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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]
United States v. One Tyrannosaurus Bataar Skeleton (1:13−cv−00857) is a 2013 United States District Court for the Southern District of New York judgment regarding a requested order from the United States government to seize an imported Mongolian Tarbosaurus (referred to as a Tyrannosaurus bataar in the case title) skeleton related to smuggling law and the applicability of Mongolian law in ...
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.
Tyrannosaurus, Tarbosaurus, and Daspletosaurus had skulls that exceeded 1 m (3.3 ft) in length. [12] Adult tyrannosaurids had tall, massive skulls, with many bones fused and reinforced for strength. At the same time, hollow chambers within many skull bones and large openings ( fenestrae ) between those bones helped to reduce skull weight.
The holotype was named as Tyrannosaurus bataar by Evgeny Maleev as Tyrannosaurus bataar. [7] The genus Tarbosaurus was also described in the same year based on PIN 551–2, a specimen with a skull and skeletal remains discovered by the same expedition in 1948 and 1949 as Tarbosaurus efremovi. [8]
[13] [10] Many researchers believe Tarbosaurus and Tyrannosaurus to be sister taxa or even to be the same genus, with Daspletosaurus a more basal relative. [10] [37] On the other hand, Phil Currie and colleagues find Daspletosaurus to be more closely related to Tarbosaurus and other Asian tyrannosaurids like Alioramus than to the North American ...
Philip J. Currie suggested that Tyrannosaurus may have been pack hunters, comparing T. rex to related species Tarbosaurus bataar and Albertosaurus sarcophagus, citing fossil evidence that may indicate gregarious (describing animals that travel in herds or packs) behavior. [194]
After picking its victim, the T-rex charges, but the Triceratops finds it just in time and turns away to face the hungry killer. The T-rex seizes the horn of the Triceratops and breaks it off. The herbivore tries to retreat again, but the T-rex chomps on his frill. After making a loud charge, the Triceratops slashes one of his horns into the T ...