List of the Mesozoic life of South Dakota

This list of the Mesozoic life of South Dakota contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of South Dakota and are between 252.17 and 66 million years of age.

A
  • Acipenser – or unidentified comparable form
  • †Actinocamax
  • †Actinosepia
    • †Actinosepia canadensis
  • †Adocus
  • †Agerostrea
    • †Agerostrea translucida
  • †Aletridelphys
    • †Aletridelphys florencae
    • †Aletridelphys hatcheri
  • †Allosaurus
  • Restorative model of the Late Cretaceous mammal Alphadon
    †Alphadon
    • †Alphadon marshi
  • †Amesoneuron
    • †Amesoneuron FU37 – informal
  • †Anatotitan
    • †Anatotitan copei
  • †Anisomyon
  • †Anomia
    • †Anomia gryphorhyncha
  • †Antillocaprina
  • †Anzu – type locality for genus
  • †Apatosaurus
  • †Araucarioxylon
    • †Araucarioxylon hoppertonae – type locality for species
  • Mounted fossilized skeleton of the Late Cretaceous sea turtle Archelon
    †Archelon – type locality for genus
    • †Archelon ischryos
    • †Archelon ischyros – type locality for species
  • †Artocarpus – report made of unidentified related form or using admittedly obsolete nomenclature
    • †Artocarpus lessigiana
  • Aspideretes
  • †Asplenium
    • †Asplenium Dicksonianum
  • †Axestemys – or unidentified comparable form
    • †Axestemys splendida

B
  • Fossilized shell of the Late Cretaceous ammonoid cephalopod Baculites
    †Baculites
    • †Baculites clinolobatus
    • †Baculites compressus
    • †Baculites grandis
    • †Baculites larsoni
    • †Baculites ovatus
    • †Baculites yokoyamai
  • †Bananogmius
    • †Bananogmius evolutus
  • †Baptornis
    • †Baptornis varneri – type locality for species
  • Restoration of the Late Jurassic sauropod dinosaur Barosaurus rearing to defend itself against a pair of the theropod Allosaurus
    †Barosaurus – type locality for genus
    • †Barosaurus lentus – type locality for species
  • †Basilemys
    • †Basilemys sinuosa
  • †Belemnitella
  • Beryx – or unidentified related form
  • †Binneyites
    • †Binneyites carlilensis
  • †Bisonia
    • †Bisonia niemii
  • †Bolodon
    • †Bolodon hydei – type locality for species
  • †Borealosuchus
    • †Borealosuchus sternbergii
  • †Borissiakoceras – tentative report
  • Brachidontes
  • Life restoration of the Late Cretaceous Alligator relative Brachychampsa
    †Brachychampsa
    • †Brachychampsa montana
  • †Brodavis
    • †Brodavis baileyi – type locality for species
  • †Bubodens – type locality for genus
    • †Bubodens magnus – type locality for species

C
  • †Caenagnathus
  • †Calycoceras
    • †Calycoceras boreale – type locality for species
    • †Calycoceras dromense – or unidentified comparable form
  • Life restoration of a herd of the Late Jurassic sauropod dinosaur Camarasaurus
    †Camarasaurus
  • Campeloma
  • †Camptonectes
    • †Camptonectes hallii
  • †Carabites
    • †Carabites russelli – type locality for species
  • †Cataceramus – or unidentified comparable form
    • †Cataceramus tenuilineatus
  • †Caturus
    • †Caturus dartoni – type locality for species
  • †Celastrophyllum
    • †Celastrophyllum pulchrum – type locality for species
  • Life restoration of the Late Cretaceous-Eocene choristoderan reptile Champsosaurus
    †Champsosaurus
  • †Cimexomys
  • †Cimolodon
    • †Cimolodon nitidus
  • †Cimolomys
    • †Cimolomys gracilis
  • †Cissites
    • †Cissites ingens
    • †Cissites salisburiaefolius
  • †Claibornites
    • †Claibornites cedrensis
  • †Claosaurus
    • †Claosaurus affinis – type locality for species
  • †Clavipholas
  • Life restoration of the Late Cretaceous mosasaurid Clidastes
    †Clidastes
    • †Clidastes propython
  • †Clisocolus
    • †Clisocolus moreauensis
  • †Cocculus
    • †Cocculus flabella
  • †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
    • †Corbula crassimarginata
  • †Corbulamella
    • †Corbulamella gregaria
  • †Crassatellina
    • †Crassatellina hollandi
  • †Crenella
    • †Crenella elegantula
  • †Cretodus
  • Fossil of the Early Cretaceous-Eocene shark Cretolamna
    †Cretolamna
    • †Cretolamna appendiculata
  • †Cteniogenys
    • †Cteniogenys antiquus
  • Cucullaea
    • †Cucullaea nebrascensis
  • †Cupressinocladus
    • †Cupressinocladus interruptus
  • †Curculionites
    • †Curculionites hylobioides – type locality for species
    • †Curculionites northropi – type locality for species
    • †Curculionites vulpinus – type locality for species
  • †Cuspidaria
    • †Cuspidaria moreauensis
    • †Cuspidaria ventricosa
  • Fossil of the Jurassic-Cretaceous cycad relative Cycadeoidea
    †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
  • †Cyclurus
    • †Cyclurus fragosus
  • †Cymbophora
    • †Cymbophora warrenana
  • Cyrtodaria
    • †Cyrtodaria minuta

