[D] Tarbosaurus bataar [Su] [sG] [T]
Cretaceous Late Campanian Maastrichtian
Saurischia Theropoda Tyrannosauria Tyrannosauridae
White Beds of Khermeen Tsav, Bayankhongor; (Nemegtskaya Svita), Nemegt Formation, Omnogov, Mongolia; Subashi Formation, Xinjiang, Uygur Zizhiqu, ?unamed unit Heilongjiang; Nanxiong Formation, China
Genus - typespecies - Skull
Tarbosaurus bataar (Maleev, 1955) = Tyrannosaurus bataar * (Maleev, 1955) > Tarbosaurus efremovi (Maleev, 1955) Gorgosaurus lancinator (Maleev, 1955) ? Albertosaurus periculosus (Riabinin, 1930) ?Tyrannosaurus turpanensis (Zhai, Zheng, & Tong, 1978) * Jenghizkhan (Olshevsky vide Olshevsky, Ford & Yamamoto, 1995)
\\\\\\\\\\\\\\\"Alarming reptile from Bataar\\\\\\\\\\\\\\\", a large tyrannosaurid first described in 1955. The remains of at least seven individuals were collected by the Palerontological Institute of the Academy of Sciences of the Sowjet Union. In addition, at last sixmore skeletons were collected during the Polisch-Mogolian expeditions.
Tarbosaurus was practically identical with Tyrannosaurus , although there are a few relatively minor differences in the structure of the skullbones that serve to distinguish the two forms. Apparently fully adult specimens never attained the size of the largest Tyrannosaurus specimens.
Despite the relatively enormous distance that separates Tyrannosaurus and Tarbosaurus geographically, it is very tempting to place them in the same genus: this would certainly have been done had the Tarbosaurus remains come from Canada.
(IGM 551-1) (11.0 m, ~6 tons) skull (~1.35 m), entary (551 mm), posterior cervical vertebrae, first four dorsal vertebrae Several large specimens are known, but none comparable to known Tyrannosaurus specimens. The largest described is the holotype. [M.Mortimer]