List of the prehistoric life of Illinois

The Paleobiology Database records no known occurrences of Precambrian fossils in Illinois. ==Paleozoic==

Selected Paleozoic taxa of Illinois • †Achatella • †Actinoceras • †Alethopteris • †Alethopteris decurrens • †Alethopteris lonchitica • †Alethopteris owenii • †Alethopteris serlii • †Amphibamus'' – type locality for genus • †Amphibamus grandiceps – type locality for species • †Amphiscapha • †Amynilyspes – type locality for genus • †Annularia • †Annularia asteris – or unidentified comparable form • †Annularia stellata • †Anomphalus – type locality for genus • †Anthracoceras • †Archaeocidaris – tentative report • †Archaeopteris • †Archimedes • †Archimedes communis • †Archimedes compactus • †Archimedes invaginatus • †Archimedes lativolvis • †Archimedes macfarlani • †Archimedes swallovanus • †Archimedes terebriformis • †Archimylacris • †Arctinurus • . Charles Emerson Beecher (1889). †Arthrolycosa'' – type locality for genus • †Artisia • †Asterotheca • †Asterotheca miltoni – or unidentified comparable form • †Asyncritus – type locality for genus • †Athyris • †Atrypa • †Atrypa reticularis – report made of unidentified related form or using admittedly obsolete nomenclature • †Aviculopecten • †Aviculopecten fasciculatus • † Avonia • †Bandringa – type locality for genus • †Bassleroceras • †Bellerophon • †Bellerophon spergensis • †Belinurus • †Bembexia • †Blattoidea • †Brachydectes'' • †Brachydectes newberryi • †Bumastus • †Bumastus armatus – or unidentified comparable form • †Bumastus chicagoensis • †Bumastus cuniculus – or unidentified comparable form • †Bumastus graftonensis • †Bumastus insignis • †Bumastus springfieldensis • †Bumastus transversalis • †Calamites • †Calamites suckowii • †Callipteridium • †Calvinia • †Calymene • †Calymene breviceps • †Calymene celebra • †Calyptaulax • †Camarotoechia • †Caseodus'' • †Cephalerpeton – type locality for genus • †Cephalerpeton ventriarmatum – type locality for species • †Ceratiocaris • †Ceratocephala • †Ceraurinella • †Ceraurinus • †Ceraurus • †Cheirurus • †Chonetes • †Chonetes ornatus • †Cleiothyridina • †Cleiothyridina atrypoides • †Cleiothyridina sublamellosa • †Clepsydrops – type locality for genus • †Cliftonia • †Coelacanthus'' • †Composita • †Composita subtilita • †Composita trinuclea • †Conocardium • †Cooperoceras • †Cordaicarpus • †Cordaites • †Cordaites principalis • †Cornulites • †Crania • †Craniops • †Cricotus'' – type locality for genus • †Crotalocrinites • †Ctenacanthus • †Ctenacanthus buttersi – type locality for species • †Curriella – tentative report • †Cyathocrinites • †Cyclonema • †Cyclus • †Cyphaspis • †Cyrtoceras • †Dalmanites • †Deiphon • †Dicoelosia • †Dictyonema • †Dimerocrinites • †Dimerocrinites occidentalis • †Diplocaulus'' – type locality for genus • †Domatoceras • †Echinaria • †Edestus • †Edmondia • †Elonichthys • †Encrinurus • †Eodictyonella • †Eophacops • †Eophacops handwerki • †Eospirifer • †Eospirifer radiatus • †Erratencrinurus • †Eucalyptocrinites • †Eucalyptocrinites crassus • †Euomphalus • †Euomphalus planodorsatus • †Euphoberia'' – type locality for genus • †Euphoberia armigera – type locality for species • †Favosites • †Fenestella • †Fletcheria • †Gerarus – type locality for genus • †Glikmanius • †Glikmanius occidentalis • †Glyptambon • †Glyptopleura • †Gondolella • †Graeophonus • †Graeophonus scudderi – type locality for species • †Greenops • †Greererpeton'' • †Hallopora – tentative report • †Halysites • †Harpidium • †Helenodora – type locality for genus • †Helenodora inopinata – type locality for species • †Heliomeroides • †Holia • †Hyolithes • †Ilyodes • †Isodectes • . †Isotelus'' • †Isotelus gigas • †Isotelus maximus • †Kionoceras • †Latzelia – type locality for genus • †Latzelia primordialis – type locality for species • †Lepidodendron • †Lepidodendron aculeatum • †Lepidophyllum • †Lepidostrobus • †Lichas • †Lingula • †Liroceras • Lithophaga – tentative report • showing speculative egg-coiling behavior †Lysorophus'' – type locality for genus • †Marsupiocrinus • †Meristina • †Metacoceras • †Milosaurus – type locality for genus • †Monograptus • †Monograptus dubius • †Murchisonia • †Naticopsis • †Naticopsis carleyana • †Naticopsis planifrons • †Naticopsis waterlooensis – type locality for species • †Nemastomoides – type locality for genus • †Neospirifer • †Neospirifer dunbari • †Neospirifer triplicatus • †Neuropteris'' • †Neuropteris ovata • †Neuropteris rarinervis • †Neuropteris scheuchzeri • †Neuropteris tenuifolia • †Nodonema • Nucula • †Nuculoidea – tentative report • †Onychopterella – tentative report • †Palenarthrus – type locality for genus • †Palenarthrus impressus – type locality for species • †Paraisobuthus • †Pecopteris • †Pecopteris plumosa • †Pentremites • †Pentremites tulipaformis • †Periechocrinus • †Phacops • . †Phlegethontia'' • †Phlegethontia longissima – type locality for species • †Phragmolites • †Platyceras • †Platysomus • †Platystrophia • †Plicochonetes • †Polysentor – type locality for genus • †Priapulites – type locality for genus • †Priapulites konecniorum – type locality for species • †Prodentalium • †Proetus • and Titanophasma †Protophasma'' • †Protopilio • †Pseudophlegethontia – type locality for genus • †Pseudophlegethontia turnbullorum – type locality for species • †Pterochiton • †Pterotheca • †Rasstriga – type locality for genus • †Rasstriga americana – type locality for species • †Remopleurides • †Rhodea • †Rhynchonella • †Saccoglossus • †Sagenodus • †Samaropsis • †Savagella • †Scepasma – type locality for genus • †Sigillaria'' • †Silphion – type locality for genus • † Simplicius • †Skenidioides • Solemya • †Solenochilus • †Sphaerexochus • †Sphaerocoryphe • †Sphenophyllum • †Sphenophyllum cuneifolium • †Sphenophyllum emarginatum • †Sphenophyllum longifolium – or unidentified comparable form • †Sphenopteris • †Stearoceras • †Stethacanthus • †Stethacanthus altonensis • †Stigmaria • †Strophomena • †Symmorium – type locality for genus • †Syringopora • †Tainoceras • †Tentaculites • †Tranodis • , or the Tully monster †Tullimonstrum'' – type locality for genus • †Wilkingia • †Worthenia • †Xyloiulus • Yoldia ==Mesozoic==

