List of the prehistoric life of Montana

The Paleobiology Database records no known occurrences of Precambrian fossils in Montana. ==Paleozoic==

Selected Paleozoic taxa of Montana • †Achistrum • †Allenypterus'' – type locality for genus • †Allenypterus montanus – type locality for species • Ammodiscus • †Amphiscapha • †Amplexus • †Aphelaeceras • †Athyris • †Atrypa • †Aulopora • †Aviculopecten • †Aviculopecten kaibabensis – or unidentified comparable form • †Avonia • †Bathyuriscus • †Belantsea'' – type locality for genus • †Belantsea montana – type locality for species • †Bellerophon • †Callograptus • †Camarotoechia • †Camarotoechia contracta • †Camarotoechia crenistria • †Camarotoechia elegantula • †Camarotoechia herrickana – or unidentified related form • †Camarotoechia metallica • †Camarotoechia mutata • †Camarotoechia tuta • †Caninia • †Caridosuctor'' – type locality for genus • †Carinoclymenia • †Cavusgnathus • †Cheiloceras • †Chonetes • †Chonetes geniculatus • †Chonetes loganensis • †Chonetes logani • †Chonetes ornatus • †Cladodus • †Cleiothyridina • †Cleiothyridina atrypoides • †Cleiothyridina ciriacksi – type locality for species • †Cleiothyridina coloradoensis – or unidentified comparable form • †Cleiothyridina devonica • †Cleiothyridina hirsuta • †Cleiothyridina incrassata – or unidentified related form • †Cleiothyridina sublamellosa • †Clonograptus • †Composita'' • †Composita humilis • †Composita laevis • †Composita lateralis – or unidentified comparable form • †Composita madisonensis • †Composita ovata • †Composita ozarkana • †Composita sulcata • †Cornulites • †Crania • †Cyranorhis – type locality for genus • †Cyrtospirifer • †Cyrtospirifer animaensis • †Cyrtospirifer animasensis – or unidentified comparable form • †Cyrtospirifer bertrandi – type locality for species • †Cyrtospirifer gallatinensis • †Cyrtospirifer hornellensis • †Cyrtospirifer monticola • †Cyrtospirifer perryi – type locality for species • †Cyrtospirifer thalattodoxa – tentative report • †Cyrtospirifer whitneyi • †Cystodictya • †Damocles – type locality for genus • †Debeerius – type locality for genus • †Delphyodontos'' – type locality for genus • †Delphyodontos dacriformes – type locality for species • †Dendrograptus • †Dictyonema • †Dikelocephalus • †Distomodus • †Echinaria • †Echinochimaera – type locality for genus • †Echinochimaera meltoni – type locality for species • †Echinochimaera snyderi – type locality for species • †Edmondia • †Elrathina • Eocaudina • †Falcatus • †Falcatus falcatus • †Favosites • †Fenestella • †Fenestrella • †Geragnostus • †Hadronector – type locality for genus • †Harpagofututor'' – type locality for genus • †Harpagofututor volsellorhinus – type locality for species • †Helicoprion • †Hyolithes • †Hypothyris • †Hypseloconus • †Irvingella • †Janassa • †Joanellia • †Joanellia lundi • †Kendallina • †Kootenia • †Lingula • †Lingulella • †Lioestheria • †Lithostrotion • †Lloydia • †Lochmocercus – type locality for genus • †Maladia • †Martinia • †Maryvillia • †Megalaspidella • †Megistaspis'' • †Micromitra • †Naticopsis • †Naticopsis remex – or unidentified comparable form • †Neospirifer • †Neospirifer praenuntius – type locality for species • †Neospirifer striatus • †Netsepoye – type locality for genus • †Nisusia • † Nix – type locality for genus • †Obolus • †Ogyginus • †Orygmaspis • †Ozarkodina • †Ozarkodina deflecta • †Ozarkodina elongata • †Ozarkodina macilenta • †Ozarkodina modesta • †Ozarkodina regularis • †Paladin – tentative report • †Paleolimulus • †Paratarrasius – type locality for genus • †Pelagiella • †Pentremites'' • †Peronopsis • †Pinna • †Platyceras • †Platyclymenia • †Polyosteorhynchus – type locality for genus • †Prodentalium • †Proetus • †Prographularia • †Ptychagnostus • †Ptychagnostus atavus • †Ptychoparia • † Ramesses – type locality for genus • †Rota • †Siksika – type locality for genus • †Siksika ottae – type locality for species • †Soris – type locality for genus • †Spathognathodus • †Spirifer'' • †Spirifer brazerianus – or unidentified related form • †Spirifer centronatus • †Spirifer greenockensis – or unidentified comparable form • †Spirifer grimesi • †Spirifer louisianensis – or unidentified related form • †Spirifer marionensis – or unidentified comparable form • †Spirifer mudulus • †Spirifer raymondi • †Spirifer shoshonensis • †Spirifer welleri – tentative report • †Spiriferina • Spirorbis • †Stethacanthus'' • †Stethacanthus altonensis • †Syringopora • †Tornoceras • †Tylonautilus • †Westergaardodina • †Wilkingia • †Worthenia – tentative report ==Mesozoic==

