Tarbosaurus is a genus of tyrannosaurine theropod dinosaur that lived in Asia about 82 - 68 million years ago, during the Maastrichtian age at the end of the Late Cretaceous period, considered to contain a single known species: Tarbosaurus bataar. Fossils have been recovered from the Nemegt and Djadochta Formations of Mongolia, with more fragmentary remains found further afield in the Subashi Formation of China and the Jingangkou Formation of South Korea, along the South Korean Peninsula.
Tarbosaurus
Holotype skull PIN 551–1, Museum of Paleontology, Moscow
Specimen PIN 553–1, holotype of Gorgosaurus lancinator, in death pose
Tarbosaurus fossils that were smuggled to the US, and subsequently returned to Mongolia, at New York
Tyrannosaurinae is one of the two extinct subfamilies of Tyrannosauridae, a family of coelurosaurian theropods that consists of at least three tribes and several genera. All fossils of these genera have been found in the Late Cretaceous deposits of western North America and east Asia. Compared to the related subfamily Albertosaurinae, tyrannosaurines overall are more robust and larger though the alioramins were gracile by comparison. This subfamily also includes the oldest known tyrannosaurid genus Lythronax as well as the youngest and most famous member of the group, Tyrannosaurus rex. There were at least 30 different species of tyrannosaurines.
Image: Alioramus remotus Skull
Image: Tyrannosaurus rex theropod dinosaur (Hell Creek Formation, Upper Cretaceous; near Faith, northwestern South Dakota, USA) 2 (15157270200)
Deinodon teeth, the earliest known tyrannosaurid remains
Skeletal diagrams showing holotype remains of Lythronax (A) and a Teratophoneus specimen (B). N–P show selected bones of the former
