List of the prehistoric life of Utah

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

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

Selected Paleozoic taxa of Utah

 * †Acodus
 * †Agnostus
 * †Amphiscapha
 * †Amplexus
 * †Annularia
 * †Annularia stellata
 * †Anomalocaris
 * †Anomphalus
 * †Archimedes
 * †Archimedes macfarlani
 * †Arcuolimbus
 * †Arenicolites
 * †Artisia
 * Asaphiscus wheeleri grey CRF.jpeg †[[Asaphiscus]]
 * †Asaphiscus wheeleri
 * †Athyris
 * †Athyris lamellosa
 * †Atrypa
 * †Atrypa parva – or unidentified comparable form
 * †Atrypid
 * †Aulopora – tentative report
 * †Aviculopecten
 * †Aviculopecten girtyi
 * †Aviculopecten kaibabensis – or unidentified comparable form
 * †Aysheaia
 * †Bathyuriscus
 * †Beckwithia
 * †Benthamaspis
 * †Beyrichoceras
 * †Biscoia
 * †Bolbocephalus
 * †Bonneterrina
 * †Bourbonnella
 * †Bowmania
 * Branchiocaris.jpg †[[Branchiocaris]]
 * †Brassicicephalus
 * †Calamites
 * †Calamites cistii – or unidentified comparable form
 * †Calamites suckowii
 * †Callipteris – tentative report
 * †Callocladia
 * †Camarotoechia
 * †Campbelloceras – tentative report
 * Canadaspis perfecta.JPG †[[Canadaspis]]
 * †Canadaspis perfecta – or unidentified comparable form
 * †Canadia
 * †Caninia
 * †Cardiopteris
 * †Carolinites
 * †Cavusgnathus
 * †Cedaria
 * †Chancelloria
 * †Chancia
 * †Choia
 * †Chondrites
 * †Chonetes
 * †Cladochonus
 * †Cleiothyridina
 * †Clonograptus
 * †Coenites
 * Compositafossil.jpg †[[Composita]]
 * †Composita mira
 * †Composita ovata
 * †Composita parasulcata
 * †Composita plana
 * †Composita subtilita
 * †Composita trinuclea
 * †Coosella
 * †Coosina
 * †Cordaicarpus
 * †Cordaites
 * †Cordaites principalis
 * Crania
 * †Cravenoceras
 * †Crepicephalus
 * †Cruziana
 * †Ctenospondylus
 * †Cybelopsis
 * †Cyclopteris
 * †Cystodictya
 * †Deiracephalus
 * Dentalium
 * †Diadectes
 * †Diagoniella
 * †Dictyonema
 * Didymograptus murchisoni small.jpg †[[Didymograptus]]
 * †Didymograptus nitidus – or unidentified comparable form
 * †Dimeropygiella
 * †Diplorrhina
 * †Donaldina
 * †Dresbachia
 * †Echinaria
 * †Ectosteorhachis – or unidentified related form
 * †Ehmaniella
 * †Eldonia
 * †Eleutherocentrus
 * †Elrathia
 * †Elrathina
 * †Emeraldella
 * †Endoceras
 * Eryops1DB.jpg †[[Eryops]]
 * †Euptychaspis
 * †Fenestella
 * †Forteyops
 * †Genevievella
 * †Girvanella
 * †Gnathodus
 * †Gogia
 * †Goniatites
 * †Gunterichthys – type locality for genus
 * †Hamptonia
 * †Haplophrentis
 * †Hazelia
 * Helicoprion bessonovi cropped.png †[[Helicoprion]]
 * †Hematites
 * †Hemirhodon
 * †Hindia
 * †Hintzeia
 * †Homagnostus
 * †Huronia
 * †Hyolithellus
 * †Hyolithes
 * †Idiognathodus
 * †Illaenus
 * †Irvingella
 * †Jeffersonia
 * †Kanoshia
 * †Kawina
 * †Kingstonia
 * †Kirkella
 * †Komia
 * †Kootenia
 * †Lachnostoma
 * Leanchoilia superlata study cropped.png †[[Leanchoilia]]
 * †Lejopyge
 * †Lepidodendron
 * †Lepidodendron aculeatum
 * †Lepidodendron obovatum
 * †Lepidophyllum
 * †Lepidostrobus
 * †Leptomitus
 * Lima
 * Limatula
 * Lingula
 * †Lingulella
 * †Llanoaspis
 * †Lochriea
 * †Lonchocephalus
 * †Lyracystis
 * †Margaretia
 * †Margaretia dorus
 * †Marpolia
 * †Matthevia