D
  • †Dakotadon
    • †Dakotadon lakotaensis
  • Restoration of the Late Cretaceous dromaeosaurid ("raptor") Dakotaraptor preying upon an ostrich dinosaur
    †Dakotaraptor – type locality for genus
    • †Dakotaraptor steini – type locality for species
  • †Dakoticancer
    • †Dakoticancer overanus
  • †Delphodon
    • †Delphodon comptus – or unidentified comparable form
  • †Desmatochelys
    • †Desmatochelys lowi
  • †Didelphodon
    • †Didelphodon vorax – or unidentified comparable form
  • †Diplodocus
  • †Discoscaphites
    • †Discoscaphites conradi
    • †Discoscaphites gulosus
    • †Discoscaphites rossi – type locality for species
  • Life restoration of the Late Cretaceous plesiosaur Dolichorhynchops
    †Dolichorhynchops
    • †Dolichorhynchops bonneri
    • †Dolichorhynchops osborni
  • †Dosiniopsis
    • †Dosiniopsis deweyi
  • †Drepanochilus
    • †Drepanochilus evansi
  • †Dryophyllum
    • †Dryophyllum subfalcatum
    • †Dryophyllum tenneseensis
  • †Dunveganoceras
    • †Dunveganoceras pondi

E
  • †Edmontonia
    • †Edmontonia longiceps
  • Life restoration of the Late Cretaceous duck-billed dinosaur Edmontosaurus annectens
    †Edmontosaurus
  • †Elasmosaurus
    • †Elasmosaurus intermedius – type locality for species
  • †Elatides
    • †Elatides longifolia
  • †Ellipsoscapha
  • †Embaphias – type locality for genus
    • †Embaphias circulosus – type locality for species
  • †Enchodus
  • †Erlingdorfia
    • †Erlingdorfia montana
  • †Ethmocardium
    • †Ethmocardium welleri
  • †Eubostrychoceras
    • †Eubostrychoceras matsumotoi
  • †Eucalycoceras
    • †Eucalycoceras pentagonum
  • †Eutrephoceras
    • †Eutrephoceras dekayi

F
  • †Fokieniopsis
    • †Fokieniopsis catenulata

G
  • †Galagadon – type locality for genus[1]
    • †Galagadon nordquistae – type locality for species[1]
  • †Geosternbergia
    • †Geosternbergia maiseyi – type locality for species
  • Gleichenia
    • †Gleichenia Zippei
  • Life restoration of the Late Cretaceous mosasaur Globidens
    †Globidens
    • †Globidens alabamensis
    • †Globidens dakotensis – type locality for species
    • †Globidens schurmanni – type locality for species
  • †Glossozamites
    • †Glossozamites Fontaineanus – type locality for species
  • †Glyptops
  • Glyptostrobus
  • †Goniomya
    • †Goniomya americana
  • Life restoration of the Late Cretaceous tyrannosaur Gorgosaurus
    †Gorgosaurus
  • †Grammatodon
    • †Grammatodon sulcatinus
  • †Granocardium
    • †Granocardium whitei
  • †Graphidula
    • †Graphidula culbertsoni
  • †Grewiopsis
    • †Grewiopsis saportana
  • †Gypsonictops
    • †Gypsonictops hypoconus
  • †Gyrostrea
    • †Gyrostrea subtrigonalis

H
  • †Hainosaurus
    • †Hainosaurus neumilleri – type locality for species
  • †Hamites
    • †Hamites cimarronensis
  • †Helopanoplia
    • †Helopanoplia distincta
  • Hemiaster
    • †Hemiaster beecheri
  • †Hercorhynchus
    • †Hercorhynchus hollandi
  • Life restoration of the Late Cretaceous toothed bird Hesperornis
    †Hesperornis
    • †Hesperornis regalis – or unidentified comparable form
  • Hiatella – tentative report
  • †Hindsiella
    • †Hindsiella corsonensis
  • †Hoplitosaurus
    • †Hoplitosaurus marshi – type locality for species
  • †Hoploparia
  • †Hoploscaphites
    • †Hoploscaphites comprimus
    • †Hoploscaphites melloi – type locality for species
    • †Hoploscaphites nicolletii
  • Fossilized skeleton of the Early Jurassic bony fish Hulettia
    †Hulettia
    • †Hulettia americana – type locality for species
  • †Hypoxytoma
    • †Hypoxytoma nebrascana
  • †Hypsilophodon
    • †Hypsilophodon wielandi – type locality for species

