FossilRange
Country · Cretaceous / Jurassic / Triassic

Dinosaurs of United States

61 genera on this site have fossil records in United States (1st of 14 countries), from 1,736 records. 13 genera — Tenontosaurus, Apatosaurus, Diplodocus and Sauropelta and others — are known here and nowhere else in the data.

Genera found in United States

Records in this country; the last column shows how many countries each genus is recorded in.

GenusRecordsAgeGroupCountries
Triceratops14972.1–66 MaHorned dinosaurs2
Allosaurus137154.8–145 MaTheropods4
Camarasaurus134154.8–145 MaSauropodomorphs4
Stegosaurus83154.8–145 MaArmoured & plated dinosaurs3
Tenontosaurus83121.4–113.2 MaOrnithopodsOnly here
Tyrannosaurus7872.1–66 MaTheropods3
Apatosaurus67154.8–145 MaSauropodomorphsOnly here
Diplodocus66154.8–145 MaSauropodomorphsOnly here
Edmontosaurus6672.1–66 MaOrnithopods2
Saurornitholestes6483.6–66 MaTheropods5
Deinonychus46121.4–113.2 MaTheropods2
Troodon4383.6–66 MaTheropods4
Thescelosaurus4283.6–66 MaOrnithopods2
Camptosaurus40154.8–145 MaOrnithopods3
Alamosaurus3772.1–66 MaSauropodomorphs2
Sauropelta34121.4–113.2 MaArmoured & plated dinosaursOnly here
Nanosaurus32154.8–145 MaOrnithopodsOnly here
Pachycephalosaurus3272.1–66 MaDome-headed dinosaurs2
Coelophysis26205.7–192.9 MaTheropodsOnly here
Ornithomimus2483.6–66 MaTheropods2
Brontosaurus23149.2–145 MaSauropodomorphsOnly here
Kritosaurus2383.6–72.1 MaOrnithopods2
Scutellosaurus23199.5–192.9 MaArmoured & plated dinosaursOnly here
Stegoceras2383.6–72.1 MaDome-headed dinosaurs2
Dryosaurus21154.8–145 MaOrnithopods4
Ceratosaurus19154.8–145 MaTheropods4
Chirostenotes1983.6–66 MaTheropods2
Dromaeosaurus1983.6–66 MaTheropods4
Barosaurus18154.8–145 MaSauropodomorphs2
Brachiosaurus16154.8–145 MaSauropodomorphs4
Parasaurolophus1683.6–72.1 MaOrnithopods2
Hypacrosaurus1583.6–66 MaOrnithopods2
Acrocanthosaurus14121.4–113.2 MaTheropodsOnly here
Agujaceratops1483.6–72.1 MaHorned dinosaurs2
Coelurus14149.2–113.2 MaTheropodsOnly here
Pentaceratops1483.6–72.1 MaHorned dinosaursOnly here
Ankylosaurus1372.1–66 MaArmoured & plated dinosaurs2
Dilophosaurus13199.5–184.2 MaTheropods2
Dryptosaurus1383.6–66 MaTheropodsOnly here
Eolambia12100.5–93.9 MaOrnithopodsOnly here
Daspletosaurus1183.6–72.1 MaTheropods2
Edmontonia1183.6–66 MaArmoured & plated dinosaurs2
Torosaurus1072.1–66 MaHorned dinosaurs2
Gryposaurus9199.5–72.1 MaOrnithopods3
Panoplosaurus983.6–66 MaArmoured & plated dinosaurs2
Torvosaurus9154.8–145 MaTheropods6
Albertosaurus783.6–66 MaTheropods3
Monoclonius783.6–72.1 MaHorned dinosaurs2
Euoplocephalus683.6–72.1 MaArmoured & plated dinosaurs3
Gorgosaurus683.6–72.1 MaTheropods2
Struthiomimus683.6–66 MaTheropods2
Centrosaurus383.6–72.1 MaHorned dinosaurs2
Corythosaurus383.6–72.1 MaOrnithopods2
Prosaurolophus383.6–72.1 MaOrnithopods2
Dacentrurus2154.8–145 MaArmoured & plated dinosaurs5
Pachyrhinosaurus283.6–66 MaHorned dinosaurs2
Saurolophus272.1–66 MaOrnithopods3
Stenonychosaurus283.6–66 MaTheropods2
Chasmosaurus183.6–72.1 MaHorned dinosaurs2
Citipes183.6–72.1 MaTheropods2
Iguanodon1139.8–113.2 MaOrnithopods10

