List of the Mesozoic life of Colorado

• †Acanthichnus – tentative report • Acila • †Acila chicotana • Acmaea • †Acmaea genettae – type locality for species • †Adocus • †Albanerpeton • †Albanerpeton nexuosus • †Albertosaurus – tentative report • †Allantodiopsis • †Allantodiopsis erosa • †Allantodiopsis JC018 – informal • †Allosaurus'' – type locality for genus • †Allosaurus fragilis – type locality for species • †Allosaurus lucasi – type locality for species • †Amblotherium – type locality for genus • †Amblotherium gracilis • Amia • †Amphicoelias – type locality for genus • †Amphicoelias altus – type locality for species • †Amphicotylus'' • †Amphicotylus lucasii – type locality for species • †Amplovalvata • †Amplovalvata scabrida • †Anaklinoceras • †Anaklinoceras minutum – type locality for species • †Anaklinoceras reflexum • †Anisoceras • †Anisoceras plicatilis • †Anisomyon • †Anisomyon centrale • †Anomia • †Anomia subquadrata • †Anomia tellinoides • †Anomoepus'' – tentative report • †Apateodus • †Apatopus • †Apatosaurus – type locality for genus • †Apatosaurus ajax – type locality for species • †Apatosaurus laticollis – type locality for species. Junior synonym of A. louisae. • †Apatosaurus louisae • †Arcellites • †Arcellites disciformis • †Archaeolamna • †Archaeolamna kopingensis • †Arenicolites • Aspideretes • †Aspideretes vagans – type locality for species • †Aspideretoides • Astarte • †Atlantosaurus • †Atlantosaurus immanis – type locality for species • †Axonoceras • †Axonoceras compressum ==B==

• †Baculites • †Baculites aquilaensis • †Baculites asper • †Baculites clinolobatus – type locality for species • †Baculites codyensis • †Baculites compressus • †Baculites cuneatus • †Baculites grandis • †Baculites haresi • †Baculites mclearni • †Baculites meeki – type locality for species • †Baculites reesidei • rearing to defend itself against a pair of the theropod Allosaurus †Barosaurus'' • †Basilemys • †Basilemys sinuosa – or unidentified comparable form • †Behuninia • †Behuninia provoensis • †Bellifusus • †Bison • †Bison alticornis – type locality for species • †Borealosuchus • †Borealosuchus sternbergii • †Brachauchenius – or unidentified comparable form • †Brachiosaurus – type locality for genus • †Brachiosaurus altithorax – type locality for species • †Brachychampsa • †Brachychampsa montana • †Brachychirotherium • †Brachyphyllum • †Brachyphyllum rechtenii – type locality for species • †Brontosaurus'' • †Brontosaurus excelsus • †Brontosaurus yahnahpin ==C==

• †Calycoceras • †Calycoceras canitaurinum • †Calycoceras naviculare • †Camarasaurus'' – type locality for genus • †Camarasaurus agilis – type locality for species • †Camarasaurus grandis • †Camarasaurus lewisi • †Camarasaurus supremus – type locality for species • †Camptosaurus – type locality for genus • †Camptosaurus dispar – type locality for species • Carcharias • †Carcharias amonensis • †Carcharias saskatchewanensis • †Carcharias tenuiplicatus • †Caririchnium • †Caririchnium leonardii – type locality for species • †Caririchnium leonaridii • †Cataceramus • †Cataceramus gladbeckensis • †Cedrobaena • †Cedrobaena brinkman • †Ceratodus – type locality for genus • †Ceratodus felchi – type locality for species • †Ceratodus guentheri – type locality for species • †Ceratosaurus'' – type locality for genus • †Ceratosaurus nasicornis – type locality for species • Cerithiopsis • †Champsosaurus • Chara • †Chelonipus • †Chinlea • †Chinlea sorenseni • †Chinlestegophis – type locality for genus • †Chinlestegophis jenkinsi – type locality for species • †Chirotherium • †Chirotherium lulli • †Cimolichthys • †Cimolichthys nepaholica • †Cimolodon – or unidentified comparable form • †Cimolomys'' • †Cionichthys • †Cionichthys dunklei • †Cionodon – type locality for genus • †Cionodon arctatus – type locality for species • †Cirroceras • †Cirroceras conradi • †Cladoceramus • †Cladoceramus undulatoplicatus • †Clidastes • †Clioscaphites • †Clioscaphites choteauensis • †Clioscaphites saxitonianus • †Clioscaphites vermiformis • †Coahuilites • †Coahuilites sheltoni • †Cochlichnus • †Codellaster – type locality for genus • †Codellaster keepersae – type locality for species • †Coelophysis – tentative report • †Coelurus'' • †Coelurus fragilis • †Compsemys • †Compsemys victa • †Coniasaurus • †Coniasaurus crassidens • Corbula • †Corydalites – type locality for genus • †Corydalites fecundum – type locality for species • Crassatella • †Crassatella franzeseii • †Cremnoceramus • †Cremnoceramus deformis • †Crenella • †Creonella • †Creonella triplicata • †Cretodus • †Cretodus semiplicatus • †Cretolamna • †Cretolamna appendiculata • †Cretomanta • †Cretomanta canadensis • , or the Ginsu shark †Cretoxyrhina'' • †Cretoxyrhina mantelli • Cucullaea • †Cucullaea nebrascensis • Cuspidaria • †Cuspidaria ventricosa • †Czekanowskia • †Czekanowskia turneri – tentative report ==D==

