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Walking with Monsters – Life Before Dinosaurs, marketed as Before the Dinosaurs – Walking with Monsters in North America, is a 2005 three-part nature documentary television miniseries created by Impossible Pictures and produced by the BBC Studios Science Unit, [2] the Discovery Channel, ProSieben and France 3. [3]
Soon however, the marine reptiles, dinosaurs, and pterosaurs that dominated the planet went extinct, likely because a meteor impact destabilized the planet's ecosystems. [38] After the extinction of the dominant reptile groups, the Cenozoic [39] ushered in the Age of Mammals. [40]
The only recorded find of a dinosaur fossil in Central America consists of a single femur discovered from Middle Cretaceous age deposits in Comayagua Department in the central part of Honduras. The fossil had been found in January, 1971 by Bruce Simonson and Gregory Horne, though it was later sent to the National Museum of Natural History, USA ...
Dinosaurs evolved from more primitive reptiles in the aftermath of Earth's biggest mass-extinction event caused by extreme volcanism at the end of the Permian Period about 252 million years ago.
Named Gondwanax paraisensis, the four-legged reptile species was roughly the size of a small dog with a long tail, or about 1 meter (39 inches) long and weighing between 3 and 6 kg (7 to 13 pounds ...
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; List of dinosaurs of the Morrison ...
Sturgeon were America's vanishing dinosaurs, armor-plated beasts that crowded the nation's rivers until mankind's craving for caviar pushed them to the edge of extinction. More than a century ...
Dinosaur Tracks of Western North America. Columbia University Press. 1999. Lucas S, Herne M, Heckert A, Hunt A, and Sullivan R. Reappraisal of Seismosaurus, A Late Jurassic Sauropod Dinosaur from New Mexico. Archived 2019-10-08 at the Wayback Machine The Geological Society of America, 2004 Denver Annual Meeting (November 7–10, 2004 ...