Through time

CoelophysisCoelophysis: 205.7–192.9 MaScutellosaurusScutellosaurus: 199.5–192.9 MaDilophosaurusDilophosaurus: 199.5–184.2 MaGryposaurusGryposaurus: 199.5–72.1 MaAllosaurusAllosaurus: 154.8–145 MaApatosaurusApatosaurus: 154.8–145 MaBarosaurusBarosaurus: 154.8–145 MaBrachiosaurusBrachiosaurus: 154.8–145 MaCamarasaurusCamarasaurus: 154.8–145 MaCamptosaurusCamptosaurus: 154.8–145 MaCeratosaurusCeratosaurus: 154.8–145 MaDacentrurusDacentrurus: 154.8–145 MaDiplodocusDiplodocus: 154.8–145 MaDryosaurusDryosaurus: 154.8–145 MaNanosaurusNanosaurus: 154.8–145 MaStegosaurusStegosaurus: 154.8–145 MaTorvosaurusTorvosaurus: 154.8–145 MaBrontosaurusBrontosaurus: 149.2–145 MaCoelurusCoelurus: 149.2–113.2 MaIguanodonIguanodon: 139.8–113.2 MaAcrocanthosaurusAcrocanthosaurus: 121.4–113.2 MaDeinonychusDeinonychus: 121.4–113.2 MaSauropeltaSauropelta: 121.4–113.2 MaTenontosaurusTenontosaurus: 121.4–113.2 MaEolambiaEolambia: 100.5–93.9 MaAgujaceratopsAgujaceratops: 83.6–72.1 MaCentrosaurusCentrosaurus: 83.6–72.1 MaChasmosaurusChasmosaurus: 83.6–72.1 MaCitipesCitipes: 83.6–72.1 MaCorythosaurusCorythosaurus: 83.6–72.1 MaDaspletosaurusDaspletosaurus: 83.6–72.1 MaEuoplocephalusEuoplocephalus: 83.6–72.1 MaGorgosaurusGorgosaurus: 83.6–72.1 MaKritosaurusKritosaurus: 83.6–72.1 MaMonocloniusMonoclonius: 83.6–72.1 MaParasaurolophusParasaurolophus: 83.6–72.1 MaPentaceratopsPentaceratops: 83.6–72.1 MaProsaurolophusProsaurolophus: 83.6–72.1 MaStegocerasStegoceras: 83.6–72.1 MaAlbertosaurusAlbertosaurus: 83.6–66 MaChirostenotesChirostenotes: 83.6–66 MaDromaeosaurusDromaeosaurus: 83.6–66 MaDryptosaurusDryptosaurus: 83.6–66 MaEdmontoniaEdmontonia: 83.6–66 MaHypacrosaurusHypacrosaurus: 83.6–66 MaOrnithomimusOrnithomimus: 83.6–66 MaPachyrhinosaurusPachyrhinosaurus: 83.6–66 MaPanoplosaurusPanoplosaurus: 83.6–66 MaSaurornitholestesSaurornitholestes: 83.6–66 MaStenonychosaurusStenonychosaurus: 83.6–66 MaStruthiomimusStruthiomimus: 83.6–66 MaThescelosaurusThescelosaurus: 83.6–66 MaTroodonTroodon: 83.6–66 MaAlamosaurusAlamosaurus: 72.1–66 MaAnkylosaurusAnkylosaurus: 72.1–66 MaEdmontosaurusEdmontosaurus: 72.1–66 MaPachycephalosaurusPachycephalosaurus: 72.1–66 MaSaurolophusSaurolophus: 72.1–66 MaTorosaurusTorosaurus: 72.1–66 MaTriceratopsTriceratops: 72.1–66 MaTyrannosaurusTyrannosaurus: 72.1–66 MaNorianToarcianAptianAlbianCampanian205.7199.5192.9184.2174.7168.2161.5154.8149.2139.8132.6125.8113.2100.593.986.372.166million years ago
