# List of the prehistoric life of Connecticut

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

## Precambrian-Paleozoic

The Paleobiology Database records no known occurrences of Precambrian or Paleozoic fossils in Connecticut.

## Mesozoic

* †Acanthichnus
** †Acanthichnus cursorius
* †Anchisauripus
** †Anchisauripus exsertus
** †Anchisauripus giganteus – type locality for species
** †Anchisauripus hitchcocki
** †Anchisauripus parallelus
** †Anchisauripus sillimani
** †Anchisauripus tuberosus
* Restoration of the Early Jurassic sauropodomorph dinosaur Anchisaurus †Anchisaurus
** †Anchisaurus polyzelus – type locality for species
* †Ancyropus – type locality for genus
** †Ancyropus heteroclitus – type locality for species
* †Anomoepus
** †Anomoepus curvatus
** †Anomoepus gracillimus
** †Anomoepus intermedius
* †Argoides
** †Argoides macrodactylus – type locality for species
** †Argoides minimus – type locality for species
* †Baiera
* †Batrachopus
** †Batrachopus barrattii
** †Batrachopus deweyi
** †Batrachopus dispar
** †Batrachopus gracilis
* †Belodon
** †Belodon validus – type locality for species
* †Bisulcus
* Botryopera
* †Brontozoum
** †Brontozoum divaricatum
** †Brontozoum giganteum
** †Brontozoum isodactylum
** †Brontozoum sillimanium
* †Cochlichnus
* †Coelophysis
* †Conopsoides
** †Conopsoides larvalis
* †Corvipes
** †Corvipes lacertoideus
* †Cunichoides
** †Cunichoides marsupialoideus – type locality for species
* †Cunicularius
** †Cunicularius retrahens
* †Erpetosuchus
* Fossil Eubrontes tracks. Eubrontes is the Connecticut state fossil. †Eubrontes
** †Eubrontes approximatus
** †Eubrontes dananus – type locality for species
** †Eubrontes divaricatus
** †Eubrontes giganteus
* †Gigandipus
** †Gigandipus caudatus
* †Grallator
** †Grallator cuneatus
** †Grallator cursorius
** †Grallator formosus
** †Grallator magnificus
** †Grallator tenuis
* †Harpedactylus
** †Harpedactylus tenuissimus – type locality for species
* †Herpystezoum
** †Herpystezoum minutus
* †Holcoptera
** †Holcoptera giebeli
* †Hoplichnus
** †Hoplichnus equus
* Life restoration of Hypsognathus. †Hypsognathus
** †Hypsognathus fenneri
* †Isocampe
** †Isocampe strata
* †Loperia
* †Mormolucoides
** †Mormolucoides articulatus
* †Ornithoidichnites
** †Ornithoidichnites gracillior – type locality for species
** †Ornithoidichnites sillimani – type locality for species
* Fossil from Dinosaur State Park and Arboretum of the Late Triassic-Middle Jurassic sauropodomorph dinosaur footprint ichnogenus Otozoum †Otozoum
** †Otozoum moodii
* †Palamopus
** †Palamopus divaricans
* †Platypterna
** †Platypterna deanii – type locality for species
** †Platypterna delicatula – type locality for species
** †Platypterna tenuis – type locality for species
* †Plectropterna
** †Plectropterna gracilis
** †Plectropterna lineans
** †Plectropterna minitans
* †Plectropus
** †Plectropus longipes
* †Plesiornis
* †Redfieldius
** †Redfieldius gracilis
* Fossilized skeleton of the Late Triassic-Early Jurassic bony fish Semionotus †Semionotus
** †Semionotus agassizi
** †Semionotus tenuiceps
* †Sillimanius
** †Sillimanius gracilior – type locality for species
** †Sillimanius tetradactylus – type locality for species
* †Stegomus – type locality for genus
** †Stegomus arcuatus – type locality for species
* †Steropoides
** †Steropoides divaricatus
** †Steropoides diversus
** †Steropoides infelix
** †Steropoides loripes
* †Tarsoplectrus
** †Tarsoplectrus elegans – type locality for species
* †Triaenopus
** †Triaenopus baileyanus – type locality for species
** †Triaenopus lulli – type locality for species
* †Trihamus
** †Trihamus elegans
** †Trihamus magnus
* †Typopus
** †Typopus gracilis – type locality for species

## Cenozoic

The Paleobiology Database records no known occurrences of Cenozoic fossils in Connecticut.