus
• † Rhyssa
• † Ribes
• † Robinia
• † Rogas
• Rosa
• † Rothschildia
• Rubus
• Sabal
• † Saccoloma
• Salix
• † Sambucus

• 

  Fossilized skeleton of the Eocene monitor lizard Saniwa

  † Saniwa
• † Saperda
  • † Saperda florissantensis – type locality for species
• † Sapindus
• † Sapromyza
• Sassafras
  • † Sassafras hesperia
• Scaphinotus
• Sceloporus
  • † Sceloporus undulatus
• Sciara
• † Sciophila
• Sciurus
• Scolytus
• † Segestria
• † Selaginella
• † Semanotus
• Sequoia

  • 

    Fossilized branch fragment from a Sequoia affinis

    † Sequoia affinis
• Serica
• † Sespia
• † Sialia
• † Sibinia
• † Sifrhippus
• Sigmodon
• † Silpha
• † Silvius
• † Sinonyx – or unidentified comparable form
• Sitona
• † Sitones
• Sitta
  • † Sitta carolinensis
• † Smilax

• 

  Mounted fossilized skeleton of the Eocene primate Smilodectes

  † Smilodectes
  • † Smilodectes gracilis
  • † Smilodectes mcgrewi
• Sonoma
• Sorex
  • † Sorex arcticus
  • † Sorex hoyi
• † Sparganium
• Spea
  • † Spea bombifrons
• † Spermophagus
• Spermophilus
  • † Spermophilus elegans – or unidentified comparable form
  • † Spermophilus lateralis
  • † Spermophilus richardsonii
  • † Spermophilus tridecemlineatus
• † Sphegina

• 

  Life restoration of the Eocene brontothere mammal Sphenocoelus

  † Sphenocoelus
• Spilogale
  • † Spilogale putorius
• Spizella
  • † Spizella breweri
• † Staphylea
• Staphylinus
• † Stenolophus
• † Stenosphenus
• Stenus
• Sterculia
• Stilbus
• † Stipa
• † Strategus
• † Stylinodon

• 

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

  † Subhyracodon
• Sylvilagus
  • † Sylvilagus audubonii
• † Symphoromyia
• Syrphus
• † Systena
• † Tabanus
• Tachycineta
  • † Tachycineta bicolor
• Tachyporus
• † Tachys
• Tamiasciurus
  • † Tamiasciurus hudsonicus
  • † Tanysphyrus lemnae
• Tapirus
• Taxidea
  • † Taxidea taxus
• † Teilhardina

• 

  Restoration of the Miocene-Pliocene rhinoceros Teleoceras

  † Teleoceras
• † Tenor – type locality for genus
• † Tenthredo
• † Tetragnatha
• † Tetraonyx
• † Tetraopes
  • † Tetraopes submersus – type locality for species
• † Tetrapus
• Thamnophis

  • 

    A living Thamnophis elegans , or western terrestrial garter snake

    † Thamnophis elegans
  • † Thamnophis sirtalis
• † Thanasimus
• † Themira
• † Thomisus
• Thomomys
  • † Thomomys talpoides
• † Thouinia
• † Thuja
• † Ticholeptus
• Tilia
• † Tingis
• Tipula – type locality for genus
• † Titanoeca

• 

  Life restoration of the Paleocene pantodont mammal Titanoides

  † Titanoides
  • † Titanoides looki
  • † Titanoides primaevus
• † Tomarctus
  • † Tomarctus brevirostris – type locality for species
• † Tomoxia
  • † Tomoxia inundata – type locality for species
• † Torreya
• † Tortricites
• † Tortrix
  • † Tortrix florissantana – type locality for species
• † Torymus
• Trechus
• † Trichilia
• † Triga
• † Trigonias
• † Trigonoscuta
• † Triplax
• † Tritemnodon
• † Triumfetta
• † Trixoscelis
• † Trogosus
• Trogoxylon
• † Trogus
• † Tropisternus
• Trox
• † Trypherus
• † Tryphon
• † Tychius
• Typha
• † Uintacyon
• † Uintascorpio – type locality for genus
• Ulmus
• †Ulus
• Urocyon

  • 

    A living Urocyon cinereoargenteus , or gray fox

    † Urocyon cinereoargenteus
• † Ursavus
• Ursus
  • † Ursus americanus
• † Ustatochoerus
• † Vanessa
• † Vauquelinia
• † Viburnum
• † Vicia
• † Villa – type locality for genus
• Vitis
• † Viverravus
• † Vrilletta

• 

  Mounted fossilized skeleton of the Eocene mammal Vulpavus

  † Vulpavus
• Vulpes
  • † Vulpes velox
  • † Vulpes vulpes
• † Weinmannia
• † Woodwardia
• † Xantholinus
• † Xestobium
• † Xylocopa
• † Xylomya
• † Xyronomys
• † Yumaceras
• † Zamia
• Zelkova
• Zizyphus
• Zonotrichia
  • † Zonotrichia leucophrys
• † Zootermopsis

• 

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

  † Zygolophodon

References

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database" . Retrieved 17 December 2021.