Selected Mesozoic taxa of Montana • †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 • †Allosaurus'' • †Alphadon • †Alphadon attaragos • †Alphadon halleyi – type locality for species • †Alphadon marshi • †Alphadon wilsoni • †Alzadasaurus – tentative report • Amia • †Amphicoelias • †Anatotitan • †Anatotitan copei • †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 • with prey †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 • †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 • †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 • †Champsosaurus'' • †Chasmosaurus – or unidentified comparable form • Chiloscyllium • †Chirostenotes • †Chirostenotes elegans • Chlamys • †Chondroceras • †Cimexomys • †Cimexomys minor • †Cimolestes • †Cimolestes incisus • †Cimolestes stirtoni • †Cimoliasaurus • †Cimolodon • †Cimolodon nitidus • †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 • †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 • †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 • †Didymoceras cheyennense • †Didymoceras nebrascense • †Didymoceras stevensoni • †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 • †Edmontosaurus annectens'' • †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 • †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 • †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 • †Hesperornis'' • †Hybodus • †Hybodus montanensis – type locality for species • †Hypacrosaurus • †Hypacrosaurus stebingeri – type locality for species • 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 • †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 • †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 • †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 • 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 • 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 • 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 • †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 • with a human indicating its size †Parapuzosia'' • †Parapuzosia bradyi – type locality for species • †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 • †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 • 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 • †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 • 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 • †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 • †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 • †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 • †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 • †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 • Abies • Abies • Acer • †Acheronodon • †Acheronodon garbani – type locality for species • Acipenser • †Acritohippus'' • †Acritohippus isonesus • †Aelurodon • †Aepycamelus • †Aepycamelus stocki • †Agnotocastor • †Agriochoerus • †Agrostis • †Ailanthus • Alangium • Alnus • . Margret Flinsch (1932). †Amebelodon'' • Amelanchier • †Amentotaxus • Amia • †Ampelopsis • †Amphechinus • †Amphicyon • †Amyzon • Anas • †Anas platyrhynchos – or unidentified comparable form • †Anconodon • †Anemia • †Angustidens • Antilocapra – or unidentified comparable form • †Antilocapra americana • †Aphelops • †Araucaria • †Archaeocyon • †Archaeohippus • †Arctocyon • †Arctodus • †Arctodus simus • †Arctostaphylos • Arundo • Arvicola • †aspera • †Astronium • †Athyana • †Avunculus • water ferns Azolla'' • †Baiotomeus • †Baiotomeus douglassi • †Baiotomeus lamberti – type locality for species • †Bathygenys • †Berberis • Berchemia • Betula • Bibio – or unidentified related form • Bison • †Bison bison • , also known as the