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Named after how the tail was found very close to mouth, in reference to the mythical serpent. Peck's Rex / Rigby's Rex / Montana's Rex: MOR 980 Museum of the Rockies: Tyrannosaurus: Late Cretaceous (Maastrichtian 68-66 million years ago) Hell Creek Formation: Named after Fort Peck which it was discovered close to. Pete III Cincinnati Museum ...
The arm bones of Deinocheirus were similar in proportions to those of the small theropod Compsognathus. [23] Though Deinocheirus was a bulky animal, its dorsal ribs were tall and relatively straight, indicating that the body was narrow. [8] The ten neck vertebrae were low and long, and progressively shorter backwards from the skull. This ...
The evolution of mammalian auditory ossicles was an evolutionary process that resulted in the formation of the mammalian middle ear, where the three middle ear bones or ossicles, namely the incus, malleus and stapes (a.k.a. "the anvil, hammer, and stirrup"), are a defining characteristic of mammals.
If Deinonychus had feathered fingers and wings, the feathers would have limited the range of motion of the forelimbs to some degree. For example, when Deinonychus extended its arm forward, the 'palm' of the hand automatically rotated to an upward-facing position. This would have caused one wing to block the other if both forelimbs were extended ...
Here the units are sorted by the number of genera that have been reported as being represented in their respective fossil yields. Since the creation or synonymy of genera can be subjective, the sorting of the units can only roughly approximate their known paleobiodiversities.
Apatosaurus (/ ə ˌ p æ t ə ˈ s ɔːr ə s /; [3] [4] meaning "deceptive lizard") is a genus of herbivorous sauropod dinosaur that lived in North America during the Late Jurassic period. Othniel Charles Marsh described and named the first-known species, A. ajax , in 1877, and a second species, A. louisae , was discovered and named by ...
Peking Man (Homo erectus pekinensis) is a subspecies of H. erectus which inhabited what is now northern China during the Middle Pleistocene.Its fossils have been found in a cave some 50 km (31 mi) southwest of Beijing (then referred to in the West as Peking), known as the Zhoukoudian Peking Man Site.
Since part of Wādī al-Ḥītān was made into a tourist venue, walkways between the main fossils have been laid out and small shelters built. This public park is now regularly visited by tourist groups, and a small camp site is present. The valley is located behind a mountain known as Garet Gohannam "the Mountain of Hell". In the light of the ...