FossilRange
Dinosaur range chart · Paleobiology Database

Every dinosaur genus,
placed in deep time.

When 99 well-known dinosaur genera lived, the rock formations and countries their fossils come from, and the other dinosaurs found in the same quarries — counted from 3,645 fossil records.

Popular: Tyrannosaurus Triceratops Stegosaurus Velociraptor Spinosaurus Brachiosaurus Diplodocus Allosaurus

The 40 best-recorded genera, oldest first

Full timeline of 99 →
PlateosaurusPlateosaurus: 205.7–201.4 MaMassospondylusMassospondylus: 199.5–192.9 MaGryposaurusGryposaurus: 199.5–72.1 MaCetiosaurusCetiosaurus: 168.2–125.77 MaMegalosaurusMegalosaurus: 168.2–113.2 MaAllosaurusAllosaurus: 154.8–145 MaApatosaurusApatosaurus: 154.8–145 MaCamarasaurusCamarasaurus: 154.8–145 MaCamptosaurusCamptosaurus: 154.8–145 MaDacentrurusDacentrurus: 154.8–145 MaDiplodocusDiplodocus: 154.8–145 MaGiraffatitanGiraffatitan: 154.8–145 MaNanosaurusNanosaurus: 154.8–145 MaStegosaurusStegosaurus: 154.8–145 MaIguanodonIguanodon: 139.8–113.2 MaPsittacosaurusPsittacosaurus: 125.77–100.5 MaDeinonychusDeinonychus: 121.4–113.2 MaSauropeltaSauropelta: 121.4–113.2 MaTenontosaurusTenontosaurus: 121.4–113.2 MaCarcharodontosaurusCarcharodontosaurus: 121.4–93.9 MaSpinosaurusSpinosaurus: 100.5–93.9 MaCentrosaurusCentrosaurus: 83.6–72.1 MaProtoceratopsProtoceratops: 83.6–72.1 MaStegocerasStegoceras: 83.6–72.1 MaAlbertosaurusAlbertosaurus: 83.6–66 MaDromaeosaurusDromaeosaurus: 83.6–66 MaHypacrosaurusHypacrosaurus: 83.6–66 MaOrnithomimusOrnithomimus: 83.6–66 MaRhabdodonRhabdodon: 83.6–66 MaSaurornitholestesSaurornitholestes: 83.6–66 MaThescelosaurusThescelosaurus: 83.6–66 MaTroodonTroodon: 83.6–66 MaZalmoxesZalmoxes: 83.6–66 MaAlamosaurusAlamosaurus: 72.1–66 MaEdmontosaurusEdmontosaurus: 72.1–66 MaPachycephalosaurusPachycephalosaurus: 72.1–66 MaSaurolophusSaurolophus: 72.1–66 MaTarbosaurusTarbosaurus: 72.1–66 MaTriceratopsTriceratops: 72.1–66 MaTyrannosaurusTyrannosaurus: 72.1–66 MaTriassicJurassicCretaceousMiddleLateEarlyMiddleLateEarlyLate251.9 Ma201.4 Ma145 Ma100.5 Ma66 Ma
MassospondylusMassospondylus: 199.5–192.9 MaMegalosaurusMegalosaurus: 168.2–113.2 MaAllosaurusAllosaurus: 154.8–145 MaApatosaurusApatosaurus: 154.8–145 MaCamarasaurusCamarasaurus: 154.8–145 MaDiplodocusDiplodocus: 154.8–145 MaStegosaurusStegosaurus: 154.8–145 MaIguanodonIguanodon: 139.8–113.2 MaPsittacosaurusPsittacosaurus: 125.77–100.5 MaTenontosaurusTenontosaurus: 121.4–113.2 MaCentrosaurusCentrosaurus: 83.6–72.1 MaSaurornitholestesSaurornitholestes: 83.6–66 MaThescelosaurusThescelosaurus: 83.6–66 MaTroodonTroodon: 83.6–66 MaEdmontosaurusEdmontosaurus: 72.1–66 MaTarbosaurusTarbosaurus: 72.1–66 MaTriceratopsTriceratops: 72.1–66 MaTyrannosaurusTyrannosaurus: 72.1–66 MaTriassicJurassicCretaceousLateEarlyLate251.9 Ma201.4 Ma145 Ma66 Ma

By geological period

A genus that spans a boundary counts in both periods.

Triassic3genera · 251.9–201.4 MaJurassic32genera · 201.4–145 MaCretaceous70genera · 145–66 Ma

Formations with the most genera

Distinct genera on this site recorded in each formation.

All 57 formations →

Countries with the most genera

Genera with at least one fossil record in the country.

All 23 countries →

Most-recorded dinosaurs

Fossil records (occurrences) in the Paleobiology Database for each genus, including its junior synonyms.

GenusAgeStageGroupRecords
Triceratops72.1–66 MaMaastrichtianHorned dinosaurs166
Saurornitholestes83.6–66 MaCampanian–MaastrichtianTheropods148
Allosaurus154.8–145 MaKimmeridgian–TithonianTheropods147
Camarasaurus154.8–145 MaKimmeridgian–TithonianSauropodomorphs138
Iguanodon139.8–113.2 MaValanginian–AptianOrnithopods133
Troodon83.6–66 MaCampanian–MaastrichtianTheropods103
Stegosaurus154.8–145 MaKimmeridgian–TithonianArmoured & plated dinosaurs86
Edmontosaurus72.1–66 MaMaastrichtianOrnithopods85
Tyrannosaurus72.1–66 MaMaastrichtianTheropods85
Tenontosaurus121.4–113.2 MaAptianOrnithopods83
Massospondylus199.5–192.9 MaSinemurianSauropodomorphs80
Psittacosaurus125.77–100.5 MaBarremian–AlbianHorned dinosaurs70
Apatosaurus154.8–145 MaKimmeridgian–TithonianSauropodomorphs67
Diplodocus154.8–145 MaKimmeridgian–TithonianSauropodomorphs66
Megalosaurus168.2–113.2 MaBathonian–AptianTheropods60

More rankings →

Six groups of dinosaurs

TheropodsTwo-legged, mostly meat-eating dinosaurs.32 genera · 1,251 recordsSauropodomorphsLong-necked plant-eaters and their early relatives.19 genera · 704 recordsOrnithopodsBeaked plant-eaters, including the duck-billed hadrosaurs.21 genera · 813 recordsHorned dinosaursBeaked plant-eaters with frills and, in many, horns.11 genera · 441 recordsDome-headed dinosaursPlant-eaters with thickened, domed skulls.2 genera · 80 recordsArmoured & plated dinosaursPlant-eaters protected by bony plates, spikes or armour.14 genera · 356 records