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

Precambrian

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

Paleozoic

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†Acrotreta
†Agnostogonus
- †Agnostogonus incognitus – or unidentified comparable form
Assemblage of fossils of the Cambrian trilobite Agnostus
†Agnostus
†Amiaspis
- †Amiaspis erratica
†Ankoura
- †Ankoura triangularis
- †Ankoura triangularus
†Aphelaspis
- †Aphelaspis haguei
†Arapahoia
- †Arapahoia spathulata
- †Arapahoia spatulata
†Arcifimbria
- †Arcifimbria pahasapaensis
†Arcifimbrin
- †Arcifimbrin pahasapaensis
†Arcuolimbus
- †Arcuolimbus convexus
†Billingsella
- †Billingsella wichitaensis
†Blountia
- †Blountia arcuosa
- †Blountia arion
- †Blountia bristolensis
- †Blountia eleanora
- †Blountia janei
- †Blountia nixonensis
†Blountiella
- †Blountiella alberta
- †Blountiella cordilleria
†Briscoia
- †Briscoia angustilimba – or unidentified comparable form
- †Briscoia dalyi
†Bynumia
- †Bynumia eumus
†Bynumina
†Camaraspis
Life restoration of the Carboniferous Chimaera relative Caseodus
†Caseodus
- †Caseodus eatoni – or unidentified related form
†Cedaria
†Cedarina
- †Cedarina cordillerae
- †Cedarina dakotaensis
- †Cedarina dakotensis
†Cheilocephalus
- †Cheilocephalus brevilobus
†Cladodus – or unidentified comparable form
†Clelandia
- †Clelandia typicalis
†Coosella
- †Coosella onusta
- †Coosella perplexa
- †Coosella prolifica
†Coosia
- †Coosia albertensis
- †Coosia alethes
†Coosina
- †Coosina ariston
†Crepicephalus
- †Crepicephalus auratus
- †Crepicephalus buttsimontanaenis
- †Crepicephalus buttsimontanaensis
- †Crepicephalus buttsimotanaensis
- †Crepicephalus deadwoodensis
- †Crepicephalus rectus
- †Crepicephalus snowyenis
- †Crepicephalus snowyensis
†Cyrtogomphoceras
†Dartonaspis
- †Dartonaspis wichitaensis
- †Dartonaspis witchitaensis
†Deadwoodia
†Dicellomus
†Diestoceras
†Dikelocephalus
- †Dikelocephalus minnesotensis
†Dresbachia
- †Dresbachia amata
Life restoration of the Late Devonian-Carboniferous Chimaera relative Edestus
†Edestus
†Ellipsocephaloides
- †Ellipsocephaloides curtus
- †Ellipsocephaloides monensis
- †Ellipsocephaloides monsensis
†Endoceras
†Eoorthis
- †Eoorthis indianola
- †Eoorthis remnicha
†Ephippiorthoceras
†Glaphyraspis
- †Glaphyraspis newtoni
- †Glaphyraspis parva
†Hadragnostus
- †Hadragnostus modestus
†Hardyoides
- †Hardyoides tenerus
†Holmesella
- †Holmesella quadrata
†Homagnostus
- †Homagnostus obesus
Fossilized shells of the Cambrian-Permian brachiopod relative Hyolitha
†Hyolithes
†Hysteropleura
- †Hysteropleura schucherti
†Idahoia
- †Idahoia serapio
- †Idahoia wisconsensis
†Idiomesus
- †Idiomesus granti
- †Idiomesus infimus
†Illaenurus
- †Illaenurus priscus
Restoration of the Carboniferous-Permian ray-like cartilaginous fish Janassa (top and left)
†Janassa
†Kingstonia
- †Kingstonia bealesoides
- †Kingstonia scrinium
- †Kingstonia spicata
- †Kingstonia spicta
- †Kingstonia walcotti
- †Kingstonia walcottia
†Komaspidella
- †Komaspidella hata
- †Komaspidella lata
†Kormagnostus
- †Kormagnostus beltensis
- †Kormagnostus seclusus
†Lambeoceras – tentative report
†Lingulella
†Lingulepis
†Linnarssonella
Restoration of the Carboniferous-Early Triassic cartilaginous fish Listracanthus
†Listracanthus
- †Listracanthus hystrix
†Litagnostus
- †Litagnostus paralis
†Llanoaspis
- †Llanoaspis undulata
†Meniscocorypphe
- †Meniscocorypphe platycephala
†Menomonia
- †Menomonia prooculis
†Meteoraspis
- †Meteoraspis keeganensis
- †Meteoraspis metra
- †Meteoraspis robusta
†Modocia
- †Modocia centralis
- †Modocia oweni
†Monocheilus
- †Monocheilus micros
- †Monocheilus truncatus
†Nahannagnostus
- †Nahannagnostus nganasanicus
- †Nahannagnostus nganasanious
†Parabolinoides
- †Parabolinoides contractus
- †Parabolinoides granulosus
†Pemphigaspis
- †Pemphigaspis bullata
†Petrodus
- †Petrodus patelliformis
†Plethopeltis
†Prosaukia
- †Prosaukia misa
†Pseudagnostus
- †Pseudagnostus douvillei
- †Pseudagnostus josephus
†Ptchaspis
- †Ptchaspis striata
†Ptychaspis
- †Ptychaspis bullasa
- †Ptychaspis miniscaensis
†Ptychopleurites
- †Ptychopleurites spinosa
†Pugionicauda
- †Pugionicauda paradoxa
†Rasettia
- †Rasettia capax
- †Rasettia magna
†Saukiella
- †Saukiella pyrene
†Spyroceras
†Syspacheilus
†Taenicephalus
- †Taenicephalus nasutus
- †Taenicephalus shumardi
†Terranovella
- †Terranovella dorsalis
Fossil of the Cambrian trilobite Tricrepicephalus
†Tricrepicephalus
- †Tricrepicephalus conia
- †Tricrepicephalus coria
- †Tricrepicephalus metra
- †Tricrepicephalus tripunctatus
†Tripteroceras
†Uncaspis
- †Uncaspis limbata
- †Uncaspis unca
†Welleraspis
- †Welleraspis group#1 – informal
- †Welleraspis group#2 – informal
†Westonoceras
†Wilsonoceras
†Winnipegoceras