The Bayin-Gobi Formation () (also known as Bayan Gobi, or Bayingebi Formation) is a geological formation in Inner Mongolia, north China, whose strata date back to Albian of the Early Cretaceous period. Dinosaur remains are among the fossils that have been recovered from the formation.

Fossil content

Dinosaurs

Ornithischians Ornithischians of the Bayin-Gobi