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.

Selected Paleozoic taxa of Wisconsin

 * †Acernaspis
 * †Acidaspis
 * †Actinoceras
 * Aglaspis spinifer.jpg †[[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
 * Calymene celebra.png †[[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
 * Deiphon forbesi cropped.png †[[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
 * FavositesOrdovicianIndiana.jpg †[[Favosites]]
 * †Geisonocerina
 * †Hadromeros
 * †Halysites
 * †Harpidium
 * †Hexameroceras
 * †Holopea
 * †Howella
 * †Hyolithes
 * †Hypseloconus
 * †Illaenus
 * †Inversoceras
 * †Irvingella
 * †Isotelus
 * †Kionoceras
 * †Krausella
 * †Leonaspis
 * †Leurocycloceras
 * †Lingula
 * Lingulella caelata 1.png †[[Lingulella]]
 * †Lonchocephalus
 * †Mackenziurus
 * †Marsupiocrinus
 * †Maryvillia
 * †Matthevia
 * †Meristina
 * †Michelinoceras
 * †Milaculum
 * †Monograptus
 * †Murchisonia
 * †Norwoodia
 * †Obolus
 * †Ophioceras
 * †Ozarkodina
 * †Pelagiella
 * †Pemphigaspis
 * †Pentamerus
 * †Pentlandia
 * Periechecrinidae - Periechocrinus costatus.JPG †[[Periechocrinus]]
 * †Phragmolites
 * †Plaesiomys
 * †Plagiostomoceras
 * †Planolites
 * †Platyceras
 * †Platystrophia
 * †Plectodonta
 * †Pleurodictyum
 * Pleurotomaria
 * †Polygrammoceras
 * †Proetus
 * †Sactorthoceras
 * Saukiidae - Saukiella pepinensis.JPG †[[Saukiella]]
 * †Scutellum
 * †Similodonta
 * †Skenidioides
 * †Skolithos
 * †Sowerbyella
 * †Sphaerexochus
 * †Strophomena
 * †Strophomena costata
 * †Strophomena plattinensis
 * †Subulites
 * †Thalassinoides
 * Thylacares brandonensis S12862-014-0159-2-10.jpg †[[Thylacares]] – type locality for genus
 * †Thylacares brandonensis – type locality for species
 * †Uranoceras
 * †Westonia
 * †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
 * Agathidium mandibulare.jpg [[Agathidium]]
 * Arpedium
 * Asaphidion
 * †Asaphidion yukonense
 * Bembidion
 * †Bembidion grapii
 * †Bembidion mutatum
 * Bledius
 * Byrrhus
 * Calathus
 * †Calathus ingratus
 * Carabus
 * †Carabus taedatus
 * Cercyon
 * †Cercyon herceus
 * Chironomus plumosus01.jpg [[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
 * Ice age fauna of northern Spain - Mauricio Antón cropped.png †[[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
 * Sitona.macularius.-.lindsey.jpg [[Sitona]]
 * Stenus
 * Trechus
 * †Trechus apicalis