List of the prehistoric life of Iowa

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

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

Selected Paleozoic taxa of Iowa

 * †Acidaspis
 * Monobathrida - Actinocrinites.JPG †[[Actinocrinites]]
 * †Actinocrinites gibsoni
 * †Actinocrinites lowei
 * †Agassizodus
 * †Agassizodus variabilis
 * †Aglaocrinus
 * †Amplexus
 * †Anataphrus
 * †Anomphalus
 * †Archaeogastropod
 * †Arctinurus
 * †Athyris
 * †Athyris fultonensis – or unidentified comparable form
 * Atrypa reticularis pedunculate Gondelsheim CRF.jpg]] †Atrypa''
 * †Atrypa reticularis
 * †Atrypa reticularus
 * †Aviculopecten
 * †Bellerophon
 * †Bembexia
 * †Bothriocidaris
 * †Bumastus
 * †Calymene
 * †Camarotoechia
 * †Camarotoechia chouteauensis
 * †Camarotoechia tuta
 * †Cardiola
 * †Catenipora
 * †Ceratocephala
 * †Ceratopsis
 * †Ceraurus
 * †Charactoceras
 * Trilobite Ordovicien 8127.jpg †[[Cheirurus]]
 * †Chomatodus
 * †Chomatodus inconstans
 * †Chonetes
 * †Chonetes glenparkensis
 * †Chonetes illinoisensis
 * †Chonetes logani
 * †Chonetes multicosta
 * †Chonetes ornatus
 * †Cleiothyridina
 * †Cleiothyridina incrassata – or unidentified comparable form
 * †Cleiothyridina sublamellosa
 * †Climacograptus
 * †Coenites
 * Compositafossil.jpg †[[Composita]]
 * †Composita humilis – tentative report
 * †Composita trinuclea
 * †Conocardium
 * †Coolinia
 * †Cornulites
 * †Crania
 * †Crotalocrinites
 * †Curtognathus
 * †Cyathocrinites
 * †Cyclonema
 * †Cyphaspis
 * †Cypricardinia
 * †Cyrtolites
 * Cyrtospirifer verneuili duo.jpg †[[Cyrtospirifer]]
 * †Cyrtospirifer whitneyi
 * †Cystodictya
 * †Dalmanites
 * †Decadocrinus
 * †Deiphon
 * †Deltaherpeton – type locality for genus
 * †Dentalium
 * †Dicoelosia
 * †Dimerocrinites
 * †Diplograptus
 * †Diplograptus modestus – or unidentified comparable form
 * †Discosorus
 * †Earlandia
 * Edestus protopirata1DB.jpg †[[Edestus]]
 * †Edmondia
 * †Eldredgeops
 * †Eldredgeops rana
 * †Ellesmeroceras
 * †Encrinurus
 * †Endoceras
 * Eocaudina
 * †Eodictyonella
 * †Eophacops
 * †Eospirifer
 * †Eospirifer radiatus
 * †Eucalyptocrinites
 * †Euomphalus
 * †Favosites
 * †Fenestella
 * Flexicalymene-ouzregui-rolled.jpg †[[Flexicalymene]]
 * †Goniatites
 * †Gravicalymene
 * †Greenops
 * †Grewingkia
 * †Gyroceras
 * †Hallopora
 * †Halysites
 * †Harpidium
 * †Heliophyllum
 * †Hexagonaria
 * †Hindia
 * †Holopea
 * †Huronia
 * †Hyolithes
 * †Icriodus
 * †Idiognathodus
 * Iniopteryxrushlaui.JPG †[[Iniopteryx]]
 * †Iniopteryx rushlaui
 * †Iocrinus
 * †Isotelus
 * †Kayoceras
 * †Kionoceras
 * †Krausella
 * †Leptopora
 * †Lingula
 * †Manticoceras
 * †Marsupiocrinus
 * Meristella two views.png †[[Meristella]]
 * †Meristina
 * †Michelia
 * †Michelinoceras
 * †Murchisonia
 * †Mycterops
 * †Mystrocephala
 * †Naticopsis
 * †Naticopsis depressa – type locality for species
 * †Neospirifer
 * Nucula
 * †Odontopleura
 * OnychodusDB15.jpg †[[Onychodus]]
 * †Orthoceras
 * †Oulodus
 * †Ozarkodina
 * †Pachyphyllum
 * †Paladin
 * †Palmatolepis
 * †Peachocaris
 * †Pentamerus
 * †Pentremites
 * †Periechocrinus
 * Petalodus ohioensis fossil.jpg †[[Petalodus]]
 * †Phacops
 * †Phillipsia
 * †Pinnocaris
 * †Plaesiomys
 * †Platyceras
 * †Platycrinites
 * †Platystrophia
 * †Plectodonta
 * †Pleurocystites
 * Pleurotomaria – tentative report
 * †Plicochonetes
 * †Poleumita
 * †Polygnathus
 * †Polygnathus parawebbi
 * †Polygnathus xylus
 * †Posidonia
 * †Proetus
 * Ptyctodus compressus cropped.jpg †[[Ptyctodus]]
 * †Rhynchodus
 * †Rigidella
 * †Scutellum
 * †Scytalocrinus
 * †Septemchiton
 * †Sigournea – type locality for genus
 * †Sigournea multidentata – type locality for species
 * †Similodonta
 * †Skenidioides – tentative report
 * †Sowerbyella
 * †Sphenothallus
 * †Spirifer
 * †Spirifer louisianensis
 * †Spiriferina
 * Spirorbis
 * †Spyroceras
 * Steth pair1 cropped.jpg †[[Stethacanthus]]
 * †Streptognathodus
 * †Strophomena
 * †Strophomena costata
 * †Strophomena erratica
 * †Stylonema – tentative report
 * †Syringopora
 * †Taxocrinus
 * †Tranodis
 * †Whatcheeria – type locality for genus
 * †Worthenia
 * †Youngia