 * Metacoceras discoideum 01.jpg †[[Metacoceras]]
 * †Meteoraspis
 * †Micromitra
 * Modiolus – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Mollisonia
 * †Morania
 * †Naraoia
 * †Naticopsis
 * †Neospirifer
 * †Neospirifer cameratus
 * †Neospirifer kansasensis
 * †Neospirifer triplicatus
 * †Neuropteris
 * †Neuropteris gigantea
 * †Neuropteris heterophylla
 * †Niobe – tentative report
 * †Nisusia
 * †Norwoodia
 * †Obolus
 * †Ogygopsis
 * †Olenellus
 * †Olenoides
 * †Olenoides nevadensis
 * †Olenoides serratus
 * Ophiacodon mirus cropped.png †[[Ophiacodon]]
 * †Ophiacodon navajovicus
 * †Orthis
 * †Oryctocephalus
 * †Ottoia
 * †Ottoia prolifica
 * †Ozarkodina
 * †Pagetia
 * †Paladin
 * Palaeoaplysina
 * †Palaeoscolex
 * †Pelagiella
 * †Pentamerus
 * †Peronopsis
 * †Peronopsis interstricta
 * †Perspicaris
 * †Phillipsia
 * †Phyllograptus
 * Pinna – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Platycrinites
 * Platyhystrix BW.jpg †[[Platyhystrix]] – or unidentified comparable form
 * †Platyhystrix rugosus
 * †Prodentalium
 * †Prohedinia
 * †Protopliomerella
 * †Protospongia
 * †Ptychagnostus
 * †Ptychagnostus atavus
 * †Pugnax
 * †Punka
 * †Quadratia
 * †Rayonnoceras
 * KimmswickOzoraMidOrdReceptaculitid.jpg †[[Receptaculites]]
 * †Ribeiria
 * †Rusophycus
 * †Saukiella
 * †Scenella
 * †Schmalenseeia
 * †Schwagerina
 * †Scolicia
 * †Selkirkia
 * †Selkirkia columbia – or unidentified comparable form
 * †Sidneyia
 * †Sigillaria
 * †Sigillaria brardii
 * Sphenacodon2.jpg [[Sphenacodon]]
 * †Sphenophyllum
 * †Sphenophyllum angustifolium
 * †Sphenophyllum verticillatum
 * †Sphenopteris
 * †Spinofacia – type locality for genus
 * †Spirifer
 * †Spirifer centronatus
 * †Spirifer opimus
 * †Spiriferina
 * Spirorbis
 * †Stenorhachis – tentative report
 * Lycopsid joggins mcr1.JPG †[[Stigmaria]]
 * †Syringopora
 * †Teichichnus – tentative report
 * †Terranovella
 * †Tetragraptus
 * †Thalassinoides – tentative report
 * †Tricrepicephalus
 * †Trigonocercella
 * †Trinodus
 * †Triplagnostus
 * †Trocholites
 * †Tseajaia
 * †Tseajaia campi – type locality for species
 * †Tuzoia
 * Utaherpeton.jpg †[[Utaherpeton]] – type locality for genus
 * †Vauxia
 * †Walcottoceras – tentative report
 * †Waptia
 * †Waptia fieldensis – or unidentified comparable form
 * †Weeksina
 * †Wilkingia
 * †Wiwaxia
 * †Wiwaxia corrugata
 * †Worthenia
 * †Xenacanthus – or unidentified related form
 * †Yuknessia
 * †Zacanthoides
 * †Zittelloceras

Selected Mesozoic taxa of Utah

 * †Abydosaurus – type locality for genus
 * †Abydosaurus mcintoshi – type locality for species
 * †Acristavus
 * †Acristavus gagslarsoni
 * †Adelolophus – type locality for genus
 * †Adelolophus hutchisoni – type locality for species
 * †Adocus
 * †Alamosaurus
 * †Alamosaurus sanjuanensis
 * †Albanerpeton
 * †Albanerpeton cifellii – type locality for species
 * †Albanerpeton galaktion
 * †Albanerpeton gracilis
 * †Albanerpeton nexuosus
 * †Allocrioceras
 * Allosaurus Revised.jpg †[[Allosaurus]]
 * †Allosaurus fragilis
 * †Alphadon
 * †Alphadon attaragos
 * †Alphadon eatoni – type locality for species
 * †Alphadon halleyi
 * †Alphadon marshi – or unidentified comparable form
 * †Alphadon sahnii
 * †Amblotherium
