Dinosaurs are a diverse group ofreptiles that were the dominant terrestrial vertebrates for over 160 million years, from the lateTriassic period (about 230 million years ago) until the end of theCretaceous (about 66 million years ago). The extinction of most dinosaur species occurred during the Cretaceous–Tertiary extinction event. The fossil record indicates that birds evolved from theropod dinosaurs during the Jurassic period. Some of them survived the Cretaceous–Tertiary extinction event, including the ancestors of all modern birds. Consequently, in modern classification systems, birds are considered a type of dinosaur as they are related to raptors etc.— the only group of which that survives until the present day, dinosaurs became extinct as a giant asteroid (meteor) fell on earth 66-65 million years ago

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  Triceratops skeleton.
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  Allosaurus skeleton.
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  Allosaurus fossil skull.
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  Velociraptor skeleton.
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  Brachiosaurus, Berlin Naturkundemuseum.
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  Tyrannosaurus (named "Sue"), FMNH.
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  FightingProtoceratops andVelociraptor.
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  Stegosaurus vs.Allosaurus, Denver Museum of Nature and Science.
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  Gargoyleosaurus, Denver Museum of Nature and Science.
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  Compsognathus fossil.
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  Microraptor, with preserved feathers.
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  Bambiraptor.
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  Oviraptor.
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  Triceratops skeleton.
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  Rhabdodon
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  Oviraptorosauria
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  Tarbosaurus & Saurolophus
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  T-rex
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  Oviraptor
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  Ceratosaurus & Dryosaurus
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  Tyrannosaurus rex
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  Triceratops
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  Camarasaurus

See more:Category:Dinosaur skulls

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  Eggs of dinosaur in Museum of Earth in Kletno (Lower Silesia, Poland)
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  Fossilized dinosaur eggs in the Museum of National History in Ulaanbaatar
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  Clutch of round eggs namedOolithes spheroides, Location: Senckenberg-Museum, Frankfurt am Main

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  Heterodontosaurus.
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  Edmontonia.
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  Psittacosaurus.
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  Albertosaurus.
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  Vulcanodon.
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  K-PG boundary

• Dinosauria
• Gallery pages of reptiles