• †Diablophis • †Diablophis gilmorei – type locality for species • †Didymoceras • †Didymoceras aurarium – type locality for species • †Didymoceras cheyennense • †Didymoceras draconis • †Didymoceras stevensoni • †Dinehichnus • †Dinehichnus socialis • †Dinochelys • †Dinochelys whitei • (green) and D. hallorum (orange) with an anachronistic human to scale. †Diplodocus'' – type locality for genus • †Diplodocus lacustris – type locality for species • †Diplodocus longus – type locality for species • Diplodonta • †Diplodonta davisi • †Diplosaurus • †Diplosaurus felix – type locality for species • Discinisca • †Discoscaphites • †Discoscaphites conradi • †Docodon • †Docodon apoxys – type locality for species • †Dorsetisaurus • †Dorsetochelys'' • †Dorsetochelys buzzops – type locality for species • †Drepanocheilus • †Drepanocheilus evansi • †Drepanocheilus nebrascensis • †Drepanocheilus obesus • †Dryophyllum • †Dryophyllum tennesseensis • †Dryosaurus • †Dryosaurus altus ==E==

• †Edmontonia • with an anachronistic human to scale †Edmontosaurus'' • †Edmontosaurus regalis – type locality for species • Eilenodon – type locality for genus • †Eilenodon robustus – type locality for species • †Elopopsis • †Enchodus • †Enchodus gladiolus – or unidentified comparable form • †Enchodus shumardi – or unidentified comparable form • †Entolium • †Eoacteon • †Eoacteon sublinearis • †Eomunidopsis • †Eomunidopsis cobbani – type locality for species • †Eosauropus • †Eosauropus cimarronensis • †Eosauropus cimmaronensis • , or horsetail †Equisetum'' • †Equisetum burchardtii – or unidentified comparable form • †Etea • †Etea peasei • †Eubrontes • †Eubrontes giganteus • †Eucalycoceras • †Eucalycoceras pentagonum • †Euomphaloceras • †Euomphaloceras septemseriatum • †Eutrephoceras • †Eutrephoceras dekayi • †Eutretauranosuchus – type locality for genus • †Eutretauranosuchus delfsi – type locality for species • †Exiteloceras • †Exiteloceras jenneyi • †Exogyra • †Exogyra boveyensis – or unidentified related form ==F==

• †Fagesia'' • Ficus • †Ficus planicostata • †Forresteria • †Forresteria hobsoni – type locality for species • †Fruitachampsa – type locality for genus • †Fruitachampsa callisoni – type locality for species • †Fruitadens – type locality for genus • †Fruitadens haagarorum – type locality for species • †Fruitafossor – type locality for genus • †Fruitafossor windscheffeli – type locality for species ==G==

• †Galeamopus'' • †Galeamopus pabsti • †Glirodon • †Glirodon grandis • †Glyptops • †Glyptops plicatulus – type locality for species • †Goniopholis • †Goniopholis felchi – type locality for species • †Grallator • †Grallator cursorius • †Grallator tenuis • †Gryphaeostrea • †Gwyneddichnium • †Gypsonictops • †Gyroides ==H==

