List of the prehistoric life of Maryland

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

Precambrian

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

Paleozoic

Main article: List of the Paleozoic life of Maryland

Selected Paleozoic taxa of Maryland

• † Amphiscapha
• † Amplexopora
• † Archimylacris
• † Atrypa
  • † Atrypa reticularis – report made of unidentified related form or using admittedly obsolete nomenclature
• † Aviculopecten
• † Bassipterus
• † Bellerophon

• 

  Fossil of the Early Ordovician-Early Devonian trilobite Calymene

  † Calymene
  • † Calymene camerata
  • † Calymene cresapensis
  • † Calymene niagarensis – or unidentified comparable form
• † Camarotoechia
  • † Camarotoechia andrewsi
  • † Camarotoechia litchfieldensis
  • † Camarotoechia tonolowayensis
• † Chonetes
  • † Chonetes novascoticus
• † Cincinnetina
  • † Cincinnetina multisecta
• † Clitendoceras
• † Composita
  • † Composita ovata – tentative report
• † Cornulites
• † Cypricardinia
  • † Cypricardinia elegans
• † Dakeoceras

• 

  Fossil of the Late Ordovician-Middle Devonian trilobite Dalmanites

  † Dalmanites
  • † Dalmanites limulurus
• † Dolichopterus
• † Edmondia
• † Eldredgeops
  • † Eldredgeops rana
• † Ellesmeroceras
• † Encrinurus
• † Eospirifer
• † Erettopterus – tentative report
• † Euomphalus
• † Eurypterus
  • † Eurypterus remipes
• † Favosites
  • † Favosites niagarensis – or unidentified comparable form
• † Flexicalymene
• † Goniatites
• † Gyrodoma
• † Hallopora
• † Holopea
• † Hyolithes
• † Isotelus
• † Lingula

• 

  Life restoration of the Permian snake-like amphibian Lysorophus showing speculative egg-coiling behavior

  † Lysorophus
• † Mcqueenoceras
• † Megamolgophis
• † Meristina
• † Metacoceras
• † Naticopsis
• † Neospirifer
  • † Neospirifer dunbari – tentative report
• † Obolella
• † Obolus – tentative report
• † Olenellus
• † Ormoceras
• † Orthoceras
• † Platyceras
• † Proterocameroceras

• 

  Life restoration of the Silurian-Middle Devonian eurypterid ("sea scorpion") Pterygotus

  † Pterygotus
• † Ribeiria
• † Rioceras
• Solemya
• † Solenopsis
• † Sowerbyella
• † Spirifer
  • † Spirifer vanuxemi
• † Stenosiphon
• † Strophomena
• † Tainoceras

• 

  Assemblage of fossilized shells of the Early Ordovician-Late Devonian probable mollusc Tentaculites

  † Tentaculites
• † Trigonocera
• † Trimerus
• † Waeringopterus
• † Worthenia

Mesozoic

Main article: List of the Mesozoic life of Maryland

Selected Mesozoic taxa of Maryland

• Acirsa

• 

  Life restoration of the Early Cretaceous theropod dinosaur Acrocanthosaurus

  † Acrocanthosaurus – or unidentified comparable form
• † Acteon
• † Aenona
• † Agerostrea
• † Allognathosuchus – or unidentified comparable form
• † Allosaurus
• † Amyda
• † Ancilla
• † Anomia
• † Anomoeodus
• Arrhoges
• Astarte

• 

  Life restoration of the Early Cretaceous sauropod dinosaur Astrodon

  † Astrodon
  • † Astrodon johnstoni – type locality for species
• † Baculites
  • † Baculites baculus
• † Bottosaurus
  • † Bottosaurus harlani
• Botula
  • † Botula conchafodentis
  • † Botula ripleyana
• Cadulus
• Caestocorbula
  • † Caestocorbula crassaplica
  • † Caestocorbula crassiplica
  • † Caestocorbula percompressa
  • † Caestocorbula terramaria
• Carcharias
• † Caveola

• 

  Life restoration of the Late Triassic-Eocene lungfish Ceratodus

  † Ceratodus
• Cerithium
• Chiloscyllium
• † Cimoliasaurus
• † Coelosaurus
  • † Coelosaurus affinis
  • † Coelosaurus antiquus
• † Coelurus
  • † Coelurus gracilis – type locality for species
• † Corax
• Corbula
• † Crenella
  • † Crenella elegantula
  • † Crenella serica

