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

Paleozoic

†Acrotreta †Agnostogonus †Agnostogonus incognitus – or unidentified comparable form †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 †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 †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 †Hyolithes †Hysteropleura †Hysteropleura schucherti †Idahoia †Idahoia serapio †Idahoia wisconsensis †Idiomesus †Idiomesus granti †Idiomesus infimus †Illaenurus †Illaenurus priscus †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 †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 †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

Mesozoic

Selected Mesozoic taxa of South Dakota

Acipenser – or unidentified comparable form †Actinocamax †Adocus †Agerostrea †Allosaurus †Alphadon †Alphadon marshi †Anatotitan †Anatotitan copei †Anomia †Anzu – type locality for genus †Anzu wyliei – type locality for species †Apatosaurus †Araucarioxylon †Archelon – type locality for genus †Archelon ischyros – type locality for species †Artocarpus – report made of unidentified related form or using admittedly obsolete nomenclature Aspideretes †Asplenium †Baculites †Baculites clinolobatus †Baculites compressus †Baculites grandis †Baculites larsoni †Baculites ovatus †Baculites yokoyamai †Bananogmius †Baptornis †Baptornis varneri – type locality for species †Barosaurus – type locality for genus †Barosaurus lentus – type locality for species †Basilemys †Belemnitella †Belemnitella bulbosa Beryx – or unidentified related form †Bolodon †Bolodon hydei – type locality for species †Borealosuchus †Borealosuchus sternbergii Brachidontes †Brachychampsa †Brachychampsa montana †Brodavis †Brodavis baileyi – type locality for species †Caenagnathus †Calycoceras †Calycoceras boreale – type locality for species †Calycoceras dromense – or unidentified comparable form †Camarasaurus Campeloma †Caturus †Champsosaurus †Cimexomys †Cimolodon †Cimolodon nitidus †Cimolomys †Cimolomys gracilis †Claosaurus †Claosaurus affinis – type locality for species †Clidastes †Clidastes propython †Cocculus †Collignoniceras †Collignoniceras collisniger – type locality for species †Collignoniceras jorgenseni – type locality for species †Collignoniceras percarinatum †Collignoniceras praecox †Collignoniceras vermilionense †Collignoniceras woolgari †Collignoniceras woollgari †Compsemys Corbula †Corbulamella †Crenella †Crenella elegantula †Cretolamna †Cretolamna appendiculata †Cteniogenys Cucullaea †Cuspidaria †Cycadeoidea †Cycadeoidea aspera – type locality for species †Cycadeoidea cicatricula – type locality for species †Cycadeoidea colei – type locality for species †Cycadeoidea colossalis – type locality for species †Cycadeoidea dacotensis †Cycadeoidea excelsa – type locality for species †Cycadeoidea formosa – type locality for species †Cycadeoidea furcata – type locality for species †Cycadeoidea ingens – type locality for species †Cycadeoidea insolita – type locality for species †Cycadeoidea jenneyana †Cycadeoidea Jenneyana †Cycadeoidea marshiana – type locality for species †Cycadeoidea mcbridei – type locality for species †Cycadeoidea McBridei – type locality for species †Cycadeoidea minnekahtensis – type locality for species †Cycadeoidea nana – type locality for species †Cycadeoidea occidentalis – type locality for species †Cycadeoidea paynei – type locality for species †Cycadeoidea pulcherrima – type locality for species †Cycadeoidea stillwelli – type locality for species †Cycadeoidea turrita – type locality for species †Cycadeoidea Wellsii – type locality for species †Dakotadon †Dakotadon lakotaensis †Dakotaraptor – type locality for genus †Dakotaraptor steini – type locality for species †Desmatochelys †Didelphodon †Diplodocus †Discoscaphites †Discoscaphites conradi †Discoscaphites gulosus †Discoscaphites rossi – type locality for species †Dolichorhynchops †Dolichorhynchops osborni †Edmontonia †Edmontonia longiceps †Edmontosaurus †Elasmosaurus †Elasmosaurus intermedius – type locality for