• †Hallopus'' • †Hallopus victor – type locality for species • †Haplocanthosaurus – type locality for genus • †Haplocanthosaurus delfsi – type locality for species • †Haplocanthosaurus priscus – type locality for species • †Harduinia • †Harduinia stantoni • †Harduinia taylori • †Haresiceras • †Haresiceras placentiforme • †Helopanoplia • †Helopanoplia distincta – or unidentified comparable form • †Hemicalypterus • †Hermanophyton • †Herrickiceras'' • †Herrickiceras costatus • †Holaster • †Holaster feralis – type locality for species • †Homolopsis • †Hoploscaphites • †Hoploscaphites birkelundae • †Hoploscaphites landesi • †Hoploscaphites macer • †Hoploscaphites nicolletii • †Hulettia – report made of unidentified related form or using admittedly obsolete nomenclature • †Hulettia hawesi – type locality for species • †Hypsirophus – type locality for genus • †Hypsirophus discurus – type locality for species ==I==

• †Ichthyodectes • †Ignotornis – type locality for genus • †Ignotornis mcconnelli – type locality for species • with a human indicating its size †Inoceramus'' • †Inoceramus altus • †Inoceramus altusiformis • †Inoceramus anomalus • †Inoceramus arnoldi • †Inoceramus balticus • †Inoceramus brancoiformis • †Inoceramus bueltenensis • †Inoceramus cordiformis • †Inoceramus crippsi – or unidentified related form • †Inoceramus deformis • †Inoceramus erectus • †Inoceramus flavus • †Inoceramus grandis • †Inoceramus longealatus • †Inoceramus muelleri - or unidentified loosely related form • †Inoceramus oblongus • †Inoceramus pictus • †Inoceramus prefragilis • †Inoceramus rutherfordi – or unidentified comparable form • †Inoceramus tenuistriatus – tentative report • †Ischyrhiza • †Ischyrhiza avonicola – or unidentified comparable form ==J==

• †Jeletzkytes'' • †Jeletzkytes brevis • †Jeletzkytes dorfi • †Jeletzkytes nodosus • †Jensensispermum • †Jensensispermum redmondii • Jupiteria • †Jupiteria scitula ==K==

• †Kepodactylus – type locality for genus • †Kepodactylus insperatus – type locality for species ==L==

• †Laosaurus – report made of unidentified related form or using admittedly obsolete nomenclature • Laternula • Lepisosteus – tentative report • †Lepisosteus occidentalis • †Leptalestes – tentative report • †Leptalestes cooki • †Leptolepis'' – or unidentified comparable form • †Lewyites • †Lewyites oronensis • Lima • †Lima janetae – type locality for species • †Lingula • †Lioestheria • †Lioestheria tendagurensis – or unidentified comparable form • †Lisserpeton • †Lisserpeton bairdi • †Lonchidion • †Lonchidion selachos • †Lucina • †Lyropecten ==M==

• †Macelognathus'' • †Macelognathus vagans • †Magadiceramus • †Magadiceramus complicatus • †Magadiceramus crenelatus • †Magadiceramus soukupi - or unidentified loosely related form • †Magadiceramus subquadratus • †Magnoavipes • †Magnoavipes caneeri – type locality for species • †Marmarthia – or unidentified comparable form • †Marmarthia pearsonii • †Marshosaurus – or unidentified comparable form • †Meniscoessus'' • †Meniscoessus collomensis – type locality for species • †Meniscoessus conquistus • †Meniscoessus robustus – or unidentified comparable form • †Mesadactylus – type locality for genus • †Mesadactylus ornithosphyos – type locality for species • †Mesembrioxylon • †Mesembrioxylon carterii – type locality for species • †Mesodma • †Mesodma formosa – or unidentified comparable form • †Mesojassoides – type locality for genus • †Mesojassoides gigantea – type locality for species • †Mesolanistes • †Mesolanistes reesidei • †Metengonoceras • †Metengonoceras dumbli • †Metoicoceras • †Metoicoceras geslinianum • †Micrabacia • †Micrabacia radiata • †Micropycnodon • †Micropycnodon kansasensis • †Modiolus • †Modiolus kremmlingensis – type locality for species • †Modiolus meeki • †Moremanoceras • †Moremanoceras scotti • †Morosaurus • †Morosaurus laticollis – type locality for species • †Morrolepis • †Morrolepis schaefferi – type locality for species • †Myledaphus • †Myledaphus bipartitus • †Mymoorapelta'' – type locality for genus • †Mymoorapelta maysi – type locality for species • Myrica • †Myrica torreyi • †Mytiloides • †Mytiloides duplicostatus – or unidentified related form • †Mytiloides latus – or unidentified comparable form • †Mytiloides mytiloides • †Mytiloides opalensis • †Mytiloides stantoni – or unidentified comparable form • †Mytiloides submytiloides – or unidentified related form ==N==

