# List of the prehistoric life of Kansas

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

## Precambrian

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

## Paleozoic
### Selected Paleozoic taxa of Kansas

* Life restoration of the Early Devonian-Permian "spiny shark" Acanthodes †Acanthodes
* †Achistrum
* †Acitheca
* †Acrodus – tentative report
* †Acroplous
* †Actiobates – type locality for genus
** †Actiobates peabodyi – type locality for species
* †Agassizodus
** †Agassizodus variabilis
* †Aglaocrinus
* †Alethopteris
** †Alethopteris grandini
** †Alethopteris serlii
* Ammodiscus – tentative report
* †Amphiscapha
* † Ananias – tentative report
* †Annularia
** †Annularia asteris
** †Annularia mucronata
* †Aphlebia
* Archaeolithophyllum
* Life restoration of the Carboniferous synapsid (mammal precursor) Archaeovenator †Archaeovenator – type locality for genus
** †Archaeovenator hamiltonensis – type locality for species
* †Archimylacris
* †Aristoceras
* †Artisia
* †Asterotheca
** †Asterotheca miltoni – or unidentified comparable form
* †Aviculopecten
** †Aviculopecten arctisulcatus
** †Aviculopecten mccoyi – type locality for species
** †Aviculopecten nodocosta
** †Aviculopecten occidentalis
** †Aviculopecten peculiaris – type locality for species
** †Aviculopecten sumnerensis – type locality for species
* Restoration of the Carboniferous Chimaera relative Belantsea †Belantsea – or unidentified comparable form
* †Bellerophon
** †Bellerophon graphicus – type locality for species
* †Blattoidea
* †Botryococcus
** †Botryococcus braunii
* †Calamites
** †Calamites cistii
* †Callipteris
** †Callipteris conferta
** †Callipteris lyratifolia – tentative report
* †Carbonita – tentative report
* Life restoration of the Carboniferous Chimaera relative Caseodus †Caseodus
** †Caseodus eatoni
* †Chomatodus
* †Chonetes
** †Chonetes mesoloba
* †Cladodus
* Cladophlebis
* †Cleiothyridina
** †Cleiothyridina orbicularis
* †Composita
** †Composita elongata
** †Composita ovata
** †Composita subtilita
* †Cordaicarpus
* †Cordaites
** †Cordaites principalis
* Fossil of the Carboniferous shark Ctenacanthus †Ctenacanthus
** †Ctenacanthus amblyxiphias
* †Cyathus
* †Cyclopteris
* †Cystodictya
* †Dentalium
* †Diplichnites
** †Diplichnites gouldi
* †Ductilodon – type locality for genus
* †Dunbaria – type locality for genus
* †Echinaria
* †Edestus
** †Edestus heinrichi – or unidentified comparable form
* †Edmondia
* Life restoration of the Carboniferous synapsid (mammal precursor) Eocasea †Eocasea – type locality for genus
** †Eocasea martini – type locality for species
* †Eoscopus – type locality for genus
** †Eoscopus lockardi – type locality for species
* †Euconcordia – type locality for genus
* †Fenestella
* †Fusulina
* †Geinitzina
* †Gervillia
* †Glenopteris
* †Glikmanius
** †Glikmanius occidentalis
* †Glyptopleura
* †Gordia
* †Helminthopsis
* †Hybodus
* Restoration of the Carboniferous synapsid (mammal precursor) Ianthasaurus †Ianthasaurus – type locality for genus
** †Ianthasaurus hardestiorum – type locality for species
* †Ianthodon – type locality for genus
** †Ianthodon schultzei – type locality for species
* †Isogramma
* †Janassa
* †Kawichthys – type locality for genus
