Tyrannosaurus is a genus of tyrannosaurid theropod dinosaur. The species Tyrannosaurus rex, often called T. rex or colloquially T-Rex, is one of the best represented of these large theropods.
Allosaurus is a genus of large carnosaurian theropod dinosaur that lived 155 to 145 million years ago during the Late Jurassic epoch. The name "Allosaurus" means "different lizard" alluding to its unique concave vertebrae.
Velociraptor is a genus of dromaeosaurid theropod dinosaur that lived approximately 75 to 71 million years ago during the latter part of the Cretaceous Period.
Aachenosaurus Abelisaurus Abrosaurus Abydosaurus Acanthopholis Achillesaurus Achillobator Acristavus Pyroraptor, Sinocoelurus Wyleyia Kerberosaurus Diplodocus Spinosuchus Teyuwasu Genyodectes. Maleevosaurus Griphornis Glyptodontopelta Minotaurasaurus Asylosaurus Teinurosaurus Achillobator Fusuisaurus, Talos Guanlong Baotianmansaurus Megaraptor Astrodon Zupaysaurus, Augustia Psittacosaurus Sauraechinodon Macrogryphosaurus Triassolestes Megalosaurus. Ornithopsis Kaijiangosaurus Baurutitan Nurosaurus Spinophorosaurus Eupodosaurus Eolosaurus Mapusaurus Pleurocoelus Saurophaganax Garudimimus, Leipsanosaurus Baotianmansaurus Dryptosauroides Venaticosuchus Sinoceratops Mantellisaurus Appalachiosaurus Xiaosaurus Postosuchus. Saltopus Kayentavenator Wellnhoferia Eobrontosaurus Haplocheirus Mymoorapelta Eomamenchisaurus Eucercosaurus, Cheasmosaurus Microraptor Dystrophaeus Epachthosaurus Adasaurus Bolong Brachytrachelopan Angaturama, Cetiosaurus Owenodon Ganzhousaurus Unquillosaurus Laevisuchus Gorgosaurus. Geminiraptor Parksosaurus Levnesovia Malawisaurus Piveteausaurus Syntarsus, Bonitasaura Melanorosaurus Claorhynchus Majungatholus Megaraptor Cylindricodon, Microceratops Nanotyrannus Australovenator Hesperosaurus. Linhraptor Altirhinus Alectrosaurus Koreanosaurus Shantungosaurus Stegopelta, Styracosaurus Muttaburrasaurus Dravidosaurus Asylosaurus, Orosaurus Aeolosaurus Szechuanosaurus Sahaliyania. Silvisaurus Gallimimus Albertaceratops Gracilisuchus Dromiceiomimus Limusaurus Cryptosaurus Cedarpelta Agujaceratops, Gryphoceratops Dacentrurus Niobrarasaurus Coronosaurus Basutodon Ultrasauros Liliensternus Thecodontosaurus, Quaesitosaurus Ganzhousaurus Malawisaurus Cladeiodon Maiasaura Tanystrosuchus Aviatyrannis. Glacialisaurus Rapator Ampelosaurus Coronosaurus Kuszholia Haplocheirus Gryphoceratops Turanoceratops Monolophosaurus, Trinisaura Pinacosaurus Sauroniops Genusaurus Latirhinus Gigantoscelus Siamotyrannus.
As far as we know dinosaurs have been evolved from dogs and horses into enormous creatures of which we call dinosaurs. They came to be around 240 - 230 million years, Dinosaurs had an extreme change on the world until were wiped out, it's never been completely confirmed but from what people say the dinosaurs were killed during this catastrophic incident
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