• †Nanosaurus – type locality for genus • †Nanosaurus agilis – type locality for species • †Nanosaurus rex • moon snail Natica'' • †Nemodon • †Nemodon adkinsi • †Nemodon harriesi – type locality for species • †Neocardioceras • †Neocardioceras densicostatum – type locality for species • †Neocardioceras juddii • †Neocardioceras laevigatum • †Neocardioceras minutum • †Neocardioceras uptonense • †Neocrioceras • †Neoptychites • †Neoptychites cephalotus • †Neurankylus • †Nigericeras • †Nigericeras scotti – type locality for species • †Nonactaeonina • †Nonactaeonina deflexa • †Nonactaeonina triticea • †Nortedelphys • †Nortedelphys jasoni • †Nostoceras'' • †Nostoceras approximans – or unidentified comparable form • †Nostoceras larimerense – type locality for species • †Nostoceras monotuberculatum • †Nostoceras obtusum – or unidentified comparable form • †Nostoceras splendidum – or unidentified comparable form • Nucula • †Nucula percrassa • Nuculana • †Nymphalucina • †Nymphalucina bourni – type locality for species • †Nymphalucina cleburni ==O==

• †Octopodichnus • †Odaxosaurus • †Odaxosaurus piger • †Oligoptycha • †Oligoptycha concinna • †Opertochasma • †Opertochasma cuneatum • †Opisthias • †Opisthotriton • †Opisthotriton kayi • †Ornitholestes – tentative report • †Ornithomimipus • †Ornithomimipus angustus – or unidentified comparable form • †Ornithomimus'' – type locality for genus • †Ornithomimus velox – type locality for species • Ostrea • †Ostrea beloiti • †Ostrea subradiata • †Othnielia – tentative report • †Othnielosaurus • †Othnielosaurus consors • †Oxybeloceras • †Oxybeloceras crassum • †Oxytoma ==P==

• †Pachycephalosaurus'' • †Pachyrhizodus • †Pachyrhizodus minimus • †Palaeobalistum • †Palaeopteryx – type locality for genus • †Paleonelumbo • †Paleonelumbo macroloba • †Parabrontopodus – type locality for genus • †Parabrontopodus mcintoshi – type locality for species • †Parallelodon • †Paramacellodus • †Parapleurites • †Parapleurites morrisonensis – type locality for species • †Paressonodon – type locality for genus • †Paressonodon nelsoni – type locality for species • †Parikimys – type locality for genus • †Parikimys carpenteri – type locality for species • †Parviraptor • †Pentaceratops'' • †Pentaceratops sternbergii • †Pentasauropus • †Petropteron – type locality for genus • †Petropteron mirandum – type locality for species • †Phelopteria • †Phelopteria linguaeformis • †Phelopteria ruppii – type locality for species • †Phlycticrioceras • †Phlycticrioceras trinodosus • †Pinna • †Placenticeras • †Placenticeras meeki • †Placenticeras placentum • †Placenticeras syrtale • †Plastomenus – tentative report • †Plastomenus insignis – type locality for species • †Plastomenus punctulatus – type locality for species • †Platanites • †Platanites marginata • †Platyceramus'' • †Platyceramus ahsenensis • †Platyceramus cycloides • †Platyceramus mantelli - or unidentified loosely related form • †Platyceramus platinus • †Platyognathus • †Plesiobaena • †Plesiobaena antiqua – or unidentified comparable form • †Polyonax – type locality for genus • †Polyonax mortuarius – type locality for species • †Preprismatoolithus • †Preprismatoolithus coloradensis • †Priacodon • †Priacodon fruitaensis – type locality for species • †Prionocyclus • †Probaena • †Probaena sculpta – type locality for species • †Prognathodon'' • †Prognathodon overtoni • †Prognathodon stadtmani – type locality for species • Propeamussium • †Propeamussium simplicus • †Protalphadon • †Protexanites • †Protexanites shoshonensis • †Protocardia • †Protocardia barneyi – type locality for species • †Protocupressinoxylon • †Protocupressinoxylon medlynii – type locality for species • †Protolambda • †Protolambda hatcheri • †Protosphyraena'' • Prunus • †Prunus corrugis • †Pseudaspidoceras • †Pseudaspidoceras collignoni • †Pseudobaculites • †Pseudocalycoceras • †Pseudocalycoceras angolaense • †Pseudocalycoceras dentonense • †Pseudoisurus • †Pseudoisurus tomosus – or unidentified comparable form • †Pseudoperna • †Pseudoperna bentonensis • †Pseudoperna congesta • †Pseudoperna inflatum – type locality for species • †Pseudotetrasauropus – tentative report • †Pteraichnus • †Ptychodus • †Ptychodus anonymus • †Ptychodus decurrens • †Ptychodus occidentalis • †Ptychodus whipplei • †Puebloites • †Puebloites spiralis • Pycnodonte • †Pycnodonte newberryi ==R==