species †Enchodus †Eubostrychoceras †Eucalycoceras †Eutrephoceras †Geosternbergia †Geosternbergia maiseyi – type locality for species Gleichenia †Globidens †Globidens alabamensis †Globidens dakotensis – type locality for species †Globidens schurmanni – type locality for species †Glyptops Glyptostrobus †Glyptostrobus europaeus †Gorgosaurus †Hainosaurus †Hamites †Hesperornis †Hesperornis regalis – or unidentified comparable form Hiatella – tentative report †Hoplitosaurus †Hoplitosaurus marshi – type locality for species †Hoploparia †Hoploscaphites †Hoploscaphites comprimus †Hoploscaphites melloi – type locality for species †Hoploscaphites nicolletii †Hulettia †Hypsilophodon †Hypsilophodon wielandi – type locality for species †Ichthyodectes †Inoceramus †Inoceramus apicalis †Inoceramus ginterensis †Inoceramus tenuis – or unidentified related form †Inoceramus tenuistriatus – tentative report †Ischyodus †Ischyodus rayhaasi Isurus †Jeletzkytes †Jeletzkytes dorfi †Jeletzkytes nebrascensis †Jeletzkytes spedeni – type locality for species Lamna †Leidyosuchus †Lemnaceae †Lepidotes – tentative report Lepisosteus †Leptalestes †Leptalestes cooki †Leptalestes krejcii †Lucina – tentative report †Martinectes †Martinectes bonneri †Melvius †Meniscoessus †Meniscoessus robustus †Mesodma †Mesodma formosa †Mesodma hensleighi †Mesodma thompsoni †Modiolus †Mosasaurus †Mosasaurus missouriensis – type locality for species †Myledaphus †Myledaphus bipartitus †Nelumbo †Neocardioceras †Neocardioceras transiens – type locality for species Nucula †Nucula percrassa †Ophiomorpha †Ornithomimus †Osmakasaurus †Osmakasaurus depressus – type locality for species Ostrea †Otoscaphites †Oxytoma †Pachycephalosaurus – type locality for genus †Pachycephalosaurus wyomingensis – type locality for species †Pachyrhizodus †Pahasapasaurus – type locality for genus †Pahasapasaurus haasi – type locality for species †Palmoxylon Panopea †Paronychodon †Paronychodon lacustris Pholadomya †Pistia – report made of unidentified related form or using admittedly obsolete nomenclature †Placenticeras †Placenticeras pseudoplacenta Platanus †Platecarpus †Platecarpus somenensis – or unidentified comparable form †Platecarpus tympaniticus †Plesiobaena †Plioplatecarpus †Plioplatecarpus primaevus – type locality for species †Prognathodon †Prognathodon overtoni – type locality for species †Proplacenticeras †Protocardia †Protosphyraena †Protostega †Pteranodon †Pteranodon longiceps †Ptychodus †Ptychodus occidentalis Quercus †Rhamnus †Richardoestesia †Richardoestesia isosceles Sassafras †Scaphites †Sequoia Solemya Sphaerium †Sphenobaiera †Sphenodiscus †Sphenodiscus beecheri – tentative report †Sphenodiscus lobatus †Sphenodiscus pleurisepta Squalicorax †Squalicorax falcatus Squalus †Styxosaurus †Styxosaurus browni †Styxosaurus snowii – type locality for species †Tatankaceratops – type locality for genus †Tatankaceratops sacrisonorum – type locality for species Taxodium †Thescelosaurus †Thescelosaurus neglectus †Thespesius – type locality for genus †Thespesius occidentalis – type locality for species †Torosaurus †Torosaurus latus †Toxochelys †Toxochelys latiremis †Trachodon †Tragodesmoceras †Tragodesmoceras carlilense †Tragodesmoceras carlilensis †Triceratops †Triceratops horridus †Tylosaurus †Tylosaurus proriger †Tyrannosaurus †Tyrannosaurus rex Viviparus †Yezoites Yoldia Ziziphus

Cenozoic

Selected Cenozoic taxa of South Dakota

†Aelurodon †Aepycamelus †Agnotocastor †Agriochoerus Alligator †Alligator prenasalis – type locality for species †Ambystoma †Ambystoma tigrinum †Amebelodon †Ampelopsis †Amphechinus †Anchitherium Antilocapra †Antilocapra americana Apalone †Aphelops †Archaeocyon †Archaeohippus †Archaeotherium †Arctodus †Arctodus simus †Arctonasua Azolla †Barbourofelis †Barbourofelis whitfordi †Bathornis †Bathornis veredus Bison †Bison latifrons Blarina †Blarina carolinensis – or unidentified comparable form †Bothriodon †Brachypsalis †Brachyrhynchocyon †Brontops Bufo †Bufo woodhousei Buteo †Calippus †Camelops Canis