List of the prehistoric life of South Dakota

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

Precambrian

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

Paleozoic

• † Acrotreta
• † Agnostogonus
  • † Agnostogonus incognitus – or unidentified comparable form

• 

  Assemblage of fossils of the Cambrian trilobite Agnostus

  † Agnostus
• † Amiaspis
  • † Amiaspis erratica
• † Ankoura
  • † Ankoura triangularis
  • † Ankoura triangularus
• † Aphelaspis
  • † Aphelaspis haguei
• † Arapahoia
  • † Arapahoia spathulata
  • † Arapahoia spatulata
• † Arcifimbria
  • † Arcifimbria pahasapaensis
• † Arcifimbrin
  • † Arcifimbrin pahasapaensis
• † Arcuolimbus
  • † Arcuolimbus convexus
• † Billingsella
  • † Billingsella wichitaensis
• † Blountia
  • † Blountia arcuosa
  • † Blountia arion
  • † Blountia bristolensis
  • † Blountia eleanora
  • † Blountia janei
  • † Blountia nixonensis
• † Blountiella
  • † Blountiella alberta
  • † Blountiella cordilleria
• † Briscoia
  • † Briscoia angustilimba – or unidentified comparable form
  • † Briscoia dalyi
• † Bynumia
  • † Bynumia eumus
• † Bynumina
• † Camaraspis

• 

  Life restoration of the Carboniferous Chimaera relative Caseodus

  † Caseodus
  • † Caseodus eatoni – or unidentified related form
• † Cedaria
• † Cedarina
  • † Cedarina cordillerae
  • † Cedarina dakotaensis
  • † Cedarina dakotensis
• † Cheilocephalus
  • † Cheilocephalus brevilobus
• † Cladodus – or unidentified comparable form
• † Clelandia
  • † Clelandia typicalis
• † Coosella
  • † Coosella onusta
  • † Coosella perplexa
  • † Coosella prolifica
• † Coosia
  • † Coosia albertensis
  • † Coosia alethes
• † Coosina
  • † Coosina ariston
• † Crepicephalus
  • † Crepicephalus auratus
  • † Crepicephalus buttsimontanaenis
  • † Crepicephalus buttsimontanaensis
  • † Crepicephalus buttsimotanaensis
  • † Crepicephalus deadwoodensis
  • † Crepicephalus rectus
  • † Crepicephalus snowyenis
  • † Crepicephalus snowyensis
• † Cyrtogomphoceras
• † Dartonaspis
  • † Dartonaspis wichitaensis
  • † Dartonaspis witchitaensis
• † Deadwoodia
• † Dicellomus
• † Diestoceras
• † Dikelocephalus
  • † Dikelocephalus minnesotensis
• † Dresbachia
  • † Dresbachia amata

• 

  Life restoration of the Late Devonian-Carboniferous Chimaera relative Edestus

  † Edestus
• † Ellipsocephaloides
  • † Ellipsocephaloides curtus
  • † Ellipsocephaloides monensis
  • † Ellipsocephaloides monsensis
• † Endoceras
• † Eoorthis
  • † Eoorthis indianola
  • † Eoorthis remnicha
• † Ephippiorthoceras
• † Glaphyraspis
  • † Glaphyraspis newtoni
  • † Glaphyraspis parva
• † Hadragnostus
  • † Hadragnostus modestus
• † Hardyoides
  • † Hardyoides tenerus
• † Holmesella
  • † Holmesella quadrata
• † Homagnostus
  • † Homagnostus obesus

• 

  Fossilized shells of the Cambrian-Permian brachiopod relative Hyolitha

  † Hyolithes
• † Hysteropleura
  • † Hysteropleura schucherti
• † Idahoia
  • † Idahoia serapio
  • † Idahoia wisconsensis
• † Idiomesus
  • † Idiomesus granti
  • † Idiomesus infimus
• † Illaenurus
  • † Illaenurus priscus

• 

  Restoration of the Carboniferous-Permian ray-like cartilaginous fish Janassa (top and left)

