Dinosaurs and other fossils found in Wyoming

What dinosaurs have been found in Wyoming?

The Paleobiology Database records 71 dinosaur genera from Wyoming. Those with the most fossil records there are Camarasaurus, Triceratops, Allosaurus, Stegosaurus, Diplodocus, Apatosaurus.

Dinosaurs found in Wyoming (71 genera)

Camarasaurus, Triceratops, Allosaurus, Stegosaurus, Diplodocus, Apatosaurus, Edmontosaurus, Brontosaurus, Tyrannosaurus, Saurornitholestes, Sauropelta, Deinonychus, Pachycephalosaurus, Barosaurus, Ankylosaurus, Tenontosaurus, Troodon, Ornithomimus, Ceratosaurus, Torvosaurus, Brachiosaurus, Dromaeosaurus, Acrocanthosaurus, Sauroposeidon, Leptoceratops, Nodosaurus, Struthiomimus, Torosaurus, Albertosaurus, Daspletosaurus, Saurolophus, Elaphrosaurus, Fosterovenator, Potamornis, Anomoepus, Supersaurus and 35 more genera without a page here: Acheroraptor, Ahvaytum, Amphicoelias, Ardetosaurus, Brontopodus, Camptosaurus, Coelurus, Dacentrurus, Dakotasaurus, Dryosaurus, Dryptosaurus, Dyslocosaurus, Galeamopus, Gargoyleosaurus, Grallator, Hadrosauropodus, Haplocanthosaurus, Hesperornithoides, Hesperosaurus, Kaatedocus, Microvenator, Nanotyrannus, Ornitholestes, Osmakasaurus, Panoplosaurus, Paronychodon, Pectinodon, Richardoestesia, Saurexallopus, Saurornithoides, Stegopelta, Stenonychosaurus, Stokesosaurus, Tanycolagreus, Zapsalis.

Prehistoric birds (104 genera)

Limnofregata, Anas, Buteo, Cimolopteryx, Corvus, Bubo, Numenius, Charadrius, Asio, Presbyornis, Juncitarsus, Bathornis, Lithornis, Lamarqueavis, Primobucco, Minerva, Aquila, Turdus, Branta, Larus, Gavia, Grus, Mergus, Gallinago, Calidris, Lagopus, Aythya, Phasianus, Podiceps, Porzana, Tympanuchus, Centrocercus, Agelaius, Junco, Buteogallus, Spatula, Antigone, Surnia, Torotix, Ceramornis, Eocypselus, Eostrix, Neophrontops, Graculavus, Lonchodytes, Nahmavis, Fluvioviridavis, Paracathartes, Calciavis, Cyrilavis, Eofringillirostrum, Primoptynx, Amitabha, Anachronornis, Celericolius · 49 more genera recorded.

Pterosaurs (3 genera)

Pteraichnus, Pteranodon, Harpactognathus.

Ichthyosaurs (4 genera)

Ophthalmosaurus, Platypterygius · 2 more genera recorded.

Plesiosaurs & kin (13 genera)

Pantosaurus, Tatenectes, Trinacromerum, Megalneusaurus, Polycotylus, Serpentisuchops, Martinectes, Unktaheela, Elasmosaurus · 4 more genera recorded.

Mosasaurs (1 genera)

Platecarpus.

Crocodile relatives (30 genera)

Crocodylus, Poposaurus, Alligator, Leidyosuchus · 26 more genera recorded.

Early tetrapods & amphibians (3 genera)

3 more genera recorded.

Pre-mammals (synapsids) (1 genera)

1 more genera recorded.

Early mammals (1 genera)

1 more genera recorded.

Ice Age & later mammals (737 genera)

