Dinosaur
From Jurassic Park wiki
Dinosauria was the name of a group of Archosaurian reptiles that lived from the Mid Triassic Period (230 mya) to the Late Cretaceous Period (65 mya). Dinosaurs are arguably the most famous creatures ever to live on earth, first described as a group by anatomist Sir Richard Owen during a lecture in 1842, based on three species, Megalosaurus, Iguanodon, and Hylaeosaurus. Dinosauria now includes nearly a thousand species, hundreds of taxon, and around thirty families. Dinosaurs gained a huge popularity boost in 1993, with the release of the original Jurassic Park, and subsequent sequels every four years, with the exception of the fourth movie. The only dinosaurs left alive today are their direct descendants, the birds. Crocodilians are the only sister group alive of the dinosaurs. The closest extinct sister group were the pterosaurs.