  † Janassa
• † Kingstonia
  • † Kingstonia bealesoides
  • † Kingstonia scrinium
  • † Kingstonia spicata
  • † Kingstonia spicta
  • † Kingstonia walcotti
  • † Kingstonia walcottia
• † Komaspidella
  • † Komaspidella hata
  • † Komaspidella lata
• † Kormagnostus
  • † Kormagnostus beltensis
  • † Kormagnostus seclusus
• † Lambeoceras – tentative report
• † Lingulella
• † Lingulepis
• † Linnarssonella

• 

  Restoration of the Carboniferous-Early Triassic cartilaginous fish Listracanthus

  † Listracanthus
  • † Listracanthus hystrix
• † Litagnostus
  • † Litagnostus paralis
• † Llanoaspis
  • † Llanoaspis undulata
• † Meniscocorypphe
  • † Meniscocorypphe platycephala
• † Menomonia
  • † Menomonia prooculis
• † Meteoraspis
  • † Meteoraspis keeganensis
  • † Meteoraspis metra
  • † Meteoraspis robusta
• † Modocia
  • † Modocia centralis
  • † Modocia oweni
• † Monocheilus
  • † Monocheilus micros
  • † Monocheilus truncatus
• † Nahannagnostus
  • † Nahannagnostus nganasanicus
  • † Nahannagnostus nganasanious
• † Parabolinoides
  • † Parabolinoides contractus
  • † Parabolinoides granulosus
• † Pemphigaspis
  • † Pemphigaspis bullata
• † Petrodus
  • † Petrodus patelliformis
• † Plethopeltis
• † Prosaukia
  • † Prosaukia misa
• † Pseudagnostus
  • † Pseudagnostus douvillei
  • † Pseudagnostus josephus
• † Ptchaspis
  • † Ptchaspis striata
• † Ptychaspis
  • † Ptychaspis bullasa
  • † Ptychaspis miniscaensis
• † Ptychopleurites
  • † Ptychopleurites spinosa
• † Pugionicauda
  • † Pugionicauda paradoxa
• † Rasettia
  • † Rasettia capax
  • † Rasettia magna
• † Saukiella
  • † Saukiella pyrene
• † Spyroceras
• † Syspacheilus
• † Taenicephalus
  • † Taenicephalus nasutus
  • † Taenicephalus shumardi
• † Terranovella
  • † Terranovella dorsalis

• 

  Fossil of the Cambrian trilobite Tricrepicephalus

  † Tricrepicephalus
  • † Tricrepicephalus conia
  • † Tricrepicephalus coria
  • † Tricrepicephalus metra
  • † Tricrepicephalus tripunctatus
• † Tripteroceras
• † Uncaspis
  • † Uncaspis limbata
  • † Uncaspis unca
• † Welleraspis
  • † Welleraspis group#1 – informal
  • † Welleraspis group#2 – informal
• † Westonoceras
• † Wilsonoceras
• † Winnipegoceras

Mesozoic

Main article: List of the Mesozoic life of South Dakota

Selected Mesozoic taxa of South Dakota

• Acipenser – or unidentified comparable form
• † Actinocamax
• † Adocus
• † Agerostrea

• 

  Restoration of the Late Jurassic theropod dinosaur Allosaurus

  † Allosaurus
• † Alphadon
  • † Alphadon marshi
• † Anatotitan
  • † Anatotitan copei
• † Anomia
• † Anzu – type locality for genus
  • † Anzu wyliei – type locality for species
• † Apatosaurus
• † Araucarioxylon

• 

  Mounted fossilized skeleton of the Late Cretaceous sea turtle Archelon

  † Archelon – type locality for genus
  • † Archelon ischyros – type locality for species
• † Artocarpus – report made of unidentified related form or using admittedly obsolete nomenclature
• Aspideretes
• † Asplenium
• † Baculites
  • † Baculites clinolobatus
  • † Baculites compressus
  • † Baculites grandis
  • † Baculites larsoni
  • † Baculites ovatus
  • † Baculites yokoyamai
• † Bananogmius
• † Baptornis
  • † Baptornis varneri – type locality for species

• 

  Restoration of the Late Jurassic sauropod dinosaur Barosaurus rearing to defend itself against a pair of the theropod Allosaurus