• 

  Fossil of the Early Cretaceous-Eocene shark Cretolamna

  † Cretolamna
  • † Cretolamna appendiculata
• Cucullaea
  • † Cucullaea capax
• Cuspidaria
  • † Cuspidaria ampulla
• Cylichna
  • † Cylichna diversilirata
  • † Cylichna incisa
• † Cylindracanthus
• † Cymella
• Dasyatis

• 

  Life restoration of the Early Cretaceous dromaeosaur ("raptor") Deinonychus

  † Deinonychus
  • † Deinonychus antirrhopus
• † Deinosuchus
  • † Deinosuchus rugosus
• † Dentalium
  • † Dentalium leve
• † Discoscaphites
  • † Discoscaphites conradi
  • † Discoscaphites gulosus
  • † Discoscaphites iris
• † Egertonia
• † Enchodus
  • † Enchodus dirus
• † Eulima
  • † Eulima monmouthensis
• † Euspira

• 

  Illustration in multiple views of a fossilized shell of the Late Jurassic-Miocene nautiloid cephalopod Eutrephoceras

  † Eutrephoceras
• † Ewingia
• † Exogyra
  • † Exogyra costata
• Galeorhinus
• Ginglymostoma
• Glossus
• Glycimeris
• Glycymeris
  • † Glycymeris rotundata
• † Glyptops
• † Goniopholis

• 

  Fossil negative with skin impressions of the theropod dinosaur footprint ichnogenus Grallator

  † Grallator – or unidentified comparable form
• † Halisaurus
  • † Halisaurus platyspondylus
• † Hamatia – type locality for genus
• † Hamulus
• Heterodontus
• † Heteromorpha
• † Hoploparia
• † Hybodus
• † Hyposaurus
  • † Hyposaurus rogersii
• † Inoceramus
• † Ischyodus
• † Ischyrhiza
  • † Ischyrhiza avonicola – or unidentified comparable form
  • † Ischyrhiza mira

• 

  Fossilized shell of the Late Cretaceous ammonoid cephalopod Jeletzkytes

  † Jeletzkytes
  • † Jeletzkytes nebrascensis
• Latiaxis
• Lepisosteus
• Lima
• Limatula
• † Linearis
• Lithophaga
• Lopha
  • † Lopha falcata
  • † Lopha mesenterica
• † Mathilda
• † Modiolus
  • † Modiolus sedesclaris
  • † Modiolus sedesclarus
  • † Modiolus trigonus
• † Morea

• 

  Life restoration of two of the Late Cretaceous Mosasaurus

  † Mosasaurus
  • † Mosasaurus conodon
• Myliobatis
• † Mytilus – tentative report
• Nebrius
• Nucula
  • † Nucula camia
  • † Nucula cuneifrons
  • † Nucula percrassa
  • † Nucula severnensis

• 

  A living Odontaspis sand shark

  Odontaspis
• † Osteopygis
• Panopea
• † Paralbula
• † Peritresius
• Pholas
• † Pinna
• † Placenticeras
• † Pleurocoelus – type locality for genus
  • † Pleurocoelus nanus – type locality for species
• † Plicatoscyllium
• Polinices

• 

  Illustration of a fossilized tooth in multiple views of the Early Cretaceous armored dinosaur Priconodon

  † Priconodon – type locality for genus
  • † Priconodon crassus – type locality for species
• † Prognathodon
  • † Prognathodon rapax
• † Propanoplosaurus – type locality for genus
  • † Propanoplosaurus marylandicus – type locality for species
• † Protocardia
• † Pteria
• † Pterotrigonia
  • † Pterotrigonia eufalensis
  • † Pterotrigonia eufaulensis
  • † Pterotrigonia thoracica
• † Ptychotrygon
• Pycnodonte
  • † Pycnodonte vesicularis
• Raja
• Rhinobatos

• 

  Restoration of the Late Cretaceous-Paleocene ray Rhombodus

  † Rhombodus
• Ringicula
  • † Ringicula clarki
  • † Ringicula pulchella
• Rissoina
• † Sargana
• † Scaphites
  • † Scaphites hippocrepis
• Serpula
• † Serratolamna
  • † Serratolamna serrata
• † Sphenodiscus
  • † Sphenodiscus lobatus
  • † Sphenodiscus pleurisepta

• 

  Life restoration of the Late Cretaceous shark Squalicorax

  Squalicorax
  • † Squalicorax falcatus
  • † Squalicorax kaupi
  • † Squalicorax pristodontus
• Squatina
• † Stephanodus
• Tellina
• † Tenea

