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Tarbosaurus-like articulations between the skull bones are also seen in Alioramus from Mongolia, suggesting that it is the closest relative of Tarbosaurus. Similarities between Tarbosaurus and Tyrannosaurus might be related to their large size, independently developed through convergent evolution. [2]
Human trichromatic color vision had its genetic origins in this period. Catarrhines lost the vomeronasal organ (or possibly reduced it to vestigial status). Proconsul was an early genus of catarrhine primates. They had a mixture of Old World monkey and ape characteristics.
Estimated size compared to a human. Zhuchengtyrannus was a large carnivorous theropod, and the holotype has been estimated to have been "similar in size and gross morphology to Tarbosaurus", [1] which is about 10 metres (33 ft) in body length and 5 metric tons (5.5 short tons) in body mass.
Tarbosaurus and Alioramus shared several skull features, including a locking mechanism in the lower jaw between the dentary and angular bones, and both lacked the prong of the nasal bones which connected to the lacrimal bones in all other tyrannosaurids except adult Daspletosaurus. The two genera may be closely related, representing an Asian ...
Human taxonomy is the classification of the human species within zoological taxonomy. The systematic genus , Homo , is designed to include both anatomically modern humans and extinct varieties of archaic humans .
These genera, however are controversial as the remains of these animals are immature or juvenile individuals. With the possible exception of Raptorex, [17] it is widely assumed that the Asian specimens are early growth stages of Tarbosaurus, [18] [19] [20] whereas the North American specimens are those of Tyrannosaurus. [21] [22]
Deinocheirus (/ ˌ d aɪ n oʊ ˈ k aɪ r ə s / DY-no-KY-rəs) is a genus of large ornithomimosaur that lived during the Late Cretaceous around 70 million years ago. In 1965, a pair of large arms, shoulder girdles, and a few other bones of a new dinosaur were first discovered in the Nemegt Formation of Mongolia.
The nuchal crest was especially well-developed in Tyrannosaurus, Tarbosaurus and Alioramus. Albertosaurus, Daspletosaurus and Gorgosaurus had tall crests in front of the eyes on the lacrimal bones, while Tarbosaurus and Tyrannosaurus had extremely thickened postorbital bones forming crescent-shaped crests behind the eyes.