  † Barosaurus – type locality for genus
  • † Barosaurus lentus – type locality for species
• † Basilemys
• † Belemnitella
  • † Belemnitella bulbosa
• Beryx – or unidentified related form
• † Bolodon
  • † Bolodon hydei – type locality for species
• † Borealosuchus
  • † Borealosuchus sternbergii
• Brachidontes
• † Brachychampsa
  • † Brachychampsa montana
• † Brodavis
  • † Brodavis baileyi – type locality for species
• † Caenagnathus
• † Calycoceras
  • † Calycoceras boreale – type locality for species
  • † Calycoceras dromense – or unidentified comparable form

• 

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

  † Camarasaurus
• Campeloma
• † Caturus
• † Champsosaurus
• † Cimexomys
• † Cimolodon
  • † Cimolodon nitidus
• † Cimolomys
  • † Cimolomys gracilis
• † Claosaurus
  • † Claosaurus affinis – type locality for species
• † Clidastes
  • † Clidastes propython
• † Cocculus

• 

  Fossilized shell of the Late Cretaceous ammonoid Collignoniceras

  † Collignoniceras
  • † Collignoniceras collisniger – type locality for species
  • † Collignoniceras jorgenseni – type locality for species
  • † Collignoniceras percarinatum
  • † Collignoniceras praecox
  • † Collignoniceras vermilionense
  • † Collignoniceras woolgari
  • † Collignoniceras woollgari
• † Compsemys
• Corbula
• † Corbulamella
• † Crenella
  • † Crenella elegantula
• † Cretolamna
  • † Cretolamna appendiculata
• † Cteniogenys
• Cucullaea
• † Cuspidaria

• 

  Fossil of the Jurassic-Cretaceous cycad relative Cycadeoidea

  † Cycadeoidea
  • † Cycadeoidea aspera – type locality for species
  • † Cycadeoidea cicatricula – type locality for species
  • † Cycadeoidea colei – type locality for species
  • † Cycadeoidea colossalis – type locality for species
  • † Cycadeoidea dacotensis
  • † Cycadeoidea excelsa – type locality for species
  • † Cycadeoidea formosa – type locality for species
  • † Cycadeoidea furcata – type locality for species
  • † Cycadeoidea ingens – type locality for species
  • † Cycadeoidea insolita – type locality for species
  • † Cycadeoidea jenneyana
  • † Cycadeoidea Jenneyana
  • † Cycadeoidea marshiana – type locality for species
  • † Cycadeoidea mcbridei – type locality for species
  • † Cycadeoidea McBridei – type locality for species
  • † Cycadeoidea minnekahtensis – type locality for species
  • † Cycadeoidea nana – type locality for species
  • † Cycadeoidea occidentalis – type locality for species
  • † Cycadeoidea paynei – type locality for species
  • † Cycadeoidea pulcherrima – type locality for species
  • † Cycadeoidea stillwelli – type locality for species
  • † Cycadeoidea turrita – type locality for species
  • † Cycadeoidea Wellsii – type locality for species
• † Dakotadon
  • † Dakotadon lakotaensis
• † Dakotaraptor – type locality for genus
  • † Dakotaraptor steini – type locality for species
• † Desmatochelys
• † Didelphodon
• † Diplodocus
• † Discoscaphites
  • † Discoscaphites conradi
  • † Discoscaphites gulosus
  • † Discoscaphites rossi – type locality for species
• † Dolichorhynchops
  • † Dolichorhynchops osborni
• † Edmontonia
  • † Edmontonia longiceps

• 

  Life restoration of the Late Cretaceous duck-billed dinosaur Edmontosaurus annectens

  † Edmontosaurus
• † Elasmosaurus
  • † Elasmosaurus intermedius – type locality for species
• † Enchodus
• † Eubostrychoceras
• † Eucalycoceras
• † Eutrephoceras
• † Geosternbergia
  • † Geosternbergia maiseyi – type locality for species
• Gleichenia
• † Globidens
  • † Globidens alabamensis
  • † Globidens dakotensis – type locality for species
  • † Globidens schurmanni – type locality for species
• † Glyptops
• Glyptostrobus
  • † Glyptostrobus europaeus
• † Gorgosaurus
• † Hainosaurus
• † Hamites