• 

  Life restoration of the Early Cretaceous Iguanodon relative Tenontosaurus

  † Tenontosaurus
• † Thoracosaurus
• Trachycardium
  • † Trachycardium eufaulensis
• Turritella
  • † Turritella bilira
  • † Turritella hilgardi
  • † Turritella paravertebroides
  • † Turritella tippana
  • † Turritella trilira
  • † Turritella vertebroides
  • † Zephyrosaurus

Cenozoic

Main article: List of the Cenozoic life of Maryland

Selected Cenozoic taxa of Maryland

• † Abra – tentative report
• Acipenser
• Acropora
  • † Acropora palmata
• Acteocina
• Acteon
• † Adocus

• 

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

  † Aepycamelus – tentative report
• Aetobatus
• † Aglaocetus
• Alca
  • † Alca torda – or unidentified comparable form
• † Ambystoma
  • † Ambystoma maculatum
  • † Ambystoma tigrinum
• Amia

• 

  Life restoration of the Miocene-Pliocene beardog Amphicyon

  † Amphicyon
• Amyda
• Anachis
• Anadara
  • † Anadara ovalis
  • † Anadara transversa
• Anas
  • † Anas crecca
• Ancilla – report made of unidentified related form or using admittedly obsolete nomenclature
• Angulus
• Anomia
  • † Anomia simplex
• Anticlimax – tentative report
• † Aphelops – tentative report
• Aporrhais
• Aquila
  • † Aquila chrysaetos
• † Araeodelphis – type locality for genus
• Arca
• † Archaeohippus
• Architectonica
• † Arctodus
  • † Arctodus pristinus
• Argopecten
  • † Argopecten irradians
• † Armatobalanus

• 

  Shell of a modern Astarte bivalve

  Astarte
  • † Astarte undata
• Asterias
  • † Asterias forbesi – or unidentified comparable form
• Astrangia
  • † Astrangia danae
• † Astroscopus – type locality for species
  • † Astroscopus countermani – type locality for species
• Astyris
  • † Astyris lunata
• Athleta
• Atrina

• 

  Life restoration of the Miocene sperm whale Aulophyseter

  † Aulophyseter
• Balaenoptera
• Balanus
  • † Balanus crenatus
• Bankia
• Barnea
• Blarina
  • † Blarina brevicauda
  • † Blarina carolinensis
• Bonasa

  • 

    A living Bonasa umbellus , or ruffed grouse

    † Bonasa umbellus
• Boreotrophon
• Brachidontes
• † Brachyprotoma
  • † Brachyprotoma obtusata
• † Brevoortia
  • † Brevoortia tyrannus – or unidentified comparable form
• Bufo
  • † Bufo americanus
  • † Bufo woodhousei
• Busycon – type locality for genus
  • † Busycon carica
• Busycotypus
  • † Busycotypus canaliculatus
• Cadulus
• Caecum
• Callinectes
  • † Callinectes ornatus

  • 

    A living Callinectes sapidus , or Chesapeake blue crab

    † Callinectes sapidus
• Calliostoma
• Callista
• Calonectris
• Calyptraea
  • † Calyptraea centralis
• Cancellaria
• Cancer
  • † Cancer irroratus
• Canis

  • 

    Illustration in multiple views of a fossilized skull of the Pleistocene Canis armbrusteri , or Armbruster's wolf

    † Canis armbrusteri – type locality for species
  • † Canis latrans
  • † Canis rufus – or unidentified comparable form
• Cantharus
• Carcharhinus
• Carcharias
• Carcharodon
  • † Carcharodon hastalis
• Cardita
• Carphophis
  • † Carphophis amoenus
• Cassis
• Castor
  • † Castor canadensis
• † Cephalotropis – type locality for genus
• Cerastoderma
• Cervus
• Cetorhinus

• 

  Life restoration of the Miocene-Pliocene whale Cetotherium

  † Cetotherium
• Chama
• Chelone
• Chelydra
  • † Chelydra serpentina
• † Chesapecten
  • † Chesapecten jeffersonius
• Chlamys
• Chrysemys
  • † Chrysemys picta
• Circulus – report made of unidentified related form or using admittedly obsolete nomenclature
• Cirsotrema
• Clavus
• Clementia
• Clethrionomys
  • Clethrionomys gapperi – or unidentified comparable form
• Cliona
• Coluber

