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This list of the Cenozoic life of Utah contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Utah and are between 66 million and 10,000 years of age.
- Abies
- †Achaenodon
- †Achaenodon uintensis – type locality for species
- †Acmeodon
- †Acrocera
- †Acrocera hirsuta – type locality for species
- †Aenocyon
- †Aenocyon dirus – or unidentified comparable form
- †Aepinacodon
- †Aethomylos
- †Aethomylos simplicidens
- †Ageina – or unidentified comparable form
Life restoration of the Eocene-Oligocene even-toed ungulate Agriochoerus - †Agriochoerus maximus
- Alligator
- †Allognathosuchus – or unidentified comparable form
- †Allophaiomys
- †Allophaiomys pliocaenicus
- Amia
- †Amia uintensis
- Amyda
- †Amyda crassa – type locality for species
- †Amyda gregaria
- †Amynodon
- †Amynodon advenus
- †Amynodon reedi
- †Anaptomorphus
- †Anaptomorphus aemulus
- †Anemorhysis
- †Anisonchus
- †Anisonchus athelas
- †Anisonchus oligistus
- †Anisonchus onostus
- †Anisonchus sectorius
Fossilized shell of the Eocene-Oligocene turtle Anosteira - †Anosteira ornata
- Anthonomus
- †Anthonomus soporus
- †Antiacodon
- †Antiacodon pygmaeus
- Antilocapra
- †Antilocapra americana – or unidentified comparable form
- Apalone
- †Apataelurus
- †Apataelurus kayi – type locality for species
- †Apatemys
- †Apatemys bellulus – or unidentified comparable form
- †Apatemys bellus – or unidentified comparable form
- †Apatemys rodens – or unidentified comparable form
- †Apatemys uintensis – type locality for species
- †Aphronorus
- †Aphronorus simpsoni
Restoration of an Arctodus, or short-faced bear, with a human to scale - †Armintodelphys
- †Armintodelphys dawsoni
- †Artemisia
- †Asilopsis – type locality for genus
- †Asilopsis fusculus – type locality for species
- †Asilus
- †Asilus palaeolestes – type locality for species
- †Aulobaris
- †Aulobaris circumscripta
- †Aulobaris comminuta – type locality for species
- †Auxontodon
- †Auxontodon pattersoni
- †Baena
- †Baena arenosa – type locality for species
- †Baena emiliae
- †Baptemys
- †Basirepomys
- †Basirepomys robertsi – type locality for species
- †Bembidium
- †Bembidium exoletum – type locality for species
- Bison
- †Bison latifrons – tentative report
- †Bittacus
- †Bittacus egestionis – type locality for species
- †Blickomylus
- †Blickomylus moroni – type locality for species
- †Bootherium
Fossilized skeleton of the Eocene crocodilian Boverisuchus - †Boverisuchus vorax – type locality for species
- †Brachyhyops
- †Brachyhyops wyomingensis
- Brachylagus
- †Brachylagus idahoensis – or unidentified comparable form
- †Bridgeremys
- †Bridgeremys pusilla – tentative report
- †Bunomeryx
- †Bunomeryx montanus – type locality for species
Life restoration of the Pliocene-Holocene camel Camelops - †Camelops hesternus – or unidentified comparable form
- Camponotus
- †Camponotus vetus – type locality for species
- Canis
- †Canis latrans – tentative report
- †Canis lupus
- †Capricamelus
- †Carabites
- †Carabites eocenicus – type locality for species
- †Carabites exanimus – type locality for species
- †Catopsalis
- †Cedrelospermum
- †Cedrelospermum nervosum
- †Centetodon
- †Centetodon bembicophagus
- †Centetodon pulcher
Life restoration of the Late Cretaceous-Eocene choristoderan reptile Champsosaurus - Chara
- Cheilosia
- †Cheilosia scudderi
- †Chipetaia
- †Chipetaia lamporea – type locality for species
- †Chisternon
- †Chisternon undatum – type locality for species
- †Chriacus
- †Chriacus baldwini
- †Cicindelopsis – type locality for genus
- †Cicindelopsis eophilus – type locality for species
- †Colodon
- †Compsemys
- †Conacodon
- †Conacodon kohlbergeri
- †Coniatus
- †Coniatus refractus
- †Conoryctella – type locality for genus
- †Conoryctella dragonensis – type locality for species