• 

  Life restoration of the Late Cretaceous toothed bird Hesperornis

  † Hesperornis
  • † Hesperornis regalis – or unidentified comparable form
• Hiatella – tentative report
• † Hoplitosaurus
  • † Hoplitosaurus marshi – type locality for species
• † Hoploparia
• † Hoploscaphites
  • † Hoploscaphites comprimus
  • † Hoploscaphites melloi – type locality for species
  • † Hoploscaphites nicolletii
• † Hulettia
• † Hypsilophodon
  • † Hypsilophodon wielandi – type locality for species
• † Ichthyodectes

• 

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

  † Inoceramus
  • † Inoceramus apicalis
  • † Inoceramus ginterensis
  • † Inoceramus tenuis – or unidentified related form
  • † Inoceramus tenuistriatus – tentative report
• † Ischyodus
  • † Ischyodus rayhaasi
• Isurus
• † Jeletzkytes
  • † Jeletzkytes dorfi
  • † Jeletzkytes nebrascensis
  • † Jeletzkytes spedeni – type locality for species
• Lamna

• 

  Fossilized skull of the Late Cretaceous alligator relative Leidyosuchus

  † Leidyosuchus
• † Lemnaceae
• † Lepidotes – tentative report
• Lepisosteus
• † Leptalestes
  • † Leptalestes cooki
  • † Leptalestes krejcii
• † Lucina – tentative report
• † Martinectes
  • † Martinectes bonneri
• † Melvius
• † Meniscoessus
  • † Meniscoessus robustus
• † Mesodma
  • † Mesodma formosa
  • † Mesodma hensleighi
  • † Mesodma thompsoni
• † Modiolus

• 

  Life restoration of two of the Late Cretaceous Mosasaurus

  † Mosasaurus
  • † Mosasaurus missouriensis – type locality for species
• † Myledaphus
  • † Myledaphus bipartitus
• † Nelumbo
• † Neocardioceras
  • † Neocardioceras transiens – type locality for species
• Nucula
  • † Nucula percrassa
• † Ophiomorpha
• † Ornithomimus
• † Osmakasaurus
  • † Osmakasaurus depressus – type locality for species
• Ostrea
• † Otoscaphites
• † Oxytoma

• 

  Fossilized skeleton of the Late Cretaceous dome-headed dinosaur Pachycephalosaurus

  † Pachycephalosaurus – type locality for genus
  • † Pachycephalosaurus wyomingensis – type locality for species
• † Pachyrhizodus
• † Pahasapasaurus – type locality for genus
  • † Pahasapasaurus haasi – type locality for species
• † Palmoxylon
• Panopea
• † Paronychodon
  • † Paronychodon lacustris
• Pholadomya
• † Pistia – report made of unidentified related form or using admittedly obsolete nomenclature
• † Placenticeras
  • † Placenticeras pseudoplacenta
• Platanus

• 

  Life restoration of the Late Cretaceous mosasaur Platecarpus

  † Platecarpus
  • † Platecarpus somenensis – or unidentified comparable form
  • † Platecarpus tympaniticus
• † Plesiobaena
• † Plioplatecarpus
  • † Plioplatecarpus primaevus – type locality for species
• † Prognathodon
  • † Prognathodon overtoni – type locality for species
• † Proplacenticeras
• † Protocardia
• † Protosphyraena
• † Protostega

• 

  Life restoration of the Late Cretaceous pterosaur Pteranodon

  † Pteranodon
  • † Pteranodon longiceps
• † Ptychodus
  • † Ptychodus occidentalis
• Quercus
• † Rhamnus
• † Richardoestesia
  • † Richardoestesia isosceles
• Sassafras
• † Scaphites
• † Sequoia
• Solemya
• Sphaerium
• † Sphenobaiera
• † Sphenodiscus
  • † Sphenodiscus beecheri – tentative report
  • † Sphenodiscus lobatus
  • † Sphenodiscus pleurisepta
• Squalicorax
  • † Squalicorax falcatus
• Squalus

• 

  Animated life restoration of the Late Cretaceous plesiosaur Styxosaurus

  † Styxosaurus
  • † Styxosaurus browni
  • † Styxosaurus snowii – type locality for species
• † Tatankaceratops – type locality for genus
  • † Tatankaceratops sacrisonorum – type locality for species
• Taxodium
• † Thescelosaurus
  • † Thescelosaurus neglectus
• † Thespesius – type locality for genus
  • † Thespesius occidentalis – type locality for species
• † Torosaurus
  • † Torosaurus latus
• † Toxochelys
  • † Toxochelys latiremis
• † Trachodon
• † Tragodesmoceras
  • † Tragodesmoceras carlilense
  • † Tragodesmoceras carlilensis
• † Triceratops
  • † Triceratops horridus
• † Tylosaurus
  • † Tylosaurus proriger

