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Dinosaurs were the dominant terrestrial vertebrates of the Mesozoic Era, especially the Jurassic and Cretaceous periods.
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Michael Benton classifies all dinosaurs within the Series Amniota, Class Sauropsida, Subclass Diapsida, Infraclass Archosauromorpha, Division Archosauria, Subdivision Avemetatarsalia, Infradivision Ornithodira, and Superorder Dinosauria.
Tyrannosaurus (/ tɪˌrænəˈsɔːrəs, taɪ -/) [ a ] is a genus of large theropod dinosaur. The type species Tyrannosaurus rex (rex meaning 'king' in Latin), often shortened to T. rex or colloquially T-Rex, is one of the best represented theropods.
Dinosaurs are a group of Archosaur reptiles of the clade Dinosauria. [1] Dinosaurs eventually gave rise to birds. Dinosaurs were the most powerful land animals of the Mesozoic era. Over 500 different genera of dinosaurs are known. [2] Fossils of dinosaurs have been found on every continent.
Dinosaur, the common name given to a group of reptiles, often very large, that first appeared roughly 245 million years ago and thrived worldwide for nearly 180 million years. Most died out by the end of the Cretaceous Period.
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Dinosaur - Extinction, Fossils, Evolution: Dinosaurs lived in many kinds of terrestrial environments, and although some remains, such as footprints, indicate where dinosaurs actually lived, their bones tell us only where they died.
Tyrannosaurus (pronounced /tɨˌrænəˈsɔːrəs/ or /taɪˌrænoʊˈsɔːrəs/, meaning 'tyrant lizard') is a genus of theropod dinosaur.
Dinosaurs are a group of extinct reptiles that were the dominant animals for over 160 million years. They lived during the Middle Triassic to the Late Cretaceous, at which point most disappeared, 66 million years ago.