 * †Ameribaatar – type locality for genus
 * †Ameribaatar zofiae – type locality for species
 * Amia calva 4.jpg [[Amia (genus)|Amia]]
 * †Anaflemingites
 * †Anasibirites
 * †Anasibirites angulosus
 * †Anasibirites bastini
 * †Anasibirites hircinus
 * †Anasibirites kingianus
 * †Anasibirites mojsisovicsi
 * †Anasibirites multiformis
 * †Anasibirites tenuistriatus
 * †Anchisauripus
 * †Anemia
 * Animantarx.jpg †[[Animantarx]] – type locality for genus
 * †Animantarx ramaljonesi – type locality for species
 * Anomia
 * †Anomoepus
 * †Apatopus
 * †Apatosaurus
 * †Apatosaurus louisae – type locality for species
 * †Araeodon
 * †Araucarioxylon
 * †Arctoceras
 * †Arctoprionites
 * †Arvinachelys – type locality for genus
 * †Aspenites
 * Astarte
 * Asteriacites
 * †Astroconodon
 * †Astroconodon delicatus – type locality for species
 * †Atreipus
 * Aublysodon.jpg †[[Aublysodon]] – tentative report
 * †Baena
 * †Barosaurus
 * †Barosaurus lentus
 * †Basilemys
 * †Bernissartia
 * †Brachauchenius
 * †Brachauchenius lucasi
 * †Brachiosaurus
 * †Brachyphyllum
 * †Brontomerus – type locality for genus
 * †Brontomerus mcintoshi – type locality for species
 * †Brontopodus
 * Brontosaurus NT small.jpg †[[Brontosaurus]]
 * †Brontosaurus parvus
 * †Bryceomys
 * †Bryceomys fumosus – type locality for species
 * †Bryceomys hadrosus
 * †Bryceomys intermedius – type locality for species
 * †Calycoceras
 * †Camarasaurus – type locality for genus
 * †Camarasaurus lentus – type locality for species
 * Campeloma
 * †Camptosaurus
 * †Camptosaurus dispar
 * †Carmelopodus – type locality for genus
 * †Cassiope
 * †Cedaromys
 * †Cedaromys bestia – type locality for species
 * †Cedaromys parvus – type locality for species
 * †Cedarosaurus – type locality for genus
 * †Cedarosaurus weiskopfae – type locality for species
 * †Cedarpelta – type locality for genus
 * †Cedarpelta bilbeyhallorum – type locality for species
 * †Cedrorestes – type locality for genus
 * †Cedrorestes crichtoni – type locality for species
 * †Ceratodus
 * Ceratosaurus nasicornis DB.jpg †[[Ceratosaurus]]
 * †Ceratosaurus nasicornis
 * Cerithiopsis
 * †Chamops
 * †Chinlea – type locality for genus
 * †Chirotherium
 * †Chirotherium rex – or unidentified comparable form
 * Chlamys
 * †Chondrites
 * †Cimexomys
 * †Cimexomys antiquus – or unidentified comparable form
 * †Cimolodon
 * †Cimolodon electus
 * †Cimolodon nitidus – or unidentified comparable form
 * †Cimolodon similis
 * Ptilodus.jpg †[[Cimolomys]]
 * †Cimolomys clarki
 * †Cimolomys milliensis – type locality for species
 * Cladophlebis
 * †Cladophlebis constricta
 * †Cladophlebis parva
 * †Claraia
 * †Coelophysis – tentative report
 * †Coelurus
 * †Coelurus fragilis
 * †Compsemys
 * †Coniophis
 * Corbula modesta 002.jpg [[Corbula]]
 * †Cretorectolobus
 * †Ctenacodon
 * †Cteniogenys
 * Cucullaea
 * †Cycadeoidea
 * Cylichna
 * †Dakotamys
 * †Dakotamys malcolmi – type locality for species
 * †Dakotasuchus
 * †Dakotasuchus kingi
 * †Deinonychus
 * †Denazinemys
 * †Denazinemys nodosa
 * Dentalium
 * Diabloceratops NT.jpg †[[Diabloceratops]] – type locality for genus
 * †Diabloceratops eatoni – type locality for species