• 

  Fossilized skeleton of the Late Cretaceous tyrannosaur Tyrannosaurus

  † Tyrannosaurus
  • † Tyrannosaurus rex
• Viviparus
• † Yezoites
• Yoldia
• Ziziphus

Cenozoic

Main article: List of the Cenozoic life of South Dakota

Selected Cenozoic taxa of South Dakota

• † Aelurodon
• † Aepycamelus
• † Agnotocastor
• † Agriochoerus
• Alligator
  • † Alligator prenasalis – type locality for species
• † Ambystoma
  • † Ambystoma tigrinum

• 

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

  † Amebelodon
• † Ampelopsis
• † Amphechinus
• † Anchitherium
• Antilocapra
  • † Antilocapra americana
• Apalone
• † Aphelops
• † Archaeocyon
• † Archaeohippus
• † Archaeotherium
• † Arctodus
  • † Arctodus simus
• † Arctonasua
• Azolla
• † Barbourofelis
  • † Barbourofelis whitfordi
• † Bathornis
  • † Bathornis veredus
• Bison

  • 

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

    † Bison latifrons
• Blarina
  • † Blarina carolinensis – or unidentified comparable form
• † Bothriodon
• † Brachypsalis
• † Brachyrhynchocyon
• † Brontops
• Bufo
  • † Bufo woodhousei
• Buteo
• † Calippus
• † Camelops
• 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 latrans
  • † Canis lupus
• † Carpocyon
• Castor
  • † Castor canadensis – or unidentified comparable form
• † Catostomus
• Celtis
• Cercidiphyllum
• Charina
• Chrysemys
• Cnemidophorus
• † Colodon
• † Cormocyon
• † Cormohipparion

• 

  Fossilized skull of the Miocene pronghorn Cosoryx

  † Cosoryx
  • † Cosoryx furcatus
• † Cranioceras
• Crotalus
• † Cynarctoides
  • † Cynarctoides acridens
  • † Cynarctoides lemur
  • † Cynarctoides roii
• † Cynarctus
• † Cynodesmus
• Cynomys
• † Daphoenus
• † Desmatippus
• † Desmatochoerus
• † Desmocyon
• † Diceratherium

• 

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

  † Dinictis
• † Dinohyus
• † Dipoides
• † Domnina
• † Duchesnehippus
• † Duchesneodus
• † Ectopocynus
• † Ekgmowechashala
  • † Ekgmowechashala philotau – type locality for species
• Elaphe
  • † Elaphe vulpina
• † Elomeryx
• † Enhydrocyon
• † Entelodon
• † Eopelobates
• † Epicyon
• Equus
  • † Equus francisci
  • † Equus giganteus – or unidentified comparable form
• † Etheostoma

• 

  Life restoration of the Miocene elephant relative Eubelodon

  † Eubelodon
• † Eucastor
• † Eucommia
• Eumeces
  • † Eumeces septentrionalis
• † Eusmilus
• Ficus
• Geomys
• † Gigantocamelus
• Glyptostrobus
• † Gomphotherium
• Graptemys

• 

  Fossilized lower jaw of the Miocene-Pleistocene llama relative Hemiauchenia

  † Hemiauchenia
• † Hemicyon
• † Herpetotherium
  • † Herpetotherium fugax
• † Hesperocyon
• † Hesperotestudo
• Heterodon
• † Heteromeryx
• † Hipparion
• † Hippotherium
• † Homotherium – or unidentified comparable form
• † Hoplophoneus

• 

  Life restoration of the Eocene-Miocene creodont mammal Hyaenodon

  † Hyaenodon
  • † Hyaenodon crucians
  • † Hyaenodon horridus
  • † Hyaenodon montanus – or unidentified comparable form
  • † Hyaenodon mustelinus – type locality for species
• Hyla
• † Hypertragulus
• † Hypisodus
• † Hypohippus
• † Hypolagus
• † Hyporhina – type locality for genus
  • † Hyporhina antiqua – type locality for species
• † Hyracodon
• Ictalurus
• † Ischyrocyon
• † Ischyromys
• † Lambdoceras
• Lampropeltis
• Lepisosteus
• Lepomis
• † Leptauchenia
• † Leptictis