** †Kawichthys moodiei – type locality for species
* †Kennedya – type locality for genus
* †Kirkella
* †Kouphichnium
* †Lepidodendron
* †Lingula
* †Lisca – type locality for genus
* †Lissodus
* Restoration of the Carboniferous-Early Triassic cartilaginous fish Listracanthus †Listracanthus
* Lithophaga
* †Lysorophus
* †Meganeuropsis – type locality for genus
** †Meganeuropsis permiana – type locality for species
* †Megatypus – type locality for genus
* †Metacoceras
* †Minilya
* †Misthodotes – type locality for genus
* †Modiolus
* †Naticopsis
* †Neoaganides
* †Neospirifer
** †Neospirifer cameratus
** †Neospirifer dunbari
** †Neospirifer kansasensis
* †Neuropteris
** †Neuropteris auriculata – tentative report
** †Neuropteris odontopteroides
** †Neuropteris ovata
** †Neuropteris scheuchzeri
* †Noeggerathia
* †Norwoodia
* Nucula
* Life restoration of the Carboniferous-Permian synapsid (mammal precursor) Ophiacodon †Ophiacodon – type locality for genus
** †Ophiacodon hilli – type locality for species
* †Orodus
* †Orthacanthus
* †Palaeoniscus
* †Paleolimulus – type locality for genus
* †Pecopteris
** †Pecopteris hemitelioides
** †Pecopteris unita
* †Petalodus
* †Petrolacosaurus – type locality for genus
** †Petrolacosaurus kansensis – type locality for species
* †Phillipsia – tentative report
* Fossilized shell of the Silurian-Early Triassic sea snail Platyceras †Platyceras
* †Platysomus
* Pleurotomaria
* †Samaropsis
* †Sandalodus – or unidentified comparable form
* †Sigillaria
** †Sigillaria brardii
* †Sphenophyllum
** †Sphenophyllum oblongifolium
** †Sphenophyllum stoukenbergi – or unidentified comparable form
** †Sphenophyllum thonii – or unidentified comparable form
* †Sphenopteris
* Restoration of the Carboniferous reptile Spinoaequalis †Spinoaequalis – type locality for genus
* †Spirifer
** †Spirifer rockymontanus – tentative report
* Spirorbis
* †Stemmatodus
* †Streptognathodus
** †Streptognathodus zethus
* †Syringopora
* †Tetrataxis
* †Therates – type locality for genus
* †Treptichnus
* †Undichna
** †Undichna britannica
** †Undichna simplicitas
* †Urba – type locality for genus
* Fossilized foliage of the Carboniferous-Permian conifer Walchia †Walchia
* †Wilkingia
* †Worthenia
* †Xyrospondylus
* Yoldia

## Mesozoic
### Selected Mesozoic taxa of Kansas

* Fossilized shell of the Late Cretaceous ammonoid cephalopod Acanthoscaphites †Acanthoscaphites – tentative report
** †Acanthoscaphites reesidei
* †Alzadasaurus – type locality for genus
* †Ampullina
* †Anomia
* †Apateodus
* †Apatornis
** †Apatornis celer – type locality for species
* †Apsopelix
** †Apsopelix anglicus
* Aralia
* Arundo
* †Asplenium
* †Aviculopecten
** †Aviculopecten occidentalis
* Fossilized shell of the Late Cretaceous ammonoid cephalopod Baculites †Baculites
** †Baculites clinolobatus
** †Baculites compressus
** †Baculites grandis
** †Baculites ovatus
** †Baculites pseudovatus – type locality for species
* †Bananogmius
* †Baptornis – type locality for genus
** †Baptornis advenus – type locality for species
* Botula
** †Botula carolinensis
* Life restoration of the Late Cretaceous plesiosaur Brachauchenius hunting a hesperornithiform bird †Brachauchenius – type locality for genus
** †Brachauchenius lucasi – type locality for species
* Brachidontes
