List of the prehistoric life of Montana

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

Precambrian

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

Paleozoic

Selected Paleozoic taxa of Montana

Mesozoic

Selected Mesozoic taxa of Montana

  • Life restoration of the Late Cretaceous horned dinosaur Achelousaurus
    Achelousaurus – type locality for genus
    • Achelousaurus horneri – type locality for species
  • Acheroraptor – type locality for genus
    • Acheroraptor temertyorum – type locality for species
  • Acipenser
  • Acristavus – type locality for genus
    • Acristavus gagslarsoni – type locality for species
  • Adocus
  • Albanerpeton
    • Albanerpeton nexuosus
  • Albertaceratops
    • Albertaceratops nesmoi
  • Albertosaurus
  • Allocrioceras
  • Life restoration of the Late Jurassic theropod dinosaur Allosaurus
    Allosaurus
  • Alphadon
    • Alphadon attaragos
    • Alphadon halleyi – type locality for species
    • Alphadon marshi
    • Alphadon wilsoni
  • Alzadasaurus – tentative report
  • Amia
  • Amphicoelias
  • Anatotitan
    • Anatotitan copei
  • Life restoration of the Late Cretaceous armored dinosaur Ankylosaurus
    Ankylosaurus – type locality for genus
    • Ankylosaurus magniventris – type locality for species
  • Aquilops – type locality for genus
    • Aquilops americanus – type locality for species
  • Aralia – or unidentified comparable form
  • Arcticoceras – tentative report
  • Arctocephalites
    • Arctocephalites gracilis – or unidentified comparable form
    • Arctocephalites maculatus – or unidentified comparable form
    • Arctocephalites platynotus – or unidentified comparable form
    • Arctocephalites sawtoothensis
    • Arctocephalites saypoensis
  • Asplenium
  • Astarte
  • Aublysodon
    • Aublysodon mirandus
  • Avaceratops – type locality for genus
    • Avaceratops lammersi – type locality for species
  • Life restoration of the Late Cretaceous toothed bird Avisaurus perched on a crocodilian
    Avisaurus – type locality for genus
    • Avisaurus archibaldi – type locality for species
    • Avisaurus gloriae – type locality for species
  • Azolla
  • Baculites
    • Baculites asper
    • Baculites codyensis
    • Baculites compressus
    • Baculites mariasensis
  • Baena
  • Bambiraptor – type locality for genus
    • Bambiraptor feinbergi – type locality for species
  • Barbourula – or unidentified comparable form
  • Mounted fossilized skeleton of the Cretaceous turtle Basilemys
    Basilemys
  • Belonostomus
    • Belonostomus longirostris
  • Bernissartia
  • Borealosuchus
    • Borealosuchus sternbergii
  • Brachaelurus
  • Brachyceratops – type locality for genus
    • Brachyceratops montanensis – type locality for species
  • Brachychampsa – type locality for genus
    • Brachychampsa montana – type locality for species
  • Fossilized natural mummy of the Late Cretaceous duck-billed dinosaur Brachylophosaurus
    Brachylophosaurus
    • Brachylophosaurus canadensis – type locality for species
  • Camarasaurus
  • Campeloma
  • Carcharias
  • Cedrobaena
  • Centrosaurus
  • Cerasinops – type locality for genus
    • Cerasinops hodgskissi – type locality for species
  • Ceratodus
  • Ceratops – type locality for genus
    • Ceratops montanus – type locality for species
  • Chamops
  • Life restoration of the Late Cretaceous-Eocene choristoderan reptile Champsosaurus
    Champsosaurus
  • Chasmosaurus – or unidentified comparable form
  • Chiloscyllium
  • Chirostenotes
    • Chirostenotes elegans
  • Chlamys
  • Chondroceras
  • Cimexomys
    • Cimexomys minor
  • Cimolestes
    • Cimolestes incisus
    • Cimolestes stirtoni
  • Cimoliasaurus