- †Conoryctella pattersoni
- †Copemys
- †Copemys mariae – or unidentified related form
- †Coryphodon
- †Coryphodon lobatus
- †Cristadjidaumo – type locality for genus
- †Cristadjidaumo mckennai – type locality for species
- Crocodylus
Fossilized skull of the Eocene crocodilian Crocodylus acer - †Crocodylus affinis
- †Crypholestes
- Culex
- †Culex proavitus – type locality for species
- †Cupidinimus
- †Cuterebra
- †Cuterebra ascarides
- †Cyttaromyia – type locality for genus
- †Cyttaromyia fenestrata – type locality for species
- †Desmatoclaenus
- †Desmatoclaenus hermaeus
- Dicranomyia
- †Dicranomyia primitiva – type locality for species
- †Dicranomyia rostrata – type locality for species
- †Dicranomyia stigmosa – type locality for species
Mounted fossilized skeleton of the Miocene-Pliocene horse Dinohippus - †Diplacodon
- †Diplacodon elatus
- †Diplacodon emarginatus – type locality for species
- †Diplobunops
- †Diplobunops crassus
- †Diplobunops matthewi
- †Diprionomys
- †Diprionomys minimus – or unidentified comparable form
- †Dipsalidictis
- †Dipsalidictis transiens
- †Draconodus
- †Draconodus apertus
- †Dracontolestes
- †Dracontolestes aphantus – type locality for species
- †Duchesnehippus
- †Duchesnehippus intermedius
- †Duchesneodus
- †Duchesneodus uintensis
Fossilized shell of the Eocene turtle Echmatemys - †Echmatemys depressa – type locality for species
- †Echmatemys douglassi – type locality for species
- †Echmatemys septaria – type locality for species
- †Echmatemys uintensis
- †Ectoconus
- †Ectoconus ditrigonus
- †Ectoconus symbolus
- †Ellipsodon
- †Ellipsodon grangeri
- †Ellipsodon lemuroides
- †Ellipsodon sternbergi – type locality for species
- †Elliptio
Life restoration of a pair of the Eocene uintathere mammal Eobasileus. Charles R. Knight (1890s). - †Eobracon – type locality for genus
- †Eobracon cladurus – type locality for species
- †Eocaenonemonyx
- †Eocaenonemonyx kuscheli – type locality for species
- †Eoconodon
- †Eodiploglossus
- †Eodiploglossus borealis
- †Eoformica
- †Eoformica pinguis – type locality for species
- †Eomoropus
- †Eomoropus amarorum – type locality for species
- †Eomoropus anarsius
- †Eonessa – type locality for genus
- †Eonessa anaticula – type locality for species
- †Epicaerus
- †Epicaerus effossus
- †Epicaerus eradicatus
- †Epicaerus evigoratus
- †Epicaerus exanimis
- †Epicaerus subterraneus
- †Epicaerus terrosus
- †Epihippus
- †Epihippus gracilis
- †Epiphanis
- †Epiphanis deletus – type locality for species
- †Epitriplopus
- †Epitriplopus uintensis
- Equus
- †Equus conversidens – tentative report
- Erethizon
- †Erethizon dorsatum – tentative report
- †Eucastor
- †Eucastor tortus – or unidentified comparable form
Fossil of the Eocene bee Euglossopteryx - †Euglossopteryx biesmeijeri – type locality for species
- Eutamias
- †Glyptosaurus
- †Glyptosaurus sylvestris
- †Gnoriste
- †Gnoriste dentoni – type locality for species
- †Goniacodon
- †Goniacodon hiawathae
- †Griphomys
- †Hadrianus
- †Hadrianus corsoni
- †Hadrianus utahensis – type locality for species
- †Haplaletes
- †Haplaletes andakupensis
- †Haploconus
- †Haploconus angustus
- †Haploconus elachistus
- †Haplolambda – or unidentified comparable form
- †Haplolambda simpsoni – type locality for species
Fossilized skull of the mesonychian mammal Harpagolestes - †Harpagolestes brevipes – type locality for species
- †Harpagolestes leotensis – type locality for species
- †Harpagolestes uintensis
- †Helaletes
- †Helaletes nanus
- †Helodermoides – tentative report
- †Heptacodon
- †Herpetotherium
- †Herpetotherium innominatum
- †Hesperolagomys
- †Hesperolagomys galbreathi
- †Hessolestes
- †Hessolestes ultimus – type locality for species
- †Heteraletes
- †Heteraletes leotanus
- †Hoplochelys