giant bison or long-horned bison †Bison latifrons'' – or unidentified comparable form • †Bisonalveus • †Bisonalveus browni • †Blastomeryx • †Blastomeryx gemmifer • †Bootherium • †Borealosuchus • †Borealosuchus sternbergii • †Brachychampsa • †Brachycrus • †Brachyrhynchocyon • †Camelops • †Camelops minidokae • †Canavalia • Canis • †Canis latrans • †Canis lupus • †Canna • †Cardiospermum • Carpinus • †Carpolestes'' • Carya • †Cassia • Castanea • Castor • †Castor californicus • †Castor canadensis • †Catalpa • †Catopsalis • †Catopsalis alexanderi • †Catopsalis waddleae • Ceanothus • Cedrela • †Celastrus • Celtis • Cercidiphyllum • Cercis • †Cercocarpus • †Chamaecyparis • †Chamops • †Champsosaurus'' • †Chisternon • †Chriacus • †Chriacus calenancus • †Chthonophis – type locality for genus • †Chthonophis subterraneus – type locality for species • †Cimexomys • †Cimexomys minor – type locality for species • †Cimolestes • †Cimolestes incisus • , or cinnamon tree Cinnamomum'' • Cissus • Clematis • Cocculus • †Colodon • †Colubrina • †Colubrina asiatica – or unidentified comparable form • †Compsemys • †Coniophis – or unidentified comparable form • †Conzattia • Cornus • †Corylus • †Coryphodon • †Cosoryx – tentative report • Crataegus • tree †Credneria'' • Crematogaster • Culiseta • †Cynodesmus • Cynomys • †Cynomys ludovicianus • †Dalbergia • †Dalbergia retusa • †Daphoenictis – or unidentified comparable form • †Davidia • †Derrisemys – type locality for genus • †Desmatochoerus • †Diceratherium • †Didymictis • . Robert Bruce Horsfall (1913). †Dinictis'' • †Dinohippus • †Dioctria – tentative report • †Diospyros • †Diphysa • Dipteronia • †Dissacus • Dolichoderus • †Domnina • †Dromomeryx'' • †Dromomeryx borealis • Dryopteris • †Ectocion • †Elomeryx – tentative report • †Eoconodon • †Eoconodon nidhoggi • †Eotitanops • †Epicyon • †Epicyon haydeni • †Epihippus • †Equisetum • Equus • †Equus conversidens – or unidentified comparable form • †Eucastor • †Eucommia • plant †Eucommia montana'' • †Euonymus • †Euoplocyon • Exbucklandia • Ficus • Fokienia • Formica • †Fraxinus • Geochelone • Gerrhonotus – or unidentified comparable form • Ginkgo • †Ginkgo adiantoides • Gleichenia • Glyptostrobus • †Goniacodon • †Habrosaurus • †Habrosaurus dilatus • †Helaletes • Helius • †Helodermoides'' – type locality for genus • †Helodermoides tuberculatus – type locality for species • †Herpetotherium • †Herpetotherium fugax • †Herpetotherium knighti – or unidentified comparable form • †Hesperocyon • †Heteraletes • †Hiodon • Holmskioldia • †Holopogon • Homo • †Homo sapiens • , or scimitar cat †Homotherium'' • †Homotherium serum • †Hutchemys – type locality for genus • †Hyaenodon • †Hyaenodon crucians • Hydrangea • †Hydromystria • †Hyopsodus • †Hypertragulus • †Hypisodus • . Heinrich Harder (1920). †Hypohippus'' • †Hypolagus • †Hypsiops • †Hyrachyus • †Hyracodon • †Ictidopappus • †Intyrictis • †Ischyrhiza – or unidentified comparable form • †Ischyrhiza avonicola • †Ischyromys • Isoetes • Juglans • †Juglans regia – or unidentified comparable form • Juniperus • †Kerria • †Kimbetohia • Koelreuteria • Lasius • Laurus • Lemmiscus • †Lemmiscus curtatus • Lepisosteus • †Leptauchenia'' • †Leptictis • †Leptocyon • †Leptomeryx • †Leptoreodon • †Leucaena • †Limnenetes • Lindera • †Lisserpeton • †Lisserpeton bairdi • †Lithornis • †Lithornis celetius – type locality for species • Lynx • , or bobcat †Lynx rufus'' • Magnolia • Mahonia • †Mammut • †Mammut americanum • †Mammuthus • †Mammuthus columbi • †Mammuthus primigenius • Marchantia • Marmota • Martes • †Megacerops'' • †Megahippus • †Megalonyx • †Megalonyx jeffersonii • †Megantereon • †Megatylopus • †Menodus • †Merriamoceros • †Merychippus • †Merychippus sejunctus • †Merychyus • †Merycochoerus'' • †Merycodus • †Merycoides • †Merycoidodon • †Mesodma • †Mesodma formosa • †Mesodma garfieldensis – type locality for species • †Mesodma pygmaea – type locality for species • †Mesodma thompsoni • †Mesohippus • †Mesoreodon • Metasequoia • †Metasequoia occidentalis • †Metopium • †Miacis'' – report made of unidentified related form or using admittedly