  • 

    A living Coluber constrictor , or eastern racer

    † Coluber constrictor
• Concavus
• Condylura
  • † Condylura cristata
• Conus
• Corbula
• Crassostrea
  • † Crassostrea virginica
• Crepidula
  • † Crepidula fornicata
  • † Crepidula plana

• 

  Fossil of the Early Cretaceous-Eocene shark Cretolamna

  † Cretolamna
  • † Cretolamna appendiculata
• Crotalus
  • † Crotalus horridus
• Crucibulum
• Cryptobranchus
• Cucullaea
• Cumingia
• Cyclocardia
• Cylichna
• Cymatosyrinx
• † Cynarctus
  • † Cynarctus wangi – type locality for species

• 

  Multiple views of a shell of a Cypraea cowrie sea snail

  Cypraea
  • † Cyrtopleura costata
• Cythara
• † Cytheris
• Dasyatis
• Dentalium
• Diadophis
  • † Diadophis punctatus
• Diodora
• † Diorocetus – type locality for genus
• † Dipoides
• Discinisca
• † Dolicholatirus
• Dosinia
• Echinocardium
• Echinophoria – type locality for genus
• † Ecphora

  • 

    Illustration of a fossilized shell of the Miocene murex sea snail Ecphora gardnerae

    † Ecphora gardnerae
• † Ectopistes
  • † Ectopistes migratorius
• Elaphe
  • † Elaphe vulpina
• Electra
• Elphidium
• Ensis
  • † Ensis directus
• † Entobia
• † Eosuchus
• † Eosurcula – or unidentified comparable form
• Epitonium
  • † Epitonium humphreysii
• Eptesicus
  • † Eptesicus fuscus – or unidentified comparable form
• Equus
  • † Equus giganteus
• Erethizon
  • † Erethizon dorsatum

• 

  Life restoration of the Pleistocene bovid Euceratherium , or the shrub ox. Robert Bruce Horsfall (1913).

  † Euceratherium
  • † Euceratherium collinum
• † Euclastes – tentative report
• Eulima
• Eumeces
  • † Eumeces fasciatus – or unidentified comparable form
• Eupleura
  • † Eupleura caudata
• † Eurhinodelphis
  • † Eurhinodelphis longirostris
• Euspira
  • † Euspira heros

• 

  A living Felis , or cat

  Felis
• † Ficopsis
• Fissurella
• † Fistulobalanus
• † Fulgar
• Galeocerdo
  • † Galeocerdo aduncus
  • † Galeocerdo contortus
• Galeodea
• Gari
• Gastrochaena
• Gavia
  • † Gavia immer

• 

  Fossilized skull of the Miocene crocodile relative Gavialosuchus

  † Gavialosuchus
• Gegania
• Gemma
  • † Gemma gemma
• Genota – or unidentified comparable form
• Geukensia
  • † Geukensia demissa
• Gibbula – tentative report
• Glaucomys
• Globigerina
• Globigerinoides
• Glossus
• Glycimeris
• Glycymeris
  • † Glycymeris americana
• Glyptemys
  • † Glyptemys muhlenbergii

• 

  Mounted fossilized skeleton of the Miocene-Pleistocene elephant relative Gomphotherium

  † Gomphotherium
• Gulo
  • † Gulo gulo
• Gyrinophilus
  • † Gyrinophilus porphyriticus – or unidentified comparable form
• † Hadrodelphis – type locality for genus
• Haminoea
• Hastula
• Haustator
• † Heliadornis – type locality for genus
• Hemipristis
  • † Hemipristis serra
• Heterodon
  • † Heterodon platyrhinos – or unidentified comparable form
• Hiatella
  • † Hiatella arctica

• 

  Mounted fossilized skeleton of the Miocene-Pliocene horse Hippotherium

  † Hippotherium
• Hyla
  • † Hyla crucifer
• Hyotissa
• Ictalurus
• Ilyanassa
  • † Ilyanassa obsoleta
  • † Ilyanassa trivittata
• Ischadium
  • † Ischadium recurvum
• † Ischyodus
• Isognomon
• Isurus

• 

  Life restoration of the Oligocene-Miocene dolphin Kentriodon

  † Kentriodon – type locality for genus
• Kuphus – report made of unidentified related form or using admittedly obsolete nomenclature
• Kurtziella
  • † Kurtziella cerina
• Lacuna
• † Lagodon
• Lamna
• Lampropeltis
  • † Lampropeltis triangulum
• Lasiopodomys
• Lepisosteus
• † Leptophoca – type locality for genus
  • † Leptophoca lenis – type locality for species
• Lepus
  • † Lepus americanus
• Libinia
  • † Libinia dubia
• Lithophaga – or unidentified comparable form
• Littoraria
  • † Littoraria irrorata
• Lontra