 * †Dinehichnus – type locality for genus
 * †Dinochelys – type locality for genus
 * †Diplodocus
 * †Diplodocus hallorum
 * †Diplodocus longus
 * Discinisca – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Docodon
 * Doswellia BW.jpg †[[Doswellia]]
 * †Dryolestes
 * †Dryosaurus
 * †Dryosaurus altus
 * †Dystrophaeus – type locality for genus
 * †Dystrophaeus viaemalae – type locality for species
 * Elliptio
 * †Enchodus
 * †Enneabatrachus
 * †Entradasuchus – type locality for genus
 * †Entradasuchus spinosus – type locality for species
 * †Eocephalites
 * †Eodelphis
 * Eolambia cropped.png †[[Eolambia]] – type locality for genus
 * †Eolambia caroljonesa – type locality for species
 * †Eopolycotylus – type locality for genus
 * †Eopolycotylus rankini – type locality for species
 * †Equisetum
 * †Eryma
 * †Eucalyptus
 * †Eunaticina
 * †Euomphaloceras
 * †Euspira
 * †Euthlastus
 * †Eutretauranosuchus
 * †Exogyra
 * †Exogyra acroumbonata
 * †Exogyra levis
 * †Fabrosaurus – tentative report
 * Falcarius.jpg †[[Falcarius]] – type locality for genus
 * †Falcarius utahensis – type locality for species
 * Ficus
 * †Flemingites
 * †Gastonia – type locality for genus
 * †Gastonia burgei – type locality for species
 * †Geminiraptor
 * †Geminiraptor suarezarum
 * †Germanonautilus – tentative report
 * †Gervillaria
 * Bakevelliidae - Gervillia inflata.JPG †[[Gervillia]]
 * Gleichenia
 * †Glirodon – type locality for genus
 * †Glirodon grandis – type locality for species
 * Globularia – tentative report
 * †Glyptops
 * †Gondolella
 * †Gondolella planata
 * †Goniobasis – tentative report
 * †Goniopholis
 * †Grallator
 * †Gryphaea
 * Gryposaurus Monumentsis Skull, Alf Museum.JPG †[[Gryposaurus]]
 * †Gryposaurus monumentensis – type locality for species
 * †Hagryphus – type locality for genus
 * †Hagryphus giganteus – type locality for species
 * †Hamulus – tentative report
 * †Hausmania
 * †Hedenstroemia
 * †Hemicalypterus – type locality for genus
 * †Hippodraco – type locality for genus
 * †Hippodraco scutodens – type locality for species
 * †Hispanosauropus
 * †Homalopoma
 * †Hoplitosaurus – or unidentified comparable form
 * †Hoplosuchus – type locality for genus
 * †Hoplosuchus kayi – type locality for species
 * †Hybodus
 * †Iguanacolossus – type locality for genus
 * †Iguanacolossus fortis – type locality for species
 * †Iguanodon
 * †Iguanodon ottingeri – type locality for species
 * Ilex
 * †Ilex serrata
 * Inoceramus steenstrup, world's largest fossil mollusk.jpg †[[Inoceramus]]
 * †Inoceramus albertensis – or unidentified comparable form
 * †Inoceramus flavus
 * †Inoceramus gilberti
 * †Inoceramus koeneni
 * †Inoceramus pictus
 * †Inoceramus tenuistriatus – tentative report
 * †Inoceramus undabundus
 * †Inyoites
 * †Inyoites beaverensis – type locality for species
 * †Inyoites oweni
 * †Iridotriton – type locality for genus
 * †Ischyrhiza – or unidentified comparable form
 * Pteriidae - Isognomon maxillatus.JPG [[Isognomon]]
 * †Janumys – type locality for genus
 * †Janumys erebos – type locality for species
 * †Janumys erebros
 * †Jugulator
 * †Jugulator amplissimus
 * †Kallirhynchia
 * †Kamerunoceras
 * †Kayentapus
 * †Koparion – type locality for genus