I
  • †Ichthyodectes
  • †Infernolestes – type locality for genus
    • †Infernolestes rougieri – type locality for species
  • Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size
    †Inoceramus
    • †Inoceramus apicalis
    • †Inoceramus ginterensis
    • †Inoceramus tenuis – or unidentified related form
    • †Inoceramus tenuistriatus – tentative report
  • †Ischyodus
    • †Ischyodus rayhaasi
  • Isurus

J
  • †Jeletskytes
    • †Jeletskytes nodosus
  • Fossilized shell of the Late Cretaceous ammonoid cephalopod Jeletzkytes
    †Jeletzkytes
    • †Jeletzkytes dorfi
    • †Jeletzkytes nebrascensis
    • †Jeletzkytes spedeni – type locality for species
  • Juliacorbula
    • †Juliacorbula crassimarginata
  • Jupiteria
    • †Jupiteria scitula

L
  • †Lakotalestes – type locality for genus
    • †Lakotalestes luoi – type locality for species
  • Lamna
  • †Laurophyllum
    • †Laurophyllum wardiana
  • †Leepierceia
    • †Leepierceia preartocarpoides
  • Fossilized skull of the Late Cretaceous alligator relative Leidyosuchus
    †Leidyosuchus
  • †Lemnaceae
    • †Lemnaceae scutatum
  • †Lepidotes – tentative report
    • †Lepidotes lacotanus
  • Lepisosteus
    • †Lepisosteus occidentalis
  • †Leptalestes
    • †Leptalestes cooki
    • †Leptalestes krejcii
  • †Leptosolen
  • Limopsis
    • †Limopsis striatopunctatus
  • †Lioplacodes
  • †Lucina – tentative report

M
  • Malletia
    • †Malletia evansi
  • †Marmarthia
    • †Marmarthia pearsonii
    • †Marmarthia trivialis
  • †Melvius
    • †Melvius thomasi
  • †Meniscoessus
    • †Meniscoessus robustus
  • †Mesodma
    • †Mesodma formosa
    • †Mesodma hensleighi
    • †Mesodma thompsoni
  • †Modiolus
    • †Modiolus attenuatus – or unidentified related form
    • †Modiolus galpinianus
    • †Modiolus meeki
  • Life restoration of two of the Late Cretaceous Mosasaurus
    †Mosasaurus
    • †Mosasaurus missouriensis – type locality for species
  • †Myledaphus
    • †Myledaphus bipartitus

N
  • A living Nelumbo lotus
    †Nelumbo
    • †Nelumbo FU62 – informal
  • †Neocardioceras
    • †Neocardioceras transiens – type locality for species
  • †Nonactaeonina
  • †Nortedelphys
    • †Nortedelphys jasoni
  • Nucula
    • †Nucula cancellata
    • †Nucula percrassa
    • †Nucula planomarginata
  • Nuculana
    • †Nuculana grandensis
    • †Nuculana scitula
  • †Nymphalucina
    • †Nymphalucina occidentalis

O

P
  • Fossilized skeleton of the Late Cretaceous dome-headed dinosaur Pachycephalosaurus
    †Pachycephalosaurus – type locality for genus
    • †Pachycephalosaurus wyomingensis – type locality for species
  • †Pachyrhizodus
  • †Pahasapasaurus – type locality for genus
    • †Pahasapasaurus haasi – type locality for species
  • †Paleoaster
    • †Paleoaster inquirenda
  • †Palmoxylon
    • †Palmoxylon cheyennense
  • Panopea
    • †Panopea occidentalis
  • †Paronychodon
    • †Paronychodon lacustris
  • †Passumys – type locality for genus
    • †Passumys angelli – type locality for species
  • †Pediomys
    • †Pediomys elegans
  • Periploma
    • †Periploma subgracile
  • †Phelopteria
    • †Phelopteria linguaeformis
    • †Phelopteria minuta
    • †Phelopteria quadrate
  • Pholadomya
    • †Pholadomya deweyensis
  • †Pistia – report made of unidentified related form or using admittedly obsolete nomenclature
    • †Pistia corrugata
  • †Placenticeras
    • †Placenticeras pseudoplacenta
  • †Platanites
    • †Platanites marginata
  • Platanus
    • †Platanus cissoides
  • Life restoration of the Late Cretaceous mosasaur Platecarpus
    †Platecarpus
    • †Platecarpus somenensis – or unidentified comparable form
    • †Platecarpus tympaniticus
  • †Plesiobaena
    • †Plesiobaena antiqua
  • †Plioplatecarpus
    • †Plioplatecarpus primaevus – type locality for species
  • †Podozamites
    • †Podozamites lanceolatus
  • †Prionocyclus
    • †Prionocyclus macombi
    • †Prionocyclus novimexicanus
  • Fossilized skull of the Late Cretaceous mosasaur Prognathodon
    †Prognathodon
    • †Prognathodon overtoni – type locality for species
  • †Proplacenticeras
    • †Proplacenticeras stantoni
  • †Protacanthoceras
    • †Protacanthoceras proteus
  • †Protalphadon
    • †Protalphadon lulli – tentative report
  • †Protocardia
    • †Protocardia subquadrata
  • †Protosphyraena
  • †Protostega
    • †Protostega marshii – type locality for species
  • †Pseudoptera
    • †Pseudoptera subtortuosa
  • Life restoration of the Late Cretaceous pterosaur Pteranodon
    †Pteranodon
    • †Pteranodon longiceps
  • †Ptychodus
    • †Ptychodus janewayii
    • †Ptychodus occidentalis