• †Rhaeboceras • †Rhaeboceras coloradoense – type locality for species • †Rhaeboceras halli • †Rhaeboceras subglobosum • guitar fish Rhinobatos'' • †Rhinobatos incertus • †Rhynchosauroides • †Rosselia • †Rotodactylus ==S==

• †Sabalites • †Sabalites JC016 – informal • †Sabalites LA042 – informal • †Saurillodon • †Scapherpeton • †Scapherpeton tectum • †Scaphites'' • †Scaphites binneyi • †Scaphites depressus • †Scaphites hippocrepis – or unidentified comparable form • †Scaphites nodosus • †Schadipes – type locality for genus • †Schadipes crypticus – type locality for species • †Sciponoceras • †Sciponoceras gracile • †Scoyenia • †Selaginella • †Selaginella JC023 – informal • †Semionotus'' • †Solenoceras • †Solenoceras larimerense • †Solenoceras reesidei – or unidentified comparable form • †Solenoceras texanum • †Sphenodiscus • †Sphenodiscus pleurisepta • †Spiroxybeloceras • †Spiroxybeloceras meekanum • Squalicorax • †Squalicorax curvatus • †Squalicorax falcatus • †Squalicorax pristodontus • †Squatirhina • †Squatirhina americana • †Stegosaurus'' – type locality for genus • †Stegosaurus armatus – type locality for species • †Stegosaurus stenops – type locality for species • †Stegosaurus ungulatus • †Steinerocaulis • †Steinerocaulis radiatus • †Stenomyti – type locality for genus • †Stenomyti huangae – type locality for species • †Stokesosaurus – or unidentified comparable form • †Stramentum • †Stramentum haworthi • Sulcoretusa • †Sulcoretusa dominici – type locality for species • †Sumitomoceras • †Sumitomoceras bentonianum • †Sumitomoceras conlini • with an anachronistic human to scale †Supersaurus'' – type locality for genus • †Supersaurus vivianae – type locality for species • †Syncyclonema • †Syncyclonema travisanus • †Synorichthys – type locality for genus • †Synorichthys stewarti – type locality for species ==T==

• †Tanaocrossus – type locality for genus • †Tanaocrossus kalliokoskii – type locality for species • †Tanocrossus • Tellina • †Tenea • †Tenea parilis • Teredo • †Teredo irregularis • †Texanites • †Texanites americanus • †Thalassomedon'' – type locality for genus • †Thalassomedon hanningtoni – type locality for species • †Theiophytalia – type locality for genus • †Theiophytalia kerri – type locality for species • †Therangospodus – or unidentified comparable form • †Thescelosaurus • †Tibiaporrhais • †Tibiaporrhais cooperensis • †Titanosaurus • †Titanosaurus montanus – type locality for species • (A) and Triceratops (B) to scale †Torosaurus'' • †Torosaurus latus • †Torvosaurus – type locality for genus • †Torvosaurus tanneri – type locality for species • †Trachybaculites • †Trachybaculites columna – or unidentified comparable form • †Treptichnus • †Triceratops • †Triceratops galeus – type locality for species • †Triceratops horridus • †Trinacromerum – or unidentified comparable form • Trochocyathus • †Trochocyathus egerius • †Turbinopsis • Turritella • †Turseodus • †Turseodus dolorensis – type locality for species • †Tylosaurus • †Tylosaurus proriger • †Tyrannosaurus'' • †Tyrannosaurus rex ==V==

• †Vanikoropsis • †Vanikoropsis nebrascensis • †Vascoceras'' • †Vascoceras birchbyi • Viviparus • †Viviparus reesidei • †Volviceramus • †Volviceramus grandis • †Volviceramus involutus • †Voysa ==W==