 * †Koparion douglassi – type locality for species
 * Kosmoceratops NT small.jpg †[[Kosmoceratops]] – type locality for genus
 * †Kosmoceratops richardsoni – type locality for species
 * †Kouphichnium
 * †Leidyosuchus
 * †Lepidotes
 * Lepisosteus
 * †Leptalestes
 * Lima
 * †Lissodus
 * †Lonchidion
 * Lopha
 * Lucina
 * Lythronax by Tomopteryx.png †[[Lythronax]] – type locality for genus
 * †Lythronax argestes – type locality for species
 * †Machairoceratops – type locality for genus
 * †Machairoceratops cronusi – type locality for species
 * †Macroelongatoolithus
 * Magnolia
 * †Mammites
 * †Marshosaurus – type locality for genus
 * †Marshosaurus bicentesimus – type locality for species
 * †Martharaptor – type locality for genus
 * †Martharaptor greenriverensis – type locality for species
 * †Meekoceras
 * †Meekoceras davisi
 * †Meekoceras gracilitatis
 * †Meekoceras millardense – type locality for species
 * †Meekoceras olivieri – type locality for species
 * †Megalosauripus
 * †Megasphaeroceras
 * †Melvius
 * †Melvius chauliodous – or unidentified comparable form
 * †Meniscoessus
 * †Meniscoessus intermedius
 * †Mesodma
 * †Mesodma formosa – or unidentified comparable form
 * †Mesodma hensleighi – or unidentified comparable form
 * †Mesodma minor – or unidentified comparable form
 * †Mesodma thompsoni – or unidentified comparable form
 * †Metoicoceras
 * †Metoicoceras geslinianum
 * Colored Fig 36 Moabo Skeleton.tif †[[Moabosaurus]] – type locality for genus
 * Modiolus
 * †Monanthesia
 * †Myledaphus
 * †Myledaphus bipartitus
 * †Myophorella
 * †Myophorella livinigstonensis
 * †Myophorella monatanaensis
 * †Myophorella yellowstonensis
 * †Myophoria
 * †Mytilus
 * †Naomichelys
 * Nasutoceratops skeleton.jpg †[[Nasutoceratops]] – type locality for genus
 * †Nasutoceratops titusi – type locality for species
 * †Naticopsis
 * †Naticopsis depressispira
 * †Naticopsis fenestravella – type locality for species
 * †Naticopsis utahensis – type locality for species
 * †Nedcolbertia – type locality for genus
 * †Neocardioceras
 * †Neocardioceras juddii
 * †Nerinea – tentative report
 * Neritina
 * †Nezpercius
 * †Normannites – tentative report
 * Nothronychus graffami, Glen Canyon Dam Visitors' Center.JPG †[[Nothronychus]]
 * †Nothronychus graffami – type locality for species
 * Nucula
 * †Odaxosaurus
 * †Odaxosaurus piger – or unidentified comparable form
 * †Odaxosaurus priscus
 * †Odaxosaurus roosevelti – type locality for species
 * †Opisthias
 * †Ornithomimus
 * Ostrea
 * Fighting Othnielia.jpg †[[Othnielosaurus]]
 * †Othnielosaurus consors
 * †Otozoum
 * †Ovaloolithus
 * †Ovaloolithus tenuisus – type locality for species
 * †Ovaloolithus utahensis – type locality for species
 * †Owenites
 * †Owenites carpenteri
 * †Owenites koeneni
 * †Pagiophyllum
 * †Palmulasaurus – type locality for genus
 * †Palmulasaurus quadratus – type locality for species
 * †Paracimexomys
 * †Paracimexomys judithae – or unidentified comparable form
 * †Paracimexomys magnus
 * †Paracimexomys perplexus – type locality for species
 * †Paracimexomys priscus – or unidentified comparable form
 * †Paracimexomys robisoni – type locality for species