  • Cimolodon
    • Cimolodon nitidus
  • Life restoration of the face of the Late Cretaceous multituberculate mammal Cimolomys
    Cimolomys
    • Cimolomys clarki – type locality for species
    • Cimolomys gracilis
  • Cimolopteryx
    • Cimolopteryx maxima
  • Cladophlebis
    • Cladophlebis alberta
    • Cladophlebis constricta
    • Cladophlebis heterophylla
    • Cladophlebis inclinata
    • Cladophlebis oblongifolia
    • Cladophlebis oerstedi
    • Cladophlebis virginiensis
  • Claosaurus
  • Claraia
    • Claraia aurita
    • Claraia clarai
    • Claraia mulleri
    • Claraia stachei
  • Clidastes
  • Componocancer
    • Componocancer roberti
  • Compsemys
  • Coniophis
  • Continuoolithus
  • Coriops
  • Mounted fossilized skeleton of the Late Cretaceous duck-billed dinosaur Corythosaurus
    Corythosaurus
    • Corythosaurus casuarius
  • Cretolamna
    • Cretolamna appendiculata
  • Cretorectolobus – type locality for genus
    • Cretorectolobus olsoni – type locality for species
  • Crocodilus
  • Cucullaea
  • Daspletosaurus
    • Daspletosaurus horneri – type locality for species
  • Deinodon – type locality for genus
    • Deinodon horridus – type locality for species
  • Life restoration of the Early Cretaceous dromaeosaur ("raptor") Deinonychus
    Deinonychus – type locality for genus
    • Deinonychus antirrhopus – type locality for species
  • Deinosuchus – type locality for genus
    • Deinosuchus rugosus – type locality for species
  • Dentalium
  • Derrisemys
  • Diclonius
  • Didelphodon
  • Didymoceras
  • Life restoration of the Late Jurassic long-necked dinosaur Diplodocus
    Diplodocus
  • Doratodon – or unidentified comparable form
  • Dromaeosaurus
    • Dromaeosaurus albertensis
  • Dyoplosaurus
    • Dyoplosaurus acutosquameus
  • Edgarosaurus
    • Edgarosaurus muddi
  • Edmontonia
    • Edmontonia longiceps
    • Edmontonia rugosidens – type locality for species
  • Edmontosaurus
  • Einiosaurus – type locality for genus
    • Einiosaurus procurvicornis – type locality for species
  • Emarginachelys – type locality for genus
    • Emarginachelys cretacea – type locality for species
  • Eodelphis
  • Eopelobates – or unidentified comparable form
  • Equisetum
  • Essonodon – type locality for genus
    • Essonodon browni – type locality for species
  • Eucrossorhinus
  • Euomphaloceras
  • Restoration of the Late Cretaceous armored dinosaur Euoplocephalus
    Euoplocephalus
    • Euoplocephalus tutus
  • Eutrephoceras
  • Exiteloceras
  • Exogyra
  • Ficus – or unidentified comparable form
  • Gervillia
  • Gilmoremys
    • Gilmoremys lancensis
  • Ginkgo
  • Ginkgoites
  • Glishades – type locality for genus
    • Glishades ericksoni – type locality for species
  • Glyptops
  • Glyptostrobus – or unidentified comparable form
  • Mounted fossilized skeleton of the Middle Jurassic-Late Cretaceous mammal Gobiconodon
    Gobiconodon – type locality for genus
  • Goniobasis
  • Gorgosaurus
    • Gorgosaurus libratus – type locality for species
  • Gryphaea
    • Gryphaea impressimarginata
  • Gryposaurus
    • Gryposaurus latidens – type locality for species
    • Gryposaurus notabilis
  • Habrosaurus
    • Habrosaurus dilatus
  • Hadrosaurus
    • Hadrosaurus breviceps – type locality for species
    • Hadrosaurus paucidens – type locality for species
  • Hamites
  • Life restoration of the Late Cretaceous toothed bird Hesperornis
    Hesperornis
  • Hybodus
    • Hybodus montanensis – type locality for species
  • Hypacrosaurus
    • Hypacrosaurus stebingeri – type locality for species
  • Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size
    Inoceramus
    • Inoceramus arnoldi