Q
  • Quercus
    • †Quercus Wardiana
  • †Quereuxia
    • †Quereuxia angulata

R
  • †Rhamnus
    • †Rhamnus cleburni
  • †Rhombopsis
    • †Rhombopsis subturritus
  • Micrograph with magnified inset of a fossilized tooth of the Late Cretaceous theropod dinosaur Richardoestesia
    †Richardoestesia
    • †Richardoestesia isosceles

S
Base of the trunk of a living Sequoia tree with a human to scale
  • Sassafras
    • †Sassafras Mudgii
  • †Scaphites
    • †Scaphites delicatulus
  • †Semitriton
    • †Semitriton buccinoides
  • †Sequoia
    • †Sequoia HC70 – informal
  • †Serrifusus
    • †Serrifusus dakotaensis
  • Solemya
    • †Solemya subplicata
  • †Sourimis
    • †Sourimis equilateralis
  • Spaniorinus
    • †Spaniorinus nicolleti
  • Sphaerium
  • †Sphenobaiera
    • †Sphenobaiera ikorfatensis
  • †Sphenodiscus
    • †Sphenodiscus beecheri – tentative report
    • †Sphenodiscus lobatus
    • †Sphenodiscus pleurisepta
  • †Spyridoceramus
    • †Spyridoceramus tegulatus
  • Squalicorax
    • †Squalicorax falcatus
  • Squalus
  • †Stramentum
    • †Stramentum haworthi
  • Animated life restoration of the Late Cretaceous plesiosaur Styxosaurus
    †Styxosaurus
    • †Styxosaurus browni
    • †Styxosaurus snowii – type locality for species
  • †Syncyclonema
    • †Syncyclonema halli

T
  • †Tancredia
    • †Tancredia americana
  • †Tarrantoceras
    • †Tarrantoceras flexicostatum – or unidentified comparable form
  • †Tatankaceratops – type locality for genus
    • †Tatankaceratops sacrisonorum – type locality for species
  • †Taxodiaceaepollenites
  • Taxodium
    • †Taxodium olrikii
  • †Tellinimera
    • †Tellinimera scitula
  • †Tenuipteria
    • †Tenuipteria fibrosa
  • Life restoration of the Late Cretaceous herbivorous dinosaur Thescelosaurus
    †Thescelosaurus
    • †Thescelosaurus neglectus
  • †Thespesius – type locality for genus
    • †Thespesius occidentalis – type locality for species
  • †Torosaurus
    • †Torosaurus latus
  • †Toxochelys
    • †Toxochelys latiremis
  • †Trachodon
  • †Trachybaculites
    • †Trachybaculites columna
  • †Tragodesmoceras
    • †Tragodesmoceras carlilense
    • †Tragodesmoceras carlilensis
  • †Triceratops
    • †Triceratops horridus
  • †Trochodendroides
    • †Trochodendroides nebrascensis
  • †Tylosaurus
    • †Tylosaurus proriger
  • Fossilized skeleton of the Late Cretaceous tyrannosaur Tyrannosaurus
    †Tyrannosaurus
    • †Tyrannosaurus rex

V
  • †Vanikoropsis
    • †Vanikoropsis nebrascensis
  • †Viburnites
    • †Viburnites Evansanus
  • Shell of a Viviparus freshwater snail
    Viviparus

W
  • †Willimactra

Y

Z
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gollark: So just don't do that.
gollark: Asbestos is fine unless you disturb it, apparently.
gollark: I would probably just use a CC turtle thing somehow, or pump all the resonant ender out.
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References
  1. Terry A. Gates; Eric Gorscak; Peter J. Makovicky (2019). "New sharks and other chondrichthyans from the latest Maastrichtian (Late Cretaceous) of North America". Journal of Paleontology. 93 (3): 512–530. doi:10.1017/jpa.2018.92.
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