 * †Paramacellodus
 * Parasaurolophus cyrtocristatus.jpg †[[Parasaurolophus]]
 * †Parasaurolophus cyrtocristatus
 * †Paronychodon – or unidentified comparable form
 * †Parotosuchus
 * †Peloroplites – type locality for genus
 * †Peloroplites cedrimontanus – type locality for species
 * Pholadomya
 * †Pholadomya inaequiplicata
 * †Pholadomya kingi
 * †Pinacosuchus – type locality for genus
 * †Pinacosuchus mantiensis – type locality for species
 * Pinna
 * †Pistia – report made of unidentified related form or using admittedly obsolete nomenclature
 * Placenticeras meeki.jpg †[[Placenticeras]]
 * †Placenticeras cumminsi
 * †Plagiostoma
 * †Planicoxa – type locality for genus
 * †Planicoxa venenica – type locality for species
 * †Planolites
 * †Pleuronautilus
 * Pleurotomaria – tentative report
 * Plicatula
 * †Poposaurus
 * †Poposaurus gracilis
 * †Preprismatoolithus
 * †Priacodon
 * †Prismatoolithus
 * †Prismatoolithus jenseni – type locality for species
 * †Proplacenticeras
 * †Protocardia
 * †Pseudomelania
 * †Pseudotetrasauropus
 * †Pteraichnus
 * †Pteraichnus saltwashensis – or unidentified comparable form
 * †Pteraichnus stokesi – or unidentified comparable form
 * Pycnodonte
 * †Pycnodonte newberryi
 * Redondasaurus bermani at CMNH 04.jpg †[[Redondasaurus]]
 * †Redondasaurus gregorii
 * †Rhadinosteus – type locality for genus
 * †Rhadinosteus parvus – type locality for species
 * †Rhynchonella – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Richardoestesia
 * †Richardoestesia isosceles – or unidentified comparable form
 * Rogerella
 * Salix
 * †Sauropelta – or unidentified comparable form
 * †Scalamagnus
 * †Scalamagnus tropicensis – type locality for species
 * †Scapherpeton
 * †Schillerosaurus – type locality for genus
 * †Scotiophryne
 * †Scoyenia
 * Skeletal reconstruction of Seitaad ruessi.jpg †[[Seitaad]] – type locality for genus
 * †Seitaad ruessi – type locality for species
 * †Semionotus
 * †Semionotus kanabensis – type locality for species
 * Serpula
 * †Sexta
 * †Siats – type locality for genus
 * †Siats meekerorum – type locality for species
 * †Skolithos
 * Solemya
 * †Spheroolithus
 * Spirorbis – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Squatirhina
 * †Squatirhina americana
 * †Stagonolepis
 * †Stegopodus – type locality for genus
 * Stegosaurus stenops sophie wiki martyniuk.png †[[Stegosaurus]]
 * †Stegosaurus stenops – or unidentified comparable form
 * †Stegosaurus ungulatus
 * †Stephanoceras
 * †Stokesosaurus – type locality for genus
 * †Stokesosaurus clevelandi – type locality for species
 * †Talos – type locality for genus
 * †Talos sampsoni – type locality for species
 * †Tanycolagreus
 * †Tanycolagreus topwilsoni
 * †Tempskya
 * †Tempskya jonesii – type locality for species
 * †Tempskya knowltoni
 * †Tempskya minor
 * †Tempskya superba
 * †Tempskya whiteheadi – type locality for species
 * †Tenontosaurus
 * Teratophoneus curriei.png †[[Teratophoneus]] – type locality for genus
 * †Teratophoneus curriei – type locality for species
 * Teredolites
 * †Tetrasauropus
 * †Thalassinoides
 * †Therangospodus – type locality for genus
 * †Theretairus
 * Thracia
 * †Torvosaurus