Mesozoic

 * †Arcellites
 * †Arcellites crillensis – type locality for species
 * †Arcellites disciformis
 * †Balmeisporites
 * †Balmeisporites auriculata – type locality for species
 * †Chrysotheca
 * †Chrysotheca dakotaensis – type locality for species
 * †Chrysotheca diskoensis
 * †Chrysotheca levis
 * Coptothyris
 * †Coptothyris dakotaensis – type locality for species
 * †Dunveganoceras
 * †Dunveganoceras pondi
 * Inoceramus steenstrup, world's largest fossil mollusk.jpg †[[Inoceramus]]
 * †Inoceramus ginterensis
 * †Inoceramus perfragilis
 * †Inoceramus prefragilis
 * †Metengonoceras
 * †Metengonoceras acutum
 * †Microcarpolithes
 * †Microcarpolithes hexangulata
 * †Minerisporites
 * †Minerisporites mirabilis
 * †Molaspora – type locality for genus
 * †Molaspora lobata
 * †Molaspora rugosa – type locality for species
 * †Perotrilites
 * †Perotrilites bursatus – type locality for species
 * †Perotrilites convolutus – type locality for species
 * †Pilularia
 * †Pilularia globulifera
 * †Regnellidium
 * †Regnellidium diphyllum
 * †Spermatites
 * †Spermatites ellipticus
 * †Spermatites elongatus

Cenozoic

 * Blarina
 * Camelops hesternus Sergiodlarosa.jpg †[[Camelops]]
 * Canis
 * †Canis latrans
 * †Canis lupus
 * Castor
 * †Castor canadensis
 * †Castoroides
 * †Castoroides ohioensis
 * Didelphis
 * Equus
 * †Euceratherium – tentative report
 * †Euceratherium collinum
 * Geomys
 * Lepus
 * Lontra
 * †Lontra canadensis
 * †Mammut
 * †Mammut americanum
 * †Mammuthus
 * MammothVsMastodon.jpg, or American mastodon (right), and a Mammuthus primigenius, or wooly mammoth (left)]] †Mammuthus primigenius''
 * †Megalonyx
 * †Megalonyx jeffersonii
 * Microtus
 * †Microtus paroperarius
 * Mictomys
 * †Mictomys meltoni
 * Odocoileus
 * Ondatra
 * Panthera
 * †Paramylodon
 * †Paramylodon harlani
 * †Platygonus
 * Procyon
 * Rangifer
 * Sciurus
 * Sorex
 * †Sorex dispar – or unidentified comparable form
 * Stegomastodon mirificus - Smithsonian.JPG †[[Stegomastodon]]
 * †Stegomastodon aftoniae – type locality for species
 * Sylvilagus
 * Taxidea
 * †Taxidea taxus
 * Ursus
 * †Ursus americanus
 * Vulpes