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.

Paleozoic

Main article: List of the Paleozoic life of Iowa

Selected Paleozoic taxa of Iowa

• †Acidaspis

• File:Monobathrida - Actinocrinites.JPG

  Fossilized calyx and partial stem of the Devonian-Permian crinoid ("sea lily") Actinocrinites

  †Actinocrinites
  • †Actinocrinites gibsoni
  • †Actinocrinites lowei
• †Agassizodus
  • †Agassizodus variabilis
• †Aglaocrinus
• †Amplexus
• †Anataphrus
• †Anomphalus
• †Archaeogastropod
• †Arctinurus
• †Athyris
  • †Athyris fultonensis – or unidentified comparable form

• File:Atrypa reticularis pedunculate Gondelsheim CRF.jpg

  Fossilized shell of the Silurian-Late Devonian brachiopod Atrypa reticularis

  †Atrypa
  • †Atrypa reticularis
  • †Atrypa reticularus
• †Aviculopecten
• †Bellerophon
• †Bembexia
• †Bothriocidaris
• †Bumastus
• †Calymene
• †Camarotoechia
  • †Camarotoechia chouteauensis
  • †Camarotoechia tuta
• †Cardiola
• †Catenipora
• †Ceratocephala
• †Ceratopsis
• †Ceraurus
• †Charactoceras

• File:Trilobite Ordovicien 8127.jpg

  Fossil of the Cambrian-Middle Devonian trilobite Cheirurus

  †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

• File:Compositafossil.jpg

  Fossilized shell of the Late Devonian-Permian brachiopod Composita

  †Composita
  • †Composita humilis – tentative report
  • †Composita trinuclea
• †Conocardium
• †Coolinia
• †Cornulites
• †Crania
• †Crotalocrinites
• †Curtognathus
• †Cyathocrinites
• †Cyclonema
• †Cyphaspis
• †Cypricardinia
• †Cyrtolites

• File:Cyrtospirifer verneuili duo.jpg

  Fossilized shells of the Middle-Late Devonian brachiopod Cyrtospirifer

  †Cyrtospirifer
  • †Cyrtospirifer whitneyi
• †Cystodictya
• †Dalmanites
• †Decadocrinus
• †Deiphon
• †Deltaherpeton – type locality for genus
• †Dentalium
• †Dicoelosia
• †Dimerocrinites
• †Diplograptus
  • †Diplograptus modestus – or unidentified comparable form
• †Discosorus
• †Earlandia

• File:Edestus protopirata1DB.jpg

  Life restoration of the Late Devonian-Carboniferous Chimaera relative Edestus

  †Edestus
• †Edmondia
• †Eldredgeops
  • †Eldredgeops rana
• †Ellesmeroceras
• †Encrinurus
• †Endoceras
• Eocaudina
• †Eodictyonella
• †Eophacops
• †Eospirifer
  • †Eospirifer radiatus
• †Eucalyptocrinites
• †Euomphalus
• †Favosites
• †Fenestella

• File:Flexicalymene-ouzregui-rolled.jpg

  Front (left) and right side (right) views of an enrolled fossil of the Middle Ordovician-Silurian trilobite Flexicalymene

  †Flexicalymene
• †Goniatites
• †Gravicalymene
• †Greenops
• †Grewingkia
• †Gyroceras
• †Hallopora
• †Halysites
• †Harpidium
• †Heliophyllum
• †Hexagonaria
• †Hindia
• †Holopea
• †Huronia
• †Hyolithes
• †Icriodus
• †Idiognathodus

• File:Iniopteryxrushlaui.JPG

  Life restoration of the Carboniferous Chimaera relative Iniopteryx

  †Iniopteryx
  • †Iniopteryx rushlaui
• †Iocrinus
• †Isotelus
• †Kayoceras
• †Kionoceras
• †Krausella
• †Leptopora
• †Lingula
• †Manticoceras
• †Marsupiocrinus

• File:Meristella two views.png

  Illustration (lower right, entry 15) of a fossilized shell in front and side views of the Silurian-Late Devonian brachiopod Meristella

  †Meristella
• †Meristina
• †Michelia
• †Michelinoceras
• †Murchisonia
• †Mycterops
• †Mystrocephala
• †Naticopsis
  • †Naticopsis depressa – type locality for species
• †Neospirifer
• Nucula
• †Odontopleura

• File:OnychodusDB15.jpg

  Life restoration of the Middle-Late Devonian lobe-finned fish Onychodus

  †Onychodus
• †Orthoceras
• †Oulodus
• †Ozarkodina
• †Pachyphyllum
• †Paladin
• †Palmatolepis
• †Peachocaris
• †Pentamerus
• †Pentremites
• †Periechocrinus

• File:Petalodus ohioensis fossil.jpg

  Fossilized tooth of the Carboniferous-Permian shark Petalodus

  †Petalodus
• †Phacops
• †Phillipsia
• †Pinnocaris
• †Plaesiomys
• †Platyceras
• †Platycrinites
• †Platystrophia
• †Plectodonta
• †Pleurocystites
• Pleurotomaria – tentative report
• †Plicochonetes
• †Poleumita
• †Polygnathus
  • †Polygnathus parawebbi
  • †Polygnathus xylus
• †Posidonia
• †Proetus

• File:Ptyctodus compressus cropped.jpg

  Life restoration of the Late Devonian placoderm fish Ptyctodus

  †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

• File:Steth pair1 cropped.jpg

  Life restorations of a male (foreground) and female (background) of the Late Devonian-Carboniferous Chimaera relative Stethacanthus

  †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

• File:Inoceramus steenstrup, world's largest fossil mollusk.jpg

  Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size

  †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

• File:Camelops hesternus Sergiodlarosa.jpg

  Life restoration of the Pliocene-Holocene camel Camelops

  †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

  • File:MammothVsMastodon.jpg

    Life restorations of a Mammut americanum, 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

• File:Stegomastodon mirificus - Smithsonian.JPG

  Mounted fossilized skeleton of the Pliocene-Pleistocene elephant relative Stegomastodon

  †Stegomastodon
  • †Stegomastodon aftoniae – type locality for species
• Sylvilagus
• Taxidea
  • †Taxidea taxus
• Ursus
  • †Ursus americanus
• Vulpes

References

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.