  • 

    Pair of living Lontra canadensis , or North American river otter

    † Lontra canadensis
• † Lophocetus
• Lopholatilus
• Lucina
• Lunatia
• Lyonsia
• Macoma
  • † Macoma balthica
• Macrocallista
• † Macrokentriodon – type locality for genus
• † Mammut
  • † Mammut americanum
• † Mammuthus
  • † Mammuthus columbi

  • 

    Life restorations of a Mammut americanum , or American mastodon (right), and a Mammuthus primigenius , or wooly mammoth (left)

    † Mammuthus primigenius
• Marginella
• Marmota
  • † Marmota monax
• Martesia
• Mathilda
• † Megalonyx
• Megaptera
• Melampus
  • † Melampus bidentatus
• Melanitta
  • † Melanitta deglandi
• Meleagris

  • 

    A wild male Meleagris gallopavo , or turkey, displaying his facial coloration and tail feathers to attract a female

    † Meleagris gallopavo
• Membranipora
• Menestho
• Mephitis
  • † Mephitis mephitis
• Mercenaria
  • † Mercenaria mercenaria
• Meretrix
• † Merychippus
• † Mesocetus
• † Metaxytherium
• Microtus
  • † Microtus chrotorrhinus – or unidentified comparable form
  • † Microtus pennsylvanicus

• 

  Restoration of the Pliocene-Pleistocene Miracinonyx , or American cheetah

  † Miracinonyx
  • † Miracinonyx inexpectatus
• Mitra
• Modiolus
  • † Modiolus modiolus
• † Moira – tentative report
• † Monotherium
• Mulinia
  • † Mulinia lateralis
• Mustela
  • † Mustela vison – or unidentified comparable form
• † Mya
  • † Mya arenaria
• Myliobatis

• 

  Fossilized skeleton of the Pliocene-Holocene peccary Mylohyus

  † Mylohyus
  • † Mylohyus fossilis – type locality for species
• Myotis
  • † Myotis grisescens – or unidentified comparable form
• Mytilus
• † Nanosiren – tentative report
• Napaeozapus
  • † Napaeozapus insignis
• Narona
• Nassa

• 

  A living Nassarius , or nassa mud snail

  Nassarius
  • † Nassarius vibex
• Neofiber
• Neotoma – type locality for genus
  • † Neotoma floridana
• Nerodia
  • † Nerodia sipedon
• Neverita
• Notophthalmus
  • † Notophthalmus viridescens – or unidentified comparable form
• Notorynchus

  • 

    Close-up portrait of a living Notorynchus cepedianus , or broadnose sevengill shark

    † Notorynchus cepedianus – type locality for species
• Novocrania
• Nucula
  • † Nucula proxima
  • † Nuculana acuta
• Ochotona
  • † Ochotona princeps – or unidentified comparable form
• Odocoileus
  • † Odocoileus virginianus
• Odontaspis
• Odostomia
• Ondatra
  • † Ondatra zibethicus
• Opheodrys
  • † Opheodrys vernalis
• † Orycterocetus
• † Osteopygis
• Ostrea
• † Otodus

  • 

    Diagram illustrating the largest (grey) and most conservative (red) size estimates of the Miocene-Pliocene shark Carcharocles megalodon (sometimes Carcharodon or Otodusmegalodon) with a whale shark (violet), great white shark (green), and anachronistic human (black) to scale

    † Otodus megalodon
• Otus
• † Oxyrhina
  • † Oxyrhina desorii
• Pagurus
  • † Pagurus pollicaris
• † Palaeocarcharodon
• † Palaeophis
• Pandora
• Panopea
• Panopeus
  • † Panopeus herbstii
• Panthera
  • † Panthera leo
  • † Panthera onca
• Parascalops
  • † Parascalops breweri

• 

  Life restoration of the Miocene baleen whale Parietobalaena and calf

  † Parietobalaena – type locality for genus
  • † Parietobalaena palmeri – type locality for species
• Pecten
• Pekania
• † Pelocetus – type locality for genus
• Perisoreus
  • † Perisoreus canadensis
• Peromyscus
  • † Peromyscus leucopus – or unidentified comparable form
• Petricola
  • † Petricola pholadiformis
• † Phenacodus – tentative report
• Phenacomys
• † Phocageneus
• Pholadomya
• † Physeterula
• Pinna
• Pipistrellus
• Pitar
  • † Pitar morrhuanus
• Pitymys
• Placopecten

