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Skeletal mount of the Tyrannosaurus holotype.. This timeline of tyrannosaur research is a chronological listing of events in the history of paleontology focused on the tyrannosaurs, a group of predatory theropod dinosaurs that began as small, long-armed bird-like creatures with elaborate cranial ornamentation but achieved apex predator status during the Late Cretaceous as their arms shrank and ...
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 ...
Later they would be recognized as dinosaur tracks. 1841 — Anatomist Richard Owen creates a new order of reptiles, dinosauria, for animals: Iguanodon, Megalosaurus, and Hylaeosaurus, found by Mantell and Buckland. 1841 — The first global geologic timescale is defined by John Phillips based on the type of fossils found in different rock layers.
The following outline is provided as an overview of and topical guide to dinosaurs: . Dinosaurs – diverse group of animals of the clade and superorder Dinosauria.They were the dominant terrestrial vertebrates for over 160 million years, from the late Triassic period (about in 1963) until the end of the Cretaceous (2000), when the Cretaceous–Paleogene extinction event led to the extinction ...
July 18: Did you know... that the dinosaur Lufengosaurus, whose remains were found in China, was the first dinosaur to appear on a commemorative postage stamp, in 1958? July 19th: User:MirkMeister joined the project. July 23: Diplodocus becomes a good article; July 23: Ankylosaurus becomes a good article. July 24: Tyrannosaurus becomes a ...
F. H. Khakimov discovered a new dinosaur track site in Shirkent National Park, Tajikistan. [25] Zakharov and Khakimov reported the dinosaur track site discovered by the latter to the scientific literature. [25] 1964. Zakharov described the new ichnogenus and species Macropodosaurus gravis. He attributed it to a theropod, but these tracks are ...
The Korea-Mongolia International Dinosaur Project discovered a new specimen of the mysterious Mongolian dinosaur Deinocheirus, specimen now catalogued as MPC-D 100/128. [15] This specimen had also been damaged by fossil poachers. [16] 2009. Buffetaut, Suteethorn, and Tong described the new genus and species Kinnareemimus khonkaenensis. [17]
Since the 1980s, major developments in ceratosaur taxonomy have centered on the discovery of the Abelisauridae, a new family of large ceratosaurs that were among the dominant predators of the southern hemisphere during the Cretaceous. [5] One of the most notable of these was Carnotaurus, an unusual horned theropod with a short face. [4]