The Paleobiology Database records no known occurrences of Mesozoic fossils in Illinois. ==Cenozoic==

• Agabus • †Agabus praelugens – type locality for species • †Agabus savagei – type locality for species • †Anomodon – type locality for genus • †Anomodon snyderi – type locality for species • †Araloselachus • †Araloselachus cuspidata • Arvicola • †Bananogmius • †Bananogmius crieleyi – or unidentified comparable form • Bison • , or ancient bison †Bison antiquus'' • †Bison bison • Blarina • †Bootherium • †Bootherium bombifrons • Carabus • †Carabus maeander • Castor • †Castor canadensis • †Castoroides • †Castoroides ohioensis • †Cervalces • †Cervalces latifrons – tentative report • , or stag-moose †Cervalces scotti'' • Chelonia • Chlaenius • †Chlaenius plicatipennis – type locality for species • Conopeum • †Conopeum damicornis • Donacia • †Donacia stirioides – type locality for species • Equus • Esox • †Euceratherium • †Euceratherium collinum • Geomys • †Geomys bursarius • †Ischyodus • †Ischyodus williamsae • Lasiopodomys • †Lasiopodomys deceitensis • †Mammut • †Mammut americanum • †Mammuthus • , or wooly mammoths †Mammuthus primigenius'' • Marmota • †Marmota monax • †Megalonyx • †Megalonyx jeffersonii • Mesalia • †Mesalia alabamiensis • Microtus • †Microtus paroperarius • Natica • †Natica reversa • Olophrum • †Olophrum henryi – type locality for species • Ostrea • †Ostrea pulaskensis • †Pachyrhizodus • †Pachyrhizodus caninus • Patrobus • †Patrobus henshawi – type locality for species • Peromyscus • Pitar – tentative report • †Pitar ripleyanus • Pituophis • of the genus Platygonus. Charles R. Knight (1922). †Platygonus – type locality for genus • †Platygonus compressus – type locality for species • †Platygonus cumberlandensis – tentative report • Platynus • †Platynus calvini – type locality for species • †Platynus pleistocenicus – type locality for species • †Platynus subgelidus – type locality for species • Procyon • †Procyon lotor – type locality for species • †Propenser • †Propenser hewletti • †Ptychodus • Rangifer • , or reindeer †Rangifer tarandus'' • †Sangamona • †Sangamona fugitiva • Sorex • †Strepsidura • †Strepsidura contorea • Sylvilagus • †Sylvilagus floridanus • Ursus • †Ursus americanus • Venericardia • †Venericardia smithii ==References==