* Cadulus
* †Calycoceras
* Carcharias
* Cardita
* †Cassiope
* †Ceratophyllum
* Chiloscyllium
* †Chondrites
* †Cimolichthys
** †Cimolichthys nepaholica
* Cladophlebis
* †Claosaurus
** †Claosaurus agilis – type locality for species
* Life restoration of the Late Cretaceous mosasaurid Clidastes †Clidastes
** †Clidastes liodontus
** †Clidastes velox
* Cliona
* †Collignoniceras
** †Collignoniceras woollgari
* †Coniasaurus
* Corbula
* Crassostrea
* †Cretolamna
** †Cretolamna appendiculata
* Restoration of the Late Cretaceous shark Cretoxyrhina, or the Ginsu shark †Cretoxyrhina
** †Cretoxyrhina mantelli
* Ctenochelys
* Cucullaea
* †Cycadeoidea
* †Dakotasuchus – type locality for genus
** †Dakotasuchus kingi – type locality for species
* †Dawndraco – type locality for genus
** †Dawndraco kanzai – type locality for species
* †Desmatochelys
* †Discoscaphites
* †Dolichorhynchops – type locality for genus
** †Dolichorhynchops osborni – type locality for species
* †Durania
* †Ectenosaurus
** †Ectenosaurus clidastoides
* Life restoration of the Late Cretaceous plesiosaur Elasmosaurus with an anachronistic human to scale †Elasmosaurus – type locality for genus
** †Elasmosaurus nobilis – type locality for species
** †Elasmosaurus platyurus – type locality for species
** †Elasmosaurus sternbergi – type locality for species
* †Enchodus
** †Enchodus gladiolus
** †Enchodus petrosus
* †Euspira
* †Fagus
* †Gegania
* †Gervillia
** †Gervillia mudgeana
** †Gervillia mudgenana
* Restoration of the Late Cretaceous bony fish Gillicus †Gillicus
** †Gillicus arcuatus
* Gleichenia
* †Globidens
* †Gryphaea
** †Gryphaea corrugata
** †Gryphaea hilli
** †Gryphaea mucronata
** †Gryphaea navia
* †Halisaurus
** †Halisaurus sternbergi – type locality for species
* Life restoration of the Late Cretaceous toothed bird Hesperornis †Hesperornis – type locality for genus
** †Hesperornis crassipes – type locality for species
** †Hesperornis gracilis – type locality for species
** †Hesperornis regalis – type locality for species
* †Heteroceras
* †Hierosaurus – type locality for genus
* †Hoploscaphites
** †Hoploscaphites nicolletii
* †Iaceornis
** †Iaceornis marshi – type locality for species
* †Ichthyornis – type locality for genus
** †Ichthyornis dispar – type locality for species
* Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size †Inoceramus
** †Inoceramus cuvieri
** †Inoceramus ginterensis
** †Inoceramus tenuistriatus – tentative report
* †Ischyrhiza
** †Ischyrhiza mira
* †Jeletzkytes
** †Jeletzkytes nodosus
* †Leiosphaeridia
* †Leptostyrax
* †Linearis
* †Lingula
* Linuparus
* Lopha
* †Magnoavipes
* Marsilea
* †Mathilda
* Fossilized skull of the Late Cretaceous plesiosaur Megacephalosaurus †Megacephalosaurus – type locality for genus
** †Megacephalosaurus eulerti – type locality for species
* Membranipora
* †Modiolus
* †Niobrarasaurus
** †Niobrarasaurus coleii – type locality for species
* †Niobrarateuthis
** †Niobrarateuthis bonneri – type locality for species
** †Niobrarateuthis walkeri – type locality for species
* Nucula
* Restoration of the Late Cretaceous pterosaur Nyctosaurus †Nyctosaurus