Life restoration of the Eocene-Miocene creodont mammal Hyaenodon - †Hyaenodon vetus – or unidentified comparable form
- Hydrobia – or unidentified comparable form
- †Hylobius
- †Hylobius deleticius – type locality for species
- †Hylomeryx
- †Hylomeryx annectens
- †Hylomeryx quadricuspis – type locality for species
- †Hyopsodus
- †Hyopsodus minusculus
- †Hyopsodus paulus
- †Hyopsodus uintensis – type locality for species
- †Hypohippus
- †Hypolagus
- †Hypolagus vetus
- †Hyrachyus
- †Hyrachyus eximius
- †Hyrachyus modestus
- †Hyracodon
- †Hyracodon medius
- †Hyracotherium
- †Isectolophus – type locality for genus
- †Isectolophus annectens – type locality for species
- †Janimus
- †Janimus rhinophilus – type locality for species
- †Kimbetohia
- †Kimbetohia campi
- Laccophilus
- †Lambdotherium
- †Lasioptera
- †Lasioptera recessa – type locality for species
- †Leistotrophus
- †Leistotrophus patriarchicus – type locality for species
- Lemmiscus
- Lepisosteus
- †Lepisosteus simplex
Life restoration of the Eocene-Oligocene even-toed ungulate Leptomeryx - †Leptoreodon
- †Leptoreodon marshi
- †Leptotragulus
- †Leptotragulus clarki
- †Leptotragulus medius – type locality for species
- †Leptotragulus proavus
- Lepus
- †Lepus townsendii – or unidentified comparable form
- †Limalophus
- †Limalophus compositus
- †Limalophus receptus – type locality for species
Top view of a fossilized skull of the Eocene creodont mammal Limnocyon - †Limnocyon potens
- †Limnocyon verus – or unidentified comparable form
- †Liodontia
- †Lioplacoides – or unidentified comparable form
- †Litaletes
- †Litaletes gazini
- †Lithadothrips – type locality for genus
- †Lithadothrips vetusta – type locality for species
- †Loxolophus
- †Loxolophus pentacus
- †Loxolophus spiekeri
A living Lynx - †Lynx canadensis – or unidentified comparable form
- †Macrotarsius
- †Macrotarsius jepseni – type locality for species
- †Mammut
- †Mammuthus
- †Mammuthus columbi
Life restorations of a Mammut americanum, or American mastodon (right), and a Mammuthus primigenius, or wooly mammoth (left)
- Marsilea[1]
- †Marsilea sprungerorum[1]
- †Megalamynodon
- †Megalamynodon regalis – type locality for species
- †Megalonyx
- †Menops
- †Menops marshi
- †Merriamoceros
- †Mesomeryx – type locality for genus
- †Mesomeryx grangeri – type locality for species
Life restoration of the Eocene mammal Mesonyx - †Metaliomys – type locality for genus
- †Metaliomys sevierensis – type locality for species
- †Metanoiamys
- †Metanoiamys lacus
- †Metarhinus
- †Metarhinus diploconus
- †Metarhinus fluviatilis – type locality for species
- †Metarhinus parvus
- †Metatelmatherium
- †Metatelmatherium ultimum – type locality for species
Life restoration of the Paleocene-Eocene mammal Miacis - †Miacis parvivorus – or unidentified comparable form
- †Microparamys
- †Microparamys dubius
- †Microparamys minutus
- †Micropternodus
- †Microsyops
- Microtus
- †Microtus montanus
- †Microtus paroperarius
- Mictomys
- †Mimomys
- †Mimomys dakotaensis – or unidentified comparable form
- †Mimotricentes
- †Miocyon
- †Miocyon major – or unidentified comparable form
- †Miocyon scotti – type locality for species
- †Miocyon vallisrubrae – type locality for species
- Mustela
- †Mustela richardsonii – tentative report
- †Myrmecoboides
- †Mytonolagus
- †Mytonolagus petersoni – type locality for species
- †Mytonomeryx
- †Mytonomeryx scotti – type locality for species
- †Mytonomys
- †Mytonomys mytonensis
- †Mytonomys robustus – type locality for species
- †Nemotelus
- †Nemotelus eocenicus – type locality for species
- Neogale
- †Neoplagiaulax
- Neoptochus – tentative report
- Neotamias
- Neotoma
- †Notharctus
Mounted fossilized skeleton of the Eocene primate Notharctus tenebrosus
- †Nyctitherium
- †Nyctitherium serotinum
A living Odocoileus deer - †Oliveremys
- †Oliveremys uintaensis
- †Omomys
- †Omomys carteri