Hyopsodus, Phenacodus, Sifrhippus, Coryphodon, Ectocion, Cantius, Diacodexis, Viverravus, Didymictis, Paramys, Microsyops, Plesiadapis, Homogalax, Hyrachyus, Oxyaena, Palaeosinopa, Vulpavus, Miacis, Notharctus, Heptodon, Herpetotherium, Chriacus, Prolimnocyon, Ectypodus, Hyracotherium, Apatemys, Orohippus, Uintacyon, Copecion, Peradectes, Probathyopsis, Lambdotherium, Pachyaena, Omomys, Mesodma, Palaeosyops, Smilodectes, Azygonyx, Arctocyon, Ectoganus, Dissacus, Meniscoessus, Tritemnodon, Didelphodus, Carpolestes, Ignacius, Ptilodus, Cimolodon, Hesperocyon, Sinopa, Meniscotherium, Cimolomys, Teilhardina, Eucosmodon, Plagiomene, Aletodon, Merychyus, Trogosus, Vassacyon, Protorohippus, Miniochoerus, Didelphodon, Leptomeryx, Macrocranion, Parectypodus, Anacodon, Palaeolagus, Palaeonictis, Leptauchenia, Merycoidodon, Ischyromys, Uintatherium, Gypsonictops, Chiromyoides, Neoplagiaulax, Anaptomorphus, Hyaenodon, Poebrotherium, Helaletes, Eotitanops, Mimoperadectes, Patriofelis, Cimolestes, Amynodon, Alphadon, Epihippus, Prochetodon, Copelemur, Uintasorex, Hyracodon, Metacheiromys, Brachycrus, Bathyopsis, Palaeoryctes, Pseudotomus, Subhyracodon, Stylinodon, Limnocyon, Mesoreodon, Desmocyon, Microcosmodon, Paraenhydrocyon, Hapalodectes, Periptychus, Telmatherium, Lambertocyon, Hemiacodon, Titanoides, Synoplotherium, Oodectes, Promerycochoerus, Turgidodon, Bathygenys, Leptalestes, Menoceras, Stenomylus, Diceratherium, Dryolestes, Phlaocyon, Parictis, Brachyrhynchocyon, Neoliotomus, Mesohippus, Archaeotherium, Protungulatum, Cynarctoides, Sespia, Tetraclaenodon, Pediomys, Anconodon, Miotylopus, Merycoides, Protoreodon, Desmatochoerus, Hoplophoneus, Protolabis, Gracilocyon, Merycodus, Mesogaulus, Wyonycteris, Merycochoerus, Laolestes, Amblotherium, Ctenacodon, Galecyon, Peratherium, Hypisodus, Leptolambda, Macrotarsius, Archaeocyon, Oxyacodon, Enhydrocyon, Carpodaptes, Cimexomys, Protalphadon, Megacerops, Dinictis, Mesonyx, Pantolambda, Trigonias, Daphoenus, Daphoenodon, Leptotragulus, Agriochoerus, Tytthaena, Baiotomeus, Triplopus, Moropus, Harpagolestes, Leptictis, Megalictis, Kalobatippus, Palaeogale, Tylocephalonyx, Mesatirhinus, Psalodon, Achaenodon, Pseudoprotoceras, Daphoenictis, Oxyclaenus, Mimetodon, Nanotragulus, Merychippus, Icaronycteris, Machaeroides, Parahippus, Ectoconus, Oxydactylus, Neovulpavus, Priacodon, Raphictis, Paratylopus, Trigenicus, Paracynarctus, Prosciurus, Pseudolabis, Diplobunops, Paracimexomys, Mammuthus, Mustela, Equus, Ovis, Miohippus, Leptocyon, Tapocyon, Patriomanis, Leptoreodon, Catopsalis, Eoconodon, Otarocyon, Adilophontes, Tinodon, Hypertragulus, Aletomeryx, Mimomys, Mixodectes, Batodon, Promartes, Protomarctus, Stygimys, Tanymykter, Phenacocoelus, Vulpes, Tamias, Arctodus, Perognathus, Camelops, Barylambda, Palaeocastor, Metamynodon, Hypohippus, Antilocapra, Batodonoides, Planetetherium, Ysengrinia, Bisonalveus, Cormocyon, Mesocyon, Altacreodus, Desmatippus, Ectopocynus, Haplolambda, Hemipsalodon, Osbornodon, Pyrocyon, Bootherium, Metatomarctus, Poabromylus, Pseudhipparion, Amphidon, Brachyhyops, Filikomys, Goniacodon, Hypsiops, Intyrictis, Proscalops, Aceroryctes, Parvitragulus, Notoparamys, Nototamias, Oklatheridium, Oreodontoides, Paracosoryx, Paressonodon, Parikimys, Lepus, Bison, Marmota, Spermophilus, Puma, Sorex, Sylvilagus, Dicrostonyx, Cryptotis, Alces, Oreamnos, Otospermophilus, Gobiconodon, Syndyoceras, Pseudaelurus, Psittacotherium, Taeniolabis, Eobasileus, Aphelops, Cephalogale, Protoceras, Protylopus, Eutamias, Hemiauchenia, Miotapirus, Amphechinus, Hypolagus, Palaearctonyx, Paratomarctus, Paurodon, Protohippus, Malfelis, Temnocyon, Trioracodon, Xenocranium, Caedocyon, Pelycodus, Poebrodon, Zodiolestes, Aploconodon, Atokatheridium, Dawsonicyon, Deltatheroides, Mammacyon, Nanocuris, Ramoceros, Tathiodon, Uintaceras, Aenocyon, Dipoides, Eucastor, Euthlastus, Hapalorestes, Heptacodon, Metarhinus, Valenopsalis, Acidomomys, Agnotocastor, Beornus, Bryceomys, Janumys, Krauseia, Michenia, Navajovius, Nexuotapirus, Perchoerus, Monosaulax, Tillodon, Xyronomys, Delotrochanter, Ustatochoerus · 401 more genera recorded.

Ancient fish & sharks (65 genera)

Archaeolamna, Archaeotriakis, Johnlongia, Helicoprion, Plicatoscyllium · 60 more genera recorded.

Ammonites & nautiloids (75 genera)

Baculites · 74 more genera recorded.

Trilobites & sea scorpions (4 genera)

Jaekelopterus · 3 more genera recorded.

Ediacaran & Cambrian life (92 genera)

Acuticarpus · 91 more genera recorded.

Fossil occurrences: Paleobiology Database (CC0 as reported by the API; CC BY 4.0 policy), downloaded 23 October 2026. Genus pages quote Wikipedia (CC BY-SA 4.0).