[D] Jenghizkhan [sG]
Olshevsky vide Olshevsky, Ford & Yamamoto, 1995
Cretaceous Late Campanian Maastrichtian
Saurischia Theropoda Tyrannosauria Tyrannosauridae Tyrannosaurinae Tarbosaurini nov.
Jenghizkhan (Olshevsky vide Olshevsky, Ford & Yamamoto, 1995) > Jenghizkhan bataar (Maleev, 1955) >> Tyrannosaurus bataar (Maleev, 1955) Jenghizkhan > Jenghizkhan luanchuanensis (Dong, 1973) >> Tyrannosaurus luanchuanensis (Dong, 1979)
Latinized version of the name of the Mongol tyrant Genghis Khan, who ruled an empire extending from Europe to China during the late 12th and early 13th centuries A.D., in reference to the presumed ecological role of this dinosaur as the top predator of its domain.
Incomplete skull including both frontals, parietals, nasals, lacrimals, postorbitals, jugals, maxillae, and dentaries; maxillary and dentary teeth; occiput with partial braincase; and at least four associated vertebrae as described by Maleev, (1955).
Presently at the Paleontological Institute of the Russian Academy of Sciences in Moscow. Discovered on the 1946 (first) Russian Academy of Sciences paleontological expedition to Mongolia. The genus Jenghizkhan differs from other members of the paratribe Tarbosaurini in its larger size (overall adult length about 14 meters) and its massively constructed, rugose vertical skull elements, namely, the postorbital-jugal bar and lacrimal-jugal bar.
Jenghizkhan has the tallest neural arches relative to centrum diameter of any tarbosaurinid (ratio about 2:1 in Tarbosaurus efremovi holotype dorsal 4, but almost 3:1 in Jenghizkhan bataar holotype dorsal 4: even greater than in the corresponding element of Tyrannosaurus rex.