- †Omomys lloydi – type locality for species
- Ondatra
- †Onychodectes
- †Onychodectes tisonensis – or unidentified comparable form
- †Oodectes – tentative report
- Ophryastes
- †Ophryastes petrarum
- †Ophryastites
- †Ophryastites digressus – type locality for species
- †Orelladjidaumo – or unidentified comparable form
- †Oromeryx
- †Oromeryx plicatus – type locality for species
- †Ourayia
- †Ourayia hopsoni
- †Ourayia uintensis – type locality for species
- †Oxyacodon
- †Oxyacodon apiculatus
- †Oxyacodon ferronensis – type locality for species
- †Oxyacodon marshater – type locality for species
- †Oxyaenodon
- †Oxyaenodon dysodus
- †Oxyclaenus
- †Oxyclaenus pugnax
- †Oxygonus
- †Oxygonus mortuus – type locality for species
- †Oxytomodon
- †Oxytomodon perissum
- †Pachymerus
- †Pachymerus petrensis – type locality for species
- †Paenemarmota
- †Paenemarmota sawrockensis
- †Palaeictops
- †Palaeictops bridgeri
- †Palaeoeristalis – type locality for genus
- †Palaeoeristalis tesselatus – type locality for species
- †Palaeothrips – type locality for genus
- †Palaeothrips fossilis – type locality for species
- †Palaeoxantusia
- †Pantolestes
- †Pantolestes longieundus – or unidentified comparable form
- †Paradjidaumo
- †Paradjidaumo alberti – or unidentified comparable form
- †Paradjidaumo trilophus
Fossilized skeleton of the Pliocene-Pleistocene ground sloth Paramylodon - †Paramylodon harlani – or unidentified comparable form
- †Paramys
- †Paramys compressidens – type locality for species
- †Paramys delicatus
- †Paramys leptodus
- †Parasauromalus
- †Parasauromalus olseni
- †Parectypodus
- †Pareumys
- †Pareumys grangeri
- †Pareumys guensburgi – type locality for species
- †Pareumys milleri – type locality for species
- †Pareumys troxelli
- †Paromomys
- †Paromomys depressidens
- †Paronychomys
- †Paronychomys lemredfieldi
- †Paropsocus – type locality for genus
- †Paropsocus disjunctus – type locality for species
- †Passaliscomys – type locality for genus
- †Passaliscomys priscus – type locality for species
- †Pauromys
- †Penetrigonias
- †Penetrigonias dakotensis
- †Pentacemylus
- †Pentacemylus leotensis
- †Pentacemylus progressus – type locality for species
- †Peradectes
- †Peradectes chesteri
Fossilized mandible of the Eocene-Miocene mammal Peratherium - †Peratherium marsupium
- †Periptychus
- †Periptychus carinidens
- †Periptychus coarctatus
- Peromyscus
- Phenacomys
- †Phenacomys gryci – or unidentified comparable form
- †Phenacomys intermedius
- †Phygadeuon
- †Phygadeuon petrifactellus – type locality for species
- Phyllobius
- †Phyllobius avus
- †Phyllobius carcerarius
- †Phyllophaga
- †Phyllophaga avus – type locality for species
- Physa
- Picea
A living Pinus, or pine tree - †Plastomenoides
- †Plastomenoides lamberti
- †Plastomenus
- Plecia
- †Plecia woodruffi – type locality for species
- †Plesiolestes
- †Plesiolestes nacimienti
- †Poabromylus
- †Poabromylus kayi – type locality for species
- †Poebrodon
- †Poebrodon kayi – type locality for species
- †Polemonium – or unidentified comparable form
- †Presbyorniformipes
- †Presbyorniformipes feduccii – type locality for species
Life restoration of the Paleocene-Eocene waterfowl Presbyornis - †Presbyornis pervetus – type locality for species
- †Presbyornis recurvirostrus – type locality for species
- †Procaimanoidea – type locality for genus
- †Procaimanoidea kayi
- †Procaimanoidea utahensis – type locality for species
- †Procas
- †Procas vinculatus
- †Procynodictis
- †Procynodictis vulpiceps
- †Prodaphaenus
- †Prodaphaenus uintensis – type locality for species
- †Promioclaenus
- †Pronophlebia – type locality for genus
- †Pronophlebia rediviva – type locality for species
- †Propalaeosinopa – tentative report
- †Protadjidaumo
- †Protadjidaumo typus – type locality for species
- †Protictis