• 

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

  † Leptocyon
• † Leptomeryx
• Lepus
  • † Lepus americanus – or unidentified comparable form
• † Longirostromeryx
• † Macrorhineura – type locality for genus
  • † Macrorhineura skinneri – type locality for species
• † Mammacyon
• † 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
• Martes
• † Megacerops
• † Megachoerus – tentative report
• † Megaleptictis
  • † Megaleptictis altidens
• † Megalictis
  • † Megalictis ferox – type locality for species
• † Megalonyx
  • † Megalonyx leptostomus
  • † Megalonyx wheatleyi
• † Megapaloelodus – type locality for genus
• † Menoceras
• † Menops
• † Merychippus

• 

  Restoration of a herd of the Eocene-Miocene oreodont mammal Merychyus

  † Merychyus
• † Merycochoerus
• † Merycodus
• † Merycoides
• † Merycoidodon
• † Mesocyon
• † Mesohippus
• † Mesoreodon
• † Metamynodon
  • † Metamynodon planifrons
• † Michenia
• Microtus
• † Miniochoerus
• † Miohippus
  • † Miohippus grandis
• † Monosaulax
• † Moropus
• Mustela
• † Mylagaulus
• † Nannippus
• † Nanotragulus
• † Neohipparion – type locality for genus
• Neotoma
• Nerodia
  • † Nerodia sipedon
• † Nexuotapirus
• † Niglarodon
• † Nimravus
• Notophthalmus
• † Nototamias
• † Notropis
• † Noturus – tentative report
• Ondatra
• Onychomys
• † Oreodontoides
• Ortalis
• † Osbornodon
• † Otarocyon
• † Oxetocyon
• † Oxydactylus

• 

  Spiral-shaped fossilized burrow and associated skeleton of the Oligocene-Miocene beaver Palaeocastor

  † Palaeocastor
• † Palaeogale
• † Palaeolagus
• † Paracrax
• † Paradaphoenus
• † Paraenhydrocyon
• † Parahippus
• † Paramys
• † Paratomarctus
• † Paratylopus
• † Parictis
• † Peltosaurus
  • † Peltosaurus granulosus
• † Peraceras
• Perognathus
• Peromyscus
• † Philotrox
  • † Philotrox condoni
• † Phlaocyon
  • † Phlaocyon minor
• Phrynosoma
  • † Phrynosoma douglassi
• † Planera
• † Platygonus
• † Pliauchenia
• † Pliohippus

• 

  Life restoration of the Eocene-Oligocene camel Poebrotherium

  † Poebrotherium
• † Pogonodon
• † Procamelus
• † Procastoroides
• † Promartes
• † Promerycochoerus
• † Proscalops
• † Protapirus
• † Proterix
• † Protoceras
• † Protohippus
• † Protolabis
• Pseudacris

• 

  Restoration of the Miocene cat Pseudaelurus

  † Pseudaelurus
• † Pseudhipparion
• † Pseudoprotoceras
• Querquedula
• † Rana
  • † Rana catesbeiana
  • † Rana pipiens
• Reithrodontomys
• Rhineura
• Salvadora
• Scaphiopus
• † Sespia
• Sorex
  • † Sorex cinereus
• Spea
• Spermophilus

• 

  Mounted fossilized skeleton of the Pliocene-Pleistocene elephant relative Stegomastodon

  † Stegomastodon
  • † Stegomastodon mirificus
• † Steneofiber
• Strix
• † Stylemys
• † Subhyracodon
• † Sunkahetanka
  • † Sunkahetanka geringensis
• Sylvilagus
  • † Sylvilagus floridanus
• Tapirus

• 

  Restoration of the Miocene-Pliocene rhinoceros Teleoceras

  † Teleoceras
  • † Teleoceras major
• Thamnophis
  • † Thamnophis sirtalis
• Thomomys
• † Titanotylopus
• † Trigenicus
• † Trigonias
• Tympanuchus
• † Ursavus
• † Ustatochoerus
• Zapus
• Zelkova

References

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