• 

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

  † Platygonus
• Plecotus
• Plethodon
• Pleurotomella
• Pogonias
  • † Pogonias cromis – or unidentified comparable form
• Polydora
• Polystira
• † Presbyornis
• † Prionodon
• Prionotus
  • † Prionotus evolans – or unidentified related form
• Propebela
• Prophaethon – tentative report
• † Protocardia
• Pseudacris
  • † Pseudacris triseriata
• Pseudoliva
• Pteria
• † Ptychosalpinx

• 

  A living Puffinus shearwater

  Puffinus
• Pycnodonte
• Quinqueloculina
• † Rana
  • † Rana clamitans
  • † Rana pipiens
  • † Rana sylvatica
• Rangia
• Ranzania
• Retusa

• 

  A school of living Rhinoptera , or cownose rays

  Rhinoptera
• Rhynchobatus
• † Roccus
  • † Roccus saxatilis
• † Rotalia
• Salamandra
• †Scala – report made of unidentified related form or using admittedly obsolete nomenclature
• †Scala
• † Scaldicetus
• † Scapanorhynchus
• Scaphander
• Scaphella – type locality for genus
• Sceloporus
  • † Sceloporus undulatus – or unidentified comparable form

• 

  Fossilized skull of the Miocene toothed whale Schizodelphis

  † Schizodelphis
• Schizoporella
  • † Schizoporella unicornis
• Sciaenops
• Sciurus
  • † Sciurus carolinensis
• † Scutella
• † Sediliopsis – type locality for genus
• Seila
  • † Seila adamsii
• Semele – tentative report
• Semele
• Serpulorbis
• Siphonalia

• 

  Life restoration of the Pleistocene-Holocene saber-tooth cat Smilodon

  † Smilodon
  • † Smilodon fatalis
• † Solarium
• Solen
• Sorex
  • † Sorex cinereus
  • † Sorex fumeus
• Spermophilus
  • † Spermophilus tridecemlineatus
• † Sphyraenodus
• Sphyrna
• Spilogale
  • † Spilogale putorius – type locality for species
• Spisula

• 

  Life restoration of the Oligocene-Miocene shark-toothed dolphin Squalodon

  † Squalodon
  • † Squalodon calvertensis – type locality for species
• Squatina
• Squilla
  • † Squilla empusa
• Stewartia
• Stramonita
• Strioterebrum
• † Syllomus
• Sylvilagus
  • † Sylvilagus floridanus

• 

  Illustration of a living Synaptomys , or bog lemming

  Synaptomys
  • † Synaptomys cooperi
• Syrnola
• Tagelus
• Tamias
  • † Tamias striatus
• Tamiasciurus
  • † Tamiasciurus hudsonicus
• † Tapiravus

• 

  A living Tapirus , or tapir

  Tapirus
• † Tasbacka
• Taxidea
  • † Taxidea taxus – type locality for species
• Teinostoma
• Tellina
• Terebra
• Terebratula
• Teredo
• Terrapene
  • † Terrapene carolina
• Testudo
• Textularia
• Thamnophis

• 

  Fossilized skeleton of the Oligocene-Miocene gavial relative Thecachampsa

  † Thecachampsa
  • † Thecachampsa antiqua
• Thomomys – type locality for genus
• Thracia
• Tremarctos
  • † Tremarctos floridanus
• Triloculina
• Trionyx – report made of unidentified related form or using admittedly obsolete nomenclature
• Triphora
• Tritonium
• Trochita
• † Trygon
• † Tuba – tentative report
• Turricula – report made of unidentified related form or using admittedly obsolete nomenclature
• Turris – report made of unidentified related form or using admittedly obsolete nomenclature
• Turritella

• 

  A living Tursiops , or bottlenose dolphin

  Tursiops
• Typhis
• Umbraculum – tentative report
• Urosalpinx
  • † Urosalpinx cinerea
• Ursus
  • † Ursus americanus
• Venericardia
• Vespertilio
• Vitrinella
• Volutifusus
• Vulpes

• 

  Fossilized skeleton of the Miocene whale Xiphiacetus

  † Xiphiacetus
• Xiphias
• Yoldia
  • † Yoldia limatula

References

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