obsolete nomenclature • †Microcosmodon • †Microcosmodon harleyi – type locality for species • Microtus • †Microtus pennsylvanicus – or unidentified comparable form • †Mimetodon • †Miniochoerus – tentative report • †Miohippus – type locality for genus • †Miohippus grandis • †Monosaulax • Morus • Mustela • †Mustela frenata • Myrica • †Nanotragulus • †Nelumbo • . Robert Bruce Horsfall (1913). †Neohipparion'' • †Neoplagiaulax • †Neoplagiaulax donaldorum – type locality for species • †Neoplagiaulax grangeri – type locality for species • †Neoplagiaulax hunteri – type locality for species • †Neoplagiaulax kremnus • †Neoplagiaulax mckennai • †Neoplagiaulax nelsoni – type locality for species • †Niglarodon • †Nuphar • †Nyssa • †Odaxosaurus • †Odaxosaurus piger • deer Odocoileus'' – or unidentified comparable form • Olar • Ondatra • †Ondatra zibethicus • †Onoclea • †Opisthotriton • Oreohelix • †Oreonetes • †Osmanthus • †Osmunda • †Osmunda greenlandica • Ostrya • †Otarocyon • †Oxyacodon • . Robert Bruce Horsfall (1913). †Oxydactylus'' • †Palaeogale • †Palaeolagus • †Palaeoryctes • †Palaeosinopa • †Palaeosyops • †Palatobaena • †Paleopsephurus – or unidentified comparable form • Paliurus • †Pandemonium • †Pantolambda • †Pantomimus – type locality for genus • Paramylodon †Paramylodon • †Paramylodon harlani • †Paramys • †Paratomarctus • †Parectypodus • †Parectypodus sinclairi – type locality for species • †Parectypodus sylviae • †Parictis • †Parthenocissus • †Paulownia • †Peltosaurus • Penthetria • †Peraceras • Perognathus • Peromyscus • †Peromyscus maniculatus – or unidentified comparable form • Persea • . Charles R. Knight (1898). †Phenacodus'' • Phragmites • Picea • †Piceoerpeton • Pinus • †Pithecolobium • †Planetetherium • †Planetetherium mirabile – type locality for species • †Plastomenoides – type locality for genus • Platanus • Plecia • †Plesiadapis • †Pliohippus • †Plithocyon • †Poebrotherium • †Pogonodon'' • Populus • †Potentilla • †Prochetodon • †Prochetodon foxi – type locality for species • †Prodesmodon • †Proiridomyrmex • †Promerycochoerus • †Proscalops • †Prosphyracephala • †Protazteca'' • †Protohippus • †Protolabis • †Protungulatum • †Protungulatum donnae • Prunus • †Pseudhipparion • †Pseudolarix • †Pseudomesoreodon – type locality for genus • Pseudomyrmex • †Pseudotsuga • †Psittacotherium'' • Ptelea • Pteris • Pterocarya • †Ptilodus • †Ptilodus kummae • †Ptilodus montanus – type locality for species • †Ptilodus tsosiensis • †Purgatorius'' • †Purgatorius janisae – type locality for species • †Purgatorius titusi – type locality for species • †Purgatorius unio – type locality for species • †Pyracantha • Quercus • †Rana – or unidentified comparable form • Rangifer • †Rangifer tarandus • †Rhamnus • †Rhamnus crocea • Rhus • †Robinia • Rosa • Sabal • †Saccoloma • Salix • †Sambucus • †Sapindus • Sassafras • †Sassafras hesperia'' • †Scapherpeton • †Scaphohippus • †Scotiophryne – or unidentified comparable form • †Selaginella • Sequoia • †Sequoia affinis • †Simoedosaurus • †Simpson • †Smilax • †Sophora • †Sorbus • †Sparganium • Spea • Spermophilus • †Spermophilus richardsonii • †Spiraea • †Stelocyon • †Steneofiber • †Stenomylus'' • †Stenomylus hitchcocki – or unidentified comparable form • Sterculia • †Stygimys • †Stygimys camptorhiza – or unidentified comparable form • †Stygimys jepseni – type locality for species • †Stygimys kuszmauli – type locality for species • †Subdromomeryx • †Subdromomeryx antilopinus • †Subhyracodon • †Submerycochoerus • †Sylvicola fenestralis • Sylvilagus • †Sylvilagus nuttallii • †Symplocarpus • †Taeniolabis • †Taeniolabis lamberti – type locality for species • †Tapocyon'' • Taricha • Taxodium • †Teleoceras • †Tetraclaenodon • Thomomys • †Thomomys talpoides • †Thrinax • †Thuja • †Ticholeptus • Tilia • †Tinuviel • Tipula • †Titanoides'' • †Titanoides gidleyi • †Trapa • †Trigenicus • †Trigonias • †Tropidia • †Tylocephalonyx • Typha • Ulmus • Ursus • †Vaccinium • †Valenopsalis • †Vauquelinia • †Viburnum • †Viguiera • Vitis • †Viverravus – tentative report • †Woodwardia • †Xyronomys • Zelkova ==References==