** †Nyctosaurus bonneri – type locality for species
** †Nyctosaurus gracilis – type locality for species
** †Nyctosaurus nanus – type locality for species
* †Ogmodirus – type locality for genus
* Ostrea
* †Pachyrhizodus
** †Pachyrhizodus caninus – or unidentified comparable form
** †Pachyrhizodus minimus
* †Parahesperornis – type locality for genus
** †Parahesperornis alexi – type locality for species
* †Pecten
* Pholadomya
* Pinus
* †Placenticeras
** †Placenticeras meeki
* Platanus
* Restoration of the Late Cretaceous mosasaur Platecarpus †Platecarpus
** †Platecarpus planifrons – type locality for species
** †Platecarpus tympaniticus
* †Platyceramus
** †Platyceramus platinus
* †Platypterygius – or unidentified comparable form
* †Plesiochelys
* †Plesiosaurus
* Plicatula
* Life restoration of the Late Cretaceous polycotylid plesiosaur Polycotylus giving birth †Polycotylus – type locality for genus
** †Polycotylus latipinnis – type locality for species
* †Prisca – tentative report
* †Protocardia
* †Protosphyraena
** †Protosphyraena tenuis
* †Protostega
* †Pseudoperna
** †Pseudoperna congesta
* Life restoration of the Late Cretaceous pterosaur Pteranodon †Pteranodon – type locality for genus
** †Pteranodon comptus – type locality for species
** †Pteranodon longiceps – type locality for species
** †Pteranodon sternbergi – type locality for species
* †Pteria
* †Pterotrigonia
* †Ptychodus
** †Ptychodus anonymus – or unidentified comparable form
** †Ptychodus decurrens
** †Ptychodus mortoni
** †Ptychodus occidentalis
** †Ptychodus whipplei
* †Ptychotrygon
** †Ptychotrygon triangularis
* Quercus
* †Repichnia
* Rhinobatos
** †Rhinobatos incertus
* †Rhizocorallium
* Sassafras
* Restoration of several of the Early Cretaceous-Miocene shark Scapanorhynchus †Scapanorhynchus
** †Scapanorhynchus rhaphiodon
* †Scaphites
* †Scolicia
* Scyliorhinus
* †Selmasaurus
** †Selmasaurus johnsoni – type locality for species
* †Sequoia
* Serpula
* †Silvisaurus – type locality for genus
** †Silvisaurus condrayi – type locality for species
* Squalicorax
** †Squalicorax curvatus
** †Squalicorax falcatus
** †Squalicorax kaupi
** †Squalicorax pristodontus – or unidentified comparable form
** †Squalicorax volgensis
* Sterculia
* Animated life restoration of the Late Cretaceous plesiosaur Styxosaurus †Styxosaurus – type locality for genus
** †Styxosaurus snowii – type locality for species
* Tellina
* †Terminonaris
* †Toxochelys
** †Toxochelys latiremis
* Trachycardium
* †Tragodesmoceras
* †Trinacromerum – type locality for genus
** †Trinacromerum bentonianum – type locality for species
* Turritella
* Restoration of the Late Cretaceous mosasaur Tylosaurus †Tylosaurus
** †Tylosaurus dyspelor
** †Tylosaurus kansasensis – type locality for species
** †Tylosaurus proriger
* †Uintacrinus
** †Uintacrinus socialis
* †Urenchelys
* Fish in a fish specimen †Xiphactinus
** †Xiphactinus audax
* Yoldia

## Cenozoic
### Selected Cenozoic taxa of Kansas

* Acris
** †Acris crepitans
* †Adelphailurus
* Fossilized skull of the Miocene bone-crushing dog Aelurodon †Aelurodon
* Agkistrodon
* †Agriocharis
* †Agriotherium
* †Alforjas
* †Allogona
** †Allogona profunda
* †Ambystoma
** †Ambystoma maculatum
** †Ambystoma tigrinum
* Life restoration of the Miocene elephant relative Amebelodon. Margret Flinsch (1932). †Amebelodon