    • Inoceramus canaliculatus
    • Inoceramus cancellatus
    • Inoceramus cardissoides - or unidentified loosely related form
    • Inoceramus cordiformis – or unidentified comparable form
    • Inoceramus erectus
    • Inoceramus fragilis – or unidentified related form
    • Inoceramus frechi – or unidentified comparable form
    • Inoceramus gibbosus
    • Inoceramus gilli – type locality for species
    • Inoceramus glacierensis – type locality for species
    • Inoceramus koeneni
    • Inoceramus latisulcatus – or unidentified comparable form
    • Inoceramus lesginensis
    • Inoceramus lingua – or unidentified comparable form
    • Inoceramus lundbreckensis
    • Inoceramus sokolovi – type locality for species
    • Inoceramus undabundus
    • Inoceramus walterdorfensis
  • Ischyodus
    • Ischyodus bifurcatus
  • Ischyrhiza
    • Ischyrhiza avonicola
    • Ischyrhiza mira
  • Life restoration of the Late Cretaceous horned dinosaur Judiceratops
    Judiceratops – type locality for genus
    • Judiceratops tigris – type locality for species
  • Kritosaurus
  • Krokolithes
  • Lepidotes
    • Lepidotes haydeni – type locality for species
    • Lepidotes occidentalis – type locality for species
  • Lepisosteus
  • Leptalestes
    • Leptalestes cooki
    • Leptalestes krejcii
    • Leptalestes prokrejcii
    • Leptalestes toevsi – type locality for species
  • Life restoration of the Late Cretaceous primitive horned dinosaur Leptoceratops
    Leptoceratops
    • Leptoceratops gracilis
  • Leptorhynchos – tentative report
  • Lingula
  • Lisserpeton – type locality for genus
    • Lisserpeton atlantes
    • Lisserpeton bairdi – type locality for species
  • Lonchidion
  • Lopha
  • Lucina
  • Lunatia
  • Magnuviator – type locality for genus
  • Maiasaura – type locality for genus
    • Maiasaura peeblesorum – type locality for species
  • Medusaceratops – type locality for genus
    • Medusaceratops lokii – type locality for species
  • Melvius – type locality for genus
  • Meniscoessus
    • Meniscoessus major
    • Meniscoessus robustus – type locality for species
  • Mercuriceratops – type locality for genus
    • Mercuriceratops gemini – type locality for species
  • Mesodma
    • Mesodma formosa
    • Mesodma hensleighi
    • Mesodma primaeva
    • Mesodma thompsoni
  • Metoicoceras
    • Metoicoceras geslinianum
    • Metoicoceras mosbyense – type locality for species
    • Metoicoceras muelleri
  • Metzgeriites
  • Microvenator – type locality for genus
    • Microvenator celer – type locality for species
  • Modiolus
  • Monoclonius – type locality for genus
    • Monoclonius crassus – type locality for species
    • Monoclonius recurvicornis – type locality for species
    • Monoclonius sphenocerus – type locality for species
  • Montanalestes
  • Mounted fossilized skeletons of the Late Cretaceous pterosaur Montanazhdarcho
    Montanazhdarcho – type locality for genus
    • Montanazhdarcho minor – type locality for species
  • Montanoceratops
    • Montanoceratops cerorhynchus – type locality for species
  • Montanoolithus – type locality for genus
  • Mosasaurus
    • Mosasaurus missouriensis
  • Myledaphus
    • Myledaphus bipartitus
  • Mytilus
  • Nanotyrannus
    • Nanotyrannus lancensis – type locality for species
  • Naomichelys – type locality for genus
  • A living Nelumbo lotus
    Nelumbo
  • Neocardioceras
    • Neocardioceras juddii
    • Neocardioceras minutum
  • Neoplagiaulax
    • Neoplagiaulax burgessi – type locality for species
  • Nezpercius – type locality for genus
  • Nidimys – type locality for genus
  • Normannites – tentative report
  • Notogoneus
  • Nucula
  • Obamadon – type locality for genus