 * †Toxolophosaurus – or unidentified comparable form
 * †Trachodon
 * LA-Triceratops mount-2.jpg †[[Triceratops]]
 * †Triconolestes – type locality for genus
 * †Triconolestes curvicuspis – type locality for species
 * †Trigonia
 * †Trigonia americana
 * †Trigonia elegantissima
 * †Trigonia montanaensis
 * †Trinacromerum
 * †Trinacromerum bentonianum – tentative report
 * †Trisauropodiscus
 * Turritella
 * †Tyrannosauripus – type locality for genus
 * †Ussurites
 * †Ussurites hosei
 * †Utahceratops – type locality for genus
 * †Utahceratops gettyi – type locality for species
 * Utahraptor scale.png †[[Utahraptor]] – type locality for genus
 * †Utahraptor ostrommaysi – type locality for species
 * †Uteodon
 * †Uteodon aphanoecetes
 * Valvata
 * †Vancleavea
 * †Vancleavea campi
 * †Venenosaurus – type locality for genus
 * †Venenosaurus dicrocei – type locality for species
 * †Vex
 * Viviparus
 * †Worthenia
 * †Worthenia windowblindensis – type locality for species
 * †Wyomingites
 * †Xenoceltites
 * †Xenoceltites cordilleranus
 * †Xenoceltites subevolutus
 * Yurgovuchia.jpg †[[Yurgovuchia]] – type locality for genus
 * †Yurgovuchia doellingi – type locality for species
 * †Zamites
 * †Zamites powelli
 * †Zamites tidwellii – type locality for species

Selected Cenozoic taxa of Utah

 * Abies
 * †Acrocera
 * †Agriochoerus
 * Alligator
 * Allognathosuchus.JPG †[[Allognathosuchus]] – or unidentified comparable form
 * Amia
 * Amyda
 * †Anosteira
 * Anthonomus
 * Antilocapra
 * †Antilocapra americana – or unidentified comparable form
 * Apalone
 * ArctodusSimusReconstruct.jpg †[[Arctodus]]
 * †Arctodus simus
 * †Artemisia
 * †Baena
 * †Basirepomys
 * †Bembidium
 * Bison
 * †Bison latifrons – tentative report
 * †Bittacus
 * †Bootherium
 * †Bootherium bombifrons
 * †Boverisuchus
 * †Boverisuchus vorax – type locality for species
 * †Brachyhyops
 * Brachylagus
 * †Brachylagus idahoensis – or unidentified comparable form
 * Camelops hesternus Sergiodlarosa.jpg †[[Camelops]]
 * †Camelops hesternus – or unidentified comparable form
 * Camponotus
 * Canis
 * †Canis dirus – or unidentified comparable form
 * †Canis latrans – tentative report
 * †Canis lupus
 * †Catopsalis
 * †Catopsalis fissidens
 * †Champsosaurus
 * Chara
 * Cheilosia
 * †Chipetaia
 * †Chipetaia lamporea – type locality for species
 * †Chisternon
 * †Chriacus
 * †Colodon
 * †Compsemys
 * †Coniatus
 * Coryphodon.jpg †[[Coryphodon]]
 * Crocodylus
 * †Crocodylus acer – type locality for species
 * †Crocodylus affinis
 * Culex
 * †Cuterebra
 * Dicranomyia
 * †Dinohippus
 * †Diplacodon
 * †Diprionomys
 * †Duchesnehippus
 * †Duchesneodus
 * †Echmatemys
 * †Ectoconus
 * †Elliptio
 * Eobasileus cropped.png †[[Eobasileus]]
 * †Eobasileus cornutus
 * †Eoconodon
 * †Eonessa – type locality for genus
 * †Eonessa anaticula – type locality for species
 * †Epicaerus
 * †Epihippus
 * †Epiphanis
 * Equus
 * †Equus conversidens – tentative report
 * Erethizon
 * †Erethizon dorsatum – tentative report
 * †Eucastor
 * Plos One 108865 Fig 3 A Euglossopteryx biesmeijeri.png †[[Euglossopteryx]] – type locality for genus
 * †Euglossopteryx biesmeijeri – type locality for species
 * Eutamias
 * †Eutamias minimus
 * †Goniacodon
