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Mounted skeletons of Tyrannosaurus (left) and Apatosaurus (right) at the AMNH. Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research.
List of African dinosaurs; List of Asian dinosaurs; List of Australian and Antarctic dinosaurs; List of dinosaurs and other Mesozoic reptiles of New Zealand; List of European dinosaurs; List of Indian and Madagascan dinosaurs; List of North American dinosaurs. List of Appalachian dinosaurs; List of archosaurs of the Chinle Formation
While the dinosaurs' modern-day surviving avian lineage (birds) are generally small due to the constraints of flight, many prehistoric dinosaurs (non-avian and avian) were large-bodied—the largest sauropod dinosaurs are estimated to have reached lengths of 39.7 meters (130 feet) and heights of 18 m (59 ft) and were the largest land animals of ...
Its discovery helped researchers realize that dinosaurs were active, warm-blooded animals, kicking off the Dinosaur Renaissance: Denversaurus: 1988 Lance Formation (Late Cretaceous, Maastrichtian) United States ( South Dakota Wyoming) The youngest known nodosaurid [28] Diabloceratops: 2010 Wahweap Formation (Late Cretaceous, Campanian) United ...
Researchers have uncovered a "dinosaur highway" after hundreds of giant prehistoric footprints dating back 166 million years were found in an English quarry. ... still new evidence of these ...
The genus must appear on the List of dinosaur genera. At least one named species of the creature must have been found in South America . This list is a complement to Category:Mesozoic dinosaurs of South America .
The genus must appear on the List of dinosaur genera. At least one named species of the creature must have been found in Australia or Antarctica. This list is a complement to Category:Dinosaurs of Australia and Dinosaurs of Antarctica.
The Indian fossil record of dinosaurs is good, with fossils coming from the entire Mesozoic era – starting with the Triassic period (a geological period that started 251.9 million years ago and continued till 201.3 million years ago), to the Jurassic period (201 million years ago to 145 million years ago) and Cretaceous period (from 145 ...