CoelophysisCoelophysis: 205.7–192.9 MaScutellosaurusScutellosaurus: 199.5–192.9 MaDilophosaurusDilophosaurus: 199.5–184.2 MaGryposaurusGryposaurus: 199.5–72.1 MaAllosaurusAllosaurus: 154.8–145 MaApatosaurusApatosaurus: 154.8–145 MaBarosaurusBarosaurus: 154.8–145 MaBrachiosaurusBrachiosaurus: 154.8–145 MaCamarasaurusCamarasaurus: 154.8–145 MaCamptosaurusCamptosaurus: 154.8–145 MaCeratosaurusCeratosaurus: 154.8–145 MaDacentrurusDacentrurus: 154.8–145 MaDiplodocusDiplodocus: 154.8–145 MaDryosaurusDryosaurus: 154.8–145 MaNanosaurusNanosaurus: 154.8–145 MaStegosaurusStegosaurus: 154.8–145 MaTorvosaurusTorvosaurus: 154.8–145 MaBrontosaurusBrontosaurus: 149.2–145 MaCoelurusCoelurus: 149.2–113.2 MaIguanodonIguanodon: 139.8–113.2 MaAcrocanthosaurusAcrocanthosaurus: 121.4–113.2 MaDeinonychusDeinonychus: 121.4–113.2 MaSauropeltaSauropelta: 121.4–113.2 MaTenontosaurusTenontosaurus: 121.4–113.2 MaEolambiaEolambia: 100.5–93.9 MaAgujaceratopsAgujaceratops: 83.6–72.1 MaCentrosaurusCentrosaurus: 83.6–72.1 MaChasmosaurusChasmosaurus: 83.6–72.1 MaCitipesCitipes: 83.6–72.1 MaCorythosaurusCorythosaurus: 83.6–72.1 MaDaspletosaurusDaspletosaurus: 83.6–72.1 MaEuoplocephalusEuoplocephalus: 83.6–72.1 MaGorgosaurusGorgosaurus: 83.6–72.1 MaKritosaurusKritosaurus: 83.6–72.1 MaMonocloniusMonoclonius: 83.6–72.1 MaParasaurolophusParasaurolophus: 83.6–72.1 MaPentaceratopsPentaceratops: 83.6–72.1 MaProsaurolophusProsaurolophus: 83.6–72.1 MaStegocerasStegoceras: 83.6–72.1 MaAlbertosaurusAlbertosaurus: 83.6–66 MaChirostenotesChirostenotes: 83.6–66 MaDromaeosaurusDromaeosaurus: 83.6–66 MaDryptosaurusDryptosaurus: 83.6–66 MaEdmontoniaEdmontonia: 83.6–66 MaHypacrosaurusHypacrosaurus: 83.6–66 MaOrnithomimusOrnithomimus: 83.6–66 MaPachyrhinosaurusPachyrhinosaurus: 83.6–66 MaPanoplosaurusPanoplosaurus: 83.6–66 MaSaurornitholestesSaurornitholestes: 83.6–66 MaStenonychosaurusStenonychosaurus: 83.6–66 MaStruthiomimusStruthiomimus: 83.6–66 MaThescelosaurusThescelosaurus: 83.6–66 MaTroodonTroodon: 83.6–66 MaAlamosaurusAlamosaurus: 72.1–66 MaAnkylosaurusAnkylosaurus: 72.1–66 MaEdmontosaurusEdmontosaurus: 72.1–66 MaPachycephalosaurusPachycephalosaurus: 72.1–66 MaSaurolophusSaurolophus: 72.1–66 MaTorosaurusTorosaurus: 72.1–66 MaTriceratopsTriceratops: 72.1–66 MaTyrannosaurusTyrannosaurus: 72.1–66 Ma205.7174.7149.2125.8100.572.1million years ago

Fossil sites

Records with coordinates.

Top formations

Regions

  • Wyoming559
  • Montana373
  • Colorado203
  • New Mexico135
  • Utah129
  • South Dakota83