 * †Hadrianus
 * †Haplolambda – or unidentified comparable form
 * †Harpagolestes
 * †Helaletes
 * †Helodermoides – tentative report
 * †Herpetotherium
 * †Heteraletes
 * †Hoplochelys
 * Hyaenodon NT small.jpg †[[Hyaenodon]]
 * †Hyaenodon vetus – or unidentified comparable form
 * Hydrobia – or unidentified comparable form
 * †Hylobius
 * †Hyopsodus
 * †Hypohippus
 * †Hypolagus
 * †Hyrachyus
 * †Hyracodon
 * †Hyracotherium
 * †Hyracotherium vasacciense
 * †Kimbetohia
 * Laccophilus
 * †Lambdotherium
 * Lemmiscus
 * †Lemmiscus curtatus
 * Lepisosteus
 * Leptomeryx BW.jpg †[[Leptomeryx]]
 * †Leptoreodon
 * †Leptotragulus
 * Lepus
 * †Lepus townsendii – or unidentified comparable form
 * †Limnocyon
 * †Limnocyon verus – or unidentified comparable form
 * Lynx
 * †Lynx canadensis – or unidentified comparable form
 * †Mammut
 * †Mammut americanum
 * †Mammuthus
 * †Mammuthus columbi
 * MammothVsMastodon.jpg, or American mastodon (right), and a Mammuthus primigenius, or wooly mammoth (left)]] †Mammuthus primigenius''
 * †Megalonyx
 * †Megalonyx jeffersonii
 * †Menops
 * †Merriamoceros
 * †Mesonyx
 * †Mesonyx obtusidens
 * †Metaliomys – type locality for genus
 * †Metarhinus
 * †Metatelmatherium
 * Miacis cropped.png †[[Miacis]]
 * †Microsyops
 * Microtus
 * †Microtus montanus
 * †Miocyon
 * Mustela
 * †Mustela richardsonii – tentative report
 * †Nemotelus
 * Neogale
 * †Neogale vison
 * †Neoplagiaulax
 * †Neoplagiaulax macintyrei
 * Neotamias
 * Neotoma
 * †Notharctus
 * †Notharctus tenebrosus – or unidentified comparable form
 * Odocoileus
 * Ondatra
 * †Oodectes – tentative report
 * Ophryastes
 * †Oxyacodon
 * San Diego Paramylodon.jpg Paramylodon]] †Paramylodon
 * †Paramylodon harlani – or unidentified comparable form
 * †Paramys
 * †Parectypodus
 * †Paronychomys
 * †Peratherium
 * Peromyscus
 * †Peromyscus maniculatus
 * Phenacomys
 * †Phenacomys intermedius
 * Phyllobius
 * †Phyllophaga
 * Physa
 * Picea
 * Pinus
 * †Plastomenoides
 * Plecia
 * †Poabromylus
 * †Poebrodon
 * †Polemonium – or unidentified comparable form
 * Presbyornis Enhancement.jpg †[[Presbyornis]] – type locality for genus
 * †Procaimanoidea – type locality for genus
 * †Procaimanoidea utahensis – type locality for species
 * †Procas
 * †Procynodictis
 * †Prodaphaenus
 * †Protitanotherium
 * †Protylopus
 * †Proviverra
 * †Ptilodus
 * †Ptilodus mediaevus
 * †Ptilodus tsosiensis – or unidentified comparable form
 * Rhinoclemmys – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Saniwa
 * †Saniwa ensidens
 * †Sargus
 * †Sinopa
 * †Smilodectes
 * †Smilodectes gracilis
 * Smilodon fatalis.jpg †[[Smilodon]]
 * †Smilodon fatalis – or unidentified comparable form
 * Sorex
 * †Sorex palustris
 * Spermophilus
 * †Spermophilus armatus – or unidentified comparable form
 * †Sphenocoelus
 * †Sthenodectes
 * †Stygimys
 * †Stygimys kuszmauli
 * †Stylemys
 * Stylinodon mirusDB24.jpg]] †Stylinodon''
 * †Taeniolabis
 * †Taeniolabis taoensis
 * †Tapocyon
 * Taxidea
 * †Taxidea taxus
 * Thomomys
 * †Thomomys talpoides
 * †Trogosus
 * †Tylocephalonyx
 * †Uintacyon
 * Uintatherium DB.jpg †[[Uintatherium]]
 * †Valenia
 * †Viverravus
 * Viviparus
 * Vulpes
 * †Vulpes vulpes
 * Zapus