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

• 

  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

• 

  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

• 

  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

• 

  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

• 

  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

• 

  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

• 

  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

• 

  Life restoration of the Carboniferous Chimaera relative Iniopteryx

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

• 

  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

• 

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

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

• 

  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

• 

  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

• 

  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

• 

  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

• 

  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

  • 

    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

• 

  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.