    • Obamadon gracilis – type locality for species
  • Odaxosaurus
    • Odaxosaurus piger
  • A living Odontaspis sand shark
    Odontaspis
    • Odontaspis sanguinei – type locality for species
  • Oklatheridium
  • Onchosaurus
  • Oohkotokia – type locality for genus
    • Oohkotokia horneri – type locality for species
  • Ophiomorpha
  • Opisthotriton
  • Ornithomimus
    • Ornithomimus grandis – type locality for species
    • Ornithomimus tenuis – type locality for species
  • Orodromeus – type locality for genus
    • Orodromeus makelai – type locality for species
  • Life restoration of the Late Cretaceous herbivorous dinosaur Oryctodromeus in a burrow
    Oryctodromeus – type locality for genus
    • Oryctodromeus cubicularis – type locality for species
  • Ostrea
  • Oxytoma
  • Pachycephalosaurus – type locality for genus
    • Pachycephalosaurus wyomingensis – type locality for species
  • Pagiophyllum
  • Palaeobatrachus
  • Palaeosaniwa
    • Palaeosaniwa canadensis
  • Palaeoscincus – type locality for genus
    • Palaeoscincus costatus – type locality for species
  • Palatobaena
  • Paleopsephurus – type locality for genus
    • Paleopsephurus wilsoni – type locality for species
  • Illustration of a fossilized skull of the Late Cretaceous armored dinosaur Panoplosaurus
    Panoplosaurus
  • Pappotherium
  • Paracimexomys
    • Paracimexomys judithae – type locality for species
    • Paracimexomys magnus – type locality for species
    • Paracimexomys priscus
    • Paracimexomys propriscus – type locality for species
    • Paracimexomys robisoni – or unidentified comparable form
  • Paralbula
  • Paramacellodus – or unidentified comparable form
  • Paranecturus – type locality for genus
    • Paranecturus garbanii – type locality for species
  • Fossilized shell of the Late Cretaceous ammonoid cephalopod Parapuzosia with a human indicating its size
    Parapuzosia
  • Paronychodon
    • Paronychodon lacustris
  • Pectinodon – or unidentified comparable form
  • Pholadomya
    • Pholadomya kingi
  • Physa
  • Piceoerpeton
  • Piksi – type locality for genus
    • Piksi barbarulna – type locality for species
  • Pinna
  • Pistia
  • Plesiobaena
  • Pleuronautilus
  • Prenoceratops – type locality for genus
    • Prenoceratops pieganensis – type locality for species
  • Prismatoolithus
  • Proamphiuma
  • Prodesmodon
  • Mounted fossilized skeleton of the Late Cretaceous duck-billed dinosaur Prosaurolophus
    Prosaurolophus
    • Prosaurolophus blackfeetensis – type locality for species
  • Protocardia
  • Protoscaphirhynchus – type locality for genus
  • Protungulatum
  • Pseudomelania
  • Pteria – tentative report
  • Pteropelyx – type locality for genus
    • Pteropelyx grallipes – type locality for species
  • Ptychotrygon
    • Ptychotrygon blainensis – type locality for species
    • Ptychotrygon triangularis
  • Pycnodonte
  • Quercus – report made of unidentified related form or using admittedly obsolete nomenclature
  • Life restoration of a flock of the Late Cretaceous pterosaur Quetzalcoatlus feeding on the ground
    Quetzalcoatlus – or unidentified comparable form
  • Rhamnus – report made of unidentified related form or using admittedly obsolete nomenclature
  • Richardoestesia
    • Richardoestesia gilmorei
    • Richardoestesia isosceles
  • Rubeosaurus
    • Rubeosaurus ovatus – type locality for species
  • Rugocaudia – type locality for genus
    • Rugocaudia cooneyi – type locality for species
  • Sagenopteris
    • Sagenopteris elliptica
    • Sagenopteris mclearni
    • Sagenopteris williamsii
  • Life restoration of the Early Cretaceous armored dinosaurs Sauropelta
    Sauropelta – type locality for genus
