# List of the prehistoric life of Wisconsin

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

## Precambrian

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

## Paleozoic
### Selected Paleozoic taxa of Wisconsin

* †Acernaspis
* †Acidaspis
* †Actinoceras
* Restoration of the Cambrian arthropod Aglaspis †Aglaspis
* †Agraulos
* †Amplexopora
* †Amplexus
* †Arctinurus
* †Athyris
* †Atrypa
** †Atrypa reticularis – tentative report
* †Bumastus
** †Bumastus armatus
** †Bumastus cuniculus
** †Bumastus dayi
** †Bumastus ioxus
** †Bumastus niagarensis
** †Bumastus tenuis
* †Calymene
** Fossil of the Silurian trilobite Calymene celebra †Calymene celebra
* †Catenipora
* †Cedaria
* †Ceratocephala
* †Ceraurus
* †Cheirurus
* †Chippewaella – type locality for genus
* †Chondrites
* †Chonetes
* †Conchidium
* †Conocoryphe
* †Coolina
* †Coolinia
* †Coosia
* †Corbina
* †Cornulites
* †Crepicephalus
* †Crotalocrinites
* †Cyathocrinites – tentative report
* †Cycloceras
* †Cypricardinia
* †Dalmanites
* Life restoration of two species of the Silurian trilobite Deiphon †Deiphon
* †Dendrograptus
* †Dicoelosia
* †Dikelocephalus
* †Dimerocrinites
** †Dimerocrinites occidentalis
* †Distomodus
* †Distyrax
* †Dresbachia
* †Echinochiton – type locality for genus
** †Echinochiton dufoei – type locality for species
* †Ellesmeroceras
* †Ellipsocephalus
* †Elrodoceras
* †Encrinurus
* †Entomaspis
* †Eophacops
** †Eophacops handwerki
* †Eospirifer
** †Eospirifer radiatus
* †Eucalyptocrinites
** †Eucalyptocrinites crassus
* Fossil of the Late Ordovician-Permian tabulate coral Favosites †Favosites
* †Geisonocerina
* †Hadromeros
* †Halysites
* †Harpidium
* †Hexameroceras
* †Holopea
* †Howella
* †Hyolithes
* †Hypseloconus
* †Illaenus
* †Inversoceras
* †Irvingella
* †Isotelus
* †Kionoceras
* †Krausella
* †Leonaspis
* †Leurocycloceras
* †Lingula
* Illustration of a fossilized shell of the Cambrian-Late Ordovician brachiopod Lingulella †Lingulella
* †Lonchocephalus
* †Mackenziurus
* †Marsupiocrinus
* †Maryvillia
* †Matthevia
* †Meristina
* †Michelinoceras
* †Milaculum
* †Monograptus
* †Murchisonia
* †Norwoodia
* †Obolus
* †Ophioceras
* †Ozarkodina
* †Pelagiella
* †Pemphigaspis
* †Pentamerus
* †Pentlandia
* Fossil of the Silurian-Carboniferous crinoid ("sea lily") Periechocrinus †Periechocrinus
* †Phragmolites
* †Plaesiomys
* †Plagiostomoceras
* †Planolites
* †Platyceras
* †Platystrophia
* †Plectodonta
* †Pleurodictyum
* Pleurotomaria
* †Polygrammoceras
* †Proetus
* †Sactorthoceras
* Fossil of the Cambrian-Ordovician trilobite Saukiella †Saukiella
* †Scutellum
* †Similodonta
* †Skenidioides
* †Skolithos
* †Sowerbyella
* †Sphaerexochus
* †Strophomena
** †Strophomena costata
** †Strophomena plattinensis
* †Subulites
* †Thalassinoides
* Life restoration of the Silurian arthropod Thylacares †Thylacares – type locality for genus
** †Thylacares brandonensis – type locality for species
* †Uranoceras
* †Westonia
* †Waukeshaaspis
* †Whitfieldia
* †Wurmiella
** †Wurmiella excavata

## Mesozoic

The Paleobiology Database records no known occurrences of Mesozoic fossils in Wisconsin.

## Cenozoic

* Acidota
** †Acidota quadrata
* Aegialia
** †Aegialia lacustris
** †Aegialia terminalis
* Illustration of a living Agathidium round fungus beetle Agathidium
* Arpedium
* Asaphidion
** †Asaphidion yukonense
* Bembidion
** †Bembidion grapii
** †Bembidion mutatum
* Bledius
* Byrrhus
* Calathus
** †Calathus ingratus
* Carabus
** †Carabus taedatus
* Cercyon
** †Cercyon herceus
* A living Chironomus midge Chironomus – or unidentified comparable form
* Conophthorus
** †Conophthorus coniperda – or unidentified comparable form
* Copromyza
* Cryptophagus
* Curimopsis
* Cytilus
* Dyschirius
* Eusphalerum – or unidentified comparable form
* Formica
* Helina – or unidentified comparable form
* †Mammuthus
** Restoration of a herd of Mammuthus primigenius, or wooly mammoths †Mammuthus primigenius
* Mecopeltus – or unidentified comparable form
* Myrmica
* Negastrius
* Notiophilus
** †Notiophilus directus
* Ochthebius
* Olophrum
* Pediacus
** †Pediacus fuscus
* Phloeosinus
** †Phloeosinus pini
* Phloeotribus
** †Phloeotribus piceae
* Pityophthorus
** †Pityophthorus puberulus
* Polygraphus
** †Polygraphus rufipennis
* Pterostichus – or unidentified comparable form
* Quedius
** †Quedius uteanus
* Scolytus
** †Scolytus piceae
* Simplocaria
** †Simplocaria tessellata
* A living Sitona weevil Sitona
* Stenus
* Trechus
** †Trechus apicalis