- †Protictis haydenianus
Restorative models in multiple views of the Eocene brontothere Protitanotherium (figure 3) - †Protochriacus
- †Protochriacus simplex
- †Protoptychus
- †Protoptychus hatcheri
- †Protoreodon
- †Protoreodon minor – type locality for species
- †Protoreodon parvus
- †Protoreodon petersoni – type locality for species
- †Protoreodon pumilus – type locality for species
- †Protoselene
- †Protoselene griphus
Illustration of a fossilized skull of the Eocene camel Protylopus - †Protylopus annectens – type locality for species
- †Protylopus petersoni
Fossilized skeleton of the Eocene creodont mammal Proviverra - †Proviverra longipes
- †Proviverroides
- †Proviverroides piercei – or unidentified comparable form
- †Proxestops – or unidentified comparable form
- †Proxestops silberlingii
- †Pseudodiplacodon
- †Pseudosalix – type locality for genus
- †Pseudosalix handleyi – type locality for species
- †Pseudotomus
- †Pseudotomus eugenei – type locality for species
- †Pseudotomus petersoni – type locality for species
Illustration of a fossilized skull of the Paleocene multituberculate mammal Ptilodus - †Ptilodus mediaevus
- †Ptilodus tsosiensis – or unidentified comparable form
- †Reithroparamys
- †Reithroparamys sciuroides – type locality for species
A living Rhinoclemmys, or Neotropical wood turtle
Fossilized skeleton of the Eocene monitor lizard Saniwa - †Sargus
- †Sargus vetus – type locality for species
- †Scenopagus
- †Scenopagus edenensis
- †Scenopagus priscus
- †Sciuravus
- †Sciuravus altidens – type locality for species
- †Sciuravus eucristadens
- †Sciuravus popi – type locality for species
- †Simidectes – type locality for genus
- †Simidectes magnus – type locality for species
- †Simidectes medius – type locality for species
- †Simimeryx
- †Simimeryx minutus
- †Simimys – or unidentified comparable form
- †Sinopa
- †Sinopa agilis
- †Sinopa major
- †Sinopa rapax
- †Smilodectes
Life restoration of the Pleistocene-Holocene saber-tooth cat Smilodon - †Smilodon fatalis – or unidentified comparable form
- Sorex
- Spermophilus
- †Spermophilus armatus – or unidentified comparable form
- †Sphenocoelus
- †Sphenocoelus hyognathus
- †Sthenodectes
- †Sthenodectes incisivum – type locality for species
- †Stygimys
- †Stylemys
- †Stylemys uintensis – type locality for species
Life restoration of the Eocene taeniodont mammal Stylinodon mirus - †Stylinodon mirus
- †Syntomostylus
- †Syntomostylus rudis
Restoration of the Paleocene multituberculate mammal Taeniolabis - †Talpavus
- †Talpavus duplus – type locality for species
- †Talpavus nitidus
- †Tapocyon
- †Tapocyon robustus
- Taxidea
- †Thisbemys
- †Thisbemys medius
- †Thisbemys uintensis – type locality for species
- Thomomys
- †Tilgidopsis – type locality for genus
- †Tilgidopsis haesitans – type locality for species
- Tinosaurus
- †Tinosaurus stenodon
- †Tricentes
- †Tricentes subtrigonus – type locality for species
- †Triplopus
- †Triplopus implicatus
- †Triplopus obliquidens
- †Triplopus rhinocerinus – type locality for species
- †Trogosus
- †Tylocephalonyx
- †Uintaceras
- †Uintaceras radinskyi – type locality for species
- †Uintacyon
- †Uintacyon acutus – type locality for species
- †Uintanius
- †Uintanius ameghini
- †Uintasorex
- †Uintasorex parvulus – or unidentified comparable form
Life restoration of the Eocene mammal Uintatherium - †Utahia
- †Utahia kayi – type locality for species
- †Valenia
- †Valenia wilsoni
- †Viverravus
- †Viverravus gracilis
- †Viverravus minutus
- †Viverravus sicarius
- Viviparus
- Vulpes
A living Vulpes vulpes, or red fox
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- †Xestops
- †Xestops vagans
- †Xylotosyrphus – type locality for genus
- †Xylotosyrphus pulchrafenestra – type locality for species
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