    • Sauropelta edwardsorum – type locality for species
  • Saurornitholestes
    • Saurornitholestes langstoni
  • Scapherpeton
  • Scaphites
    • Scaphites impendicostatus
    • Scaphites preventricosus
    • Scaphites ventricosus
  • Scolosaurus
    • Scolosaurus cutleri
  • Scotiophryne – type locality for genus
  • Base of the trunk of a living Sequoia tree with a human to scale
    Sequoia
  • Sphaerium
  • Sphaerotholus
    • Sphaerotholus buchholtzae – type locality for species
  • Sphenopteris
    • Sphenopteris brulensis
    • Sphenopteris geopperti
    • Sphenopteris latiloba
    • Sphenopteris mclearni
  • Spheroolithus
    • Spheroolithus albertensis
    • Spheroolithus choteauensis – type locality for species
    • Spheroolithus maiasauroides
  • Restoration of the Late Cretaceous horned dinosaur Spiclypeus
    Spiclypeus – type locality for genus
    • Spiclypeus shipporum – type locality for species
  • Spiriferina – report made of unidentified related form or using admittedly obsolete nomenclature
  • Squalicorax
    • Squalicorax kaupi
    • Squalicorax pristodontus
  • Squatirhina
    • Squatirhina americana
  • Stegoceras
    • Stegoceras validum
  • Stegosaurus
  • Suuwassea – type locality for genus
    • Suuwassea emilieae – type locality for species
  • Tatankacephalus – type locality for genus
    • Tatankacephalus cooneyorum – type locality for species
  • Life restoration of the Early Cretaceous Iguanodon relative Tenontosaurus
    Tenontosaurus – type locality for genus
    • Tenontosaurus tilletti – type locality for species
  • Terminonaris – type locality for genus
    • Terminonaris robusta – type locality for species
  • Thalassomedon – type locality for genus
    • Thalassomedon hanningtoni – type locality for species
  • Thescelosaurus
    • Thescelosaurus garbanii – type locality for species
    • Thescelosaurus neglectus
  • Toxolophosaurus – type locality for genus
  • Trachodon – type locality for genus
    • Trachodon altidens
    • Trachodon marginatus
    • Trachodon mirabilis – type locality for species
  • Mounted fossilized skeleton of the Late Cretaceous horned dinosaur Triceratops
    Triceratops
    • Triceratops horridus
    • Triceratops maximus – type locality for species
    • Triceratops prorsus
  • Trigonia
    • Trigonia montanaensis
  • Trionyx
  • Triprismatoolithus – type locality for genus
  • Troodon – type locality for genus
    • Troodon formosus – type locality for species
  • Tubercuoolithus – type locality for genus
  • Turritella
  • Tylosaurus
    • Tylosaurus proriger
  • Fossilized skeleton of the Late Cretaceous tyrannosaur Tyrannosaurus
    Tyrannosaurus – type locality for genus
    • Tyrannosaurus rex – type locality for species
  • Ugrosaurus – type locality for genus
    • Ugrosaurus olsoni – type locality for species
  • Unio
  • Valenopsalis
  • Valvata – tentative report
  • Vitis – report made of unidentified related form or using admittedly obsolete nomenclature
  • Viviparus
  • Volviceramus
  • Woodwardia – report made of unidentified related form or using admittedly obsolete nomenclature
  • Xenocephalites – tentative report
  • Xenophora
  • Yezoites
  • Fossil of the Early Triassic-Eocene cycad-like frond Zamites
    Zamites
    • Zamites arcticus
  • Zapsalis – or unidentified comparable form
  • Zephyrosaurus – type locality for genus
    • Zephyrosaurus schaffi – type locality for species

Cenozoic

Selected Cenozoic taxa of Montana

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References

  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 7 August 2017.
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