* Amia
** †Amia calva
* †Amphimachairodus
* Anas
** †Anas crecca
* †Aphelops
* Aplodinotus
** †Aplodinotus grunniens – or unidentified comparable form
* †Arctodus
** †Arctodus pristinus – or unidentified comparable form
** †Arctodus simus
* †Astrohippus
* Baiomys
* †Barbourofelis
* Bassariscus
* Bison
** †Bison antiquus – type locality for species
** †Bison bison
** Mounted fossilized skeleton of the Pleistocene Bison latifrons, also known as the giant bison or long-horned bison †Bison latifrons
* Blarina
** †Blarina brevicauda
** †Blarina carolinensis
* †Borophagus
** †Borophagus diversidens
** †Borophagus hilli
** †Borophagus pugnator
** †Borophagus secundus – type locality for species
* Botaurus
* Bufo
** †Bufo cognatus
** †Bufo hemiophrys
** †Bufo marinus
** †Bufo woodhousei
* †Calippus
* Life restoration of the Pliocene-Holocene camel Camelops †Camelops
* Candona
* Canis
** †Canis armbrusteri
** †Canis dirus
** †Canis edwardii
** †Canis ferox
** †Canis latrans
** †Canis lepophagus
* †Capromeryx
* †Carpocyon
* Carychium
** †Carychium exiguum
* Castor
** †Castor canadensis
* †Castoroides
** †Castoroides ohioensis – or unidentified comparable form
* †Catostomus
** †Catostomus commersoni
* Celtis
* Life restoration of the Miocene-Pleistocene horned gopher Ceratogaulus. Robert Bruce Horsfall (1913). †Ceratogaulus
** †Ceratogaulus hatcheri
** †Ceratogaulus minor
* †Cervalces
** †Cervalces scotti
* Cervus
** †Cervus elaphus
* Chaetodipus
** †Chaetodipus hispidus
* Chara
* †Chasmaporthetes
* Chelydra
** A living Chelydra serpentina, or common snapping turtle †Chelydra serpentina
* Chrysemys
** †Chrysemys picta
* †Cionella
** †Cionella lubrica
* Clethrionomys
** †Clethrionomys gapperi
* Cnemidophorus
** †Cnemidophorus sexlineatus
* Coluber
** †Coluber constrictor
* Fossilized skull of the Miocene pronghorn Cosoryx †Cosoryx
** †Cosoryx furcatus
* Crotalus
** †Crotalus viridis
* †Cryptantha
* Cryptotis
** †Cryptotis parva
* Cynomys
** †Cynomys gunnisoni – or unidentified comparable form
** †Cynomys ludovicianus
* Deroceras
* Diadophis
** †Diadophis punctatus
* Mounted fossilized skeleton of the Miocene-Pliocene horse Dinohippus †Dinohippus
* Dipodomys
** †Dipodomys ordii – or unidentified comparable form
* †Dipoides
* Discus
* Egretta
* Elaphe – type locality for genus
** †Elaphe obsoleta
** †Elaphe vulpina
* Emydoidea
* †Epicyon
** †Epicyon haydeni
* Equus
** †Equus conversidens
** †Equus francisci
** †Equus giganteus – or unidentified comparable form
** †Equus niobrarensis
** †Equus scotti
** Fossilized skeleton of the Pliocene-Pleistocene horse Equus simplicidens, also known as the Hagerman horse or American zebra †Equus simplicidens
* †Eucastor
* †Euconulus
** †Euconulus fulvus
* †Eucyon
** †Eucyon davisi
* Eumeces
** †Eumeces fasciatus
** †Eumeces obsoletus
** †Eumeces septentrionalis
* Felis
* Ferrissia
* †Fundulus
* Gastrocopta
** †Gastrocopta armifera
* Geochelone
* Geomys
** †Geomys bursarius
* Gerrhonotus
* †Gigantocamelus
* †Gnathabelodon
* Mounted fossilized skeleton of the Miocene-Pleistocene elephant relative Gomphotherium †Gomphotherium
* Gopherus
* Graptemys
** †Graptemys geographica
* Grus
** †Grus americana
* Gyraulus
** †Gyraulus parvus
* Hawaiia
** †Hawaiia minuscula
* Helicodiscus
** †Helicodiscus parallelus
* Helisoma
** †Helisoma anceps
** †Helisoma trivolvis
* Fossilized lower jaw of the Miocene-Pleistocene llama relative Hemiauchenia †Hemiauchenia
** †Hemiauchenia macrocephala
* †Hesperotestudo
* Heterodon
** †Heterodon nasicus
** †Heterodon platyrhinos
* †Hipparion
* †Hippotherium
* Holbrookia
** †Holbrookia maculata
* Life restoration of the Pleistocene armadillo relative Holmesina with a human to scale †Holmesina
* Homo
** †Homo sapiens
* †Homotherium
** †Homotherium serum
* Hyla
** †Hyla cinerea – or unidentified comparable form
** †Hyla gratiosa – or unidentified comparable form
** †Hyla squirella – or unidentified comparable form
** †Hyla versicolor
* Life restoration of the Miocene horse Hypohippus. Heinrich Harder (1920). †Hypohippus
* †Hypolagus
* Ictalurus
** †Ictalurus melas
** †Ictalurus punctatus
* †Ictiobus
* †Ischyrocyon – tentative report
* Kinosternon
** †Kinosternon flavescens
** †Kinosternon subrubrum
* A living Lampropeltis getula, or eastern kingsnake Lampropeltis
** †Lampropeltis calligaster
** †Lampropeltis getulus
* Lasiurus
** †Lasiurus cinereus
* Lepisosteus
** †Lepisosteus osseus
** †Lepisosteus platostomus – tentative report
* Lepomis
** †Lepomis cyanellus
** †Lepomis humilis – or unidentified comparable form
* Illustration of a fossilized skull of the Oligocene-Miocene dog Leptocyon †Leptocyon
* Lepus
** †Lepus californicus – or unidentified comparable form
* †Longirostromeryx
* Lontra
** †Lontra canadensis
* Lymnaea
* Lynx
* †Machairodus
* Macrochelys
** †Macrochelys temminckii
* †Mammut
** †Mammut americanum
* †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
* †Megalonyx
** †Megalonyx jeffersonii
** †Megalonyx leptostomus
* †Megantereon
* †Megatylopus
* †Menetus
* Mephitis
** †Mephitis mephitis – tentative report
* †Merychyus
* Micropterus
** †Micropterus punctulatus – or unidentified comparable form
* Microtus
** †Microtus ochrogaster
** †Microtus pennsylvanicus
* †Minytrema – tentative report
* Musculium
** †Musculium transversum
* Mustela
** †Mustela richardsonii – or unidentified comparable form
* †Mylagaulus
* Fossilized skeleton of the Pliocene-Holocene peccary Mylohyus †Mylohyus
** †Mylohyus fossilis
* Myotis
* †Nannippus
* †Nassella
* Neofiber
* Neogale
** †Neogale frenata – or unidentified comparable form
** †Neogale vison
* †Neohipparion
* Neotoma
** †Neotoma floridana – or unidentified comparable form
** †Neotoma micropus
* Nerodia
** †Nerodia sipedon
* Nesovitrea
* †Nimravides
* Life restoration of the Pleistocene ground sloth Nothrotheriops †Nothrotheriops
* Notiosorex
** †Notiosorex crawfordi
* †Notropis – tentative report
* Odocoileus
* Ondatra
** †Ondatra zibethicus
* Onychomys
** †Onychomys leucogaster – or unidentified comparable form
* Ophisaurus
** †Ophisaurus attenuatus
* Ortalis
* Oryzomys
** †Oryzomys palustris
* †Panicum
** †Panicum elegans
* Panthera
** †Panthera leo
* Fossilized skeleton of the Pliocene-Pleistocene ground sloth Paramylodon †Paramylodon
** †Paramylodon harlani
* †Pediomeryx
* †Peraceras
* Perca
** †Perca flavescens
* Perognathus
* Peromyscus
* Phenacomys
** †Phenacomys intermedius – or unidentified comparable form
* Phrynosoma
** †Phrynosoma cornutum
* Physa
* Pisidium
* Pituophis
** †Pituophis catenifer
** †Pituophis melanoleucus
* Mounted fossilized skeleton of the Miocene elephant relative Platybelodon †Platybelodon
* †Platygonus
** †Platygonus compressus – or unidentified comparable form
* Plegadis – or unidentified comparable form
* †Pleiolama
* †Plesiogulo
* †Pliohippus
* †Pomoxis
* †Potamocypris
* †Pratifelis
** †Pratifelis martini – type locality for species
* †Procamelus
* †Procastoroides
* Procyon
** †Procyon lotor
* Fossilized skeleton of the Miocene horse Protohippus †Protohippus
* †Protolabis
* Pseudacris
** †Pseudacris triseriata
* Pseudemys
* †Pseudhipparion
* Puma
** †Puma concolor
* Pupilla
* Pupoides
* Life restoration of the Miocene-Pliocene pronghorn Ramoceros and Cosoryx. Robert Bruce Horsfall (1913). †Ramoceros
* †Rana
** †Rana areolata – or unidentified comparable form
** †Rana catesbeiana
** †Rana pipiens
* †Rana areolata – or unidentified comparable form
** †Rana catesbeiana
** †Rana pipiens
* †Regina
* Reithrodontomys
** †Reithrodontomys humulis
** †Reithrodontomys megalotis
** †Reithrodontomys montanus – or unidentified comparable form
* Rhinocheilus – tentative report
** †Rhinocheilus lecontei
* Restoration of the Miocene-Pliocene elephant relative Rhynchotherium †Rhynchotherium
* †Satherium
** †Satherium piscinarium
* Scalopus
** †Scalopus aquaticus
* Scaphiopus
* Sceloporus
** †Sceloporus undulatus
* †Semotilus
** †Semotilus atromaculatus – or unidentified comparable form
* Sigmodon
* Sistrurus
** †Sistrurus catenatus
* Life restoration of the Pleistocene-Holocene saber-tooth cat Smilodon †Smilodon
* †Soergelia
** †Soergelia mayfieldi – or unidentified comparable form
* Sorex
** †Sorex arcticus
** †Sorex cinereus
** †Sorex palustris
* Spea
** †Spea bombifrons
* Spermophilus
** †Spermophilus franklinii – or unidentified comparable form
** †Spermophilus richardsonii
** †Spermophilus tridecemlineatus
* Sphaerium
* Spilogale
** †Spilogale putorius
* Stagnicola
* Mounted fossilized skeleton of the Pliocene-Pleistocene elephant relative Stegomastodon †Stegomastodon
** †Stegomastodon mirificus
* †Stenotrema
* Sternotherus
** †Sternotherus odoratus
* Storeria
** †Storeria dekayi – or unidentified comparable form
* Succinea
** †Succinea ovalis
* Sylvilagus
** †Sylvilagus floridanus
* Synaptomys
* Tapirus
** †Tapirus veroensis
* Taxidea
** †Taxidea taxus
* Mounted fossilized skeleton of the Miocene-Pliocene rhinoceros Teleoceras †Teleoceras
* Terrapene
** †Terrapene carolina
* Thamnophis
** †Thamnophis proximus
** †Thamnophis radix
** †Thamnophis saurita – or unidentified comparable form
** †Thamnophis sirtalis
* Thomomys
** †Thomomys talpoides
* Trachemys
** A living Trachemys scripta, or pond slider †Trachemys scripta
* †Trigonictis
** †Trigonictis macrodon
* Trionyx
* Tropidoclonion
** †Tropidoclonion lineatum
* Tympanuchus – or unidentified comparable form
* Urocyon
** †Urocyon cinereoargenteus
** †Urocyon progressus
* †Ustatochoerus
* Vallonia
** †Vallonia gracilicosta
** †Vallonia pulchella
* Valvata
** †Valvata tricarinata
* Vertigo
** †Vertigo ovata
* Vulpes
** A living Vulpes velox, or swift fox †Vulpes velox
* Zapus
** †Zapus hudsonius
* Zonitoides
** †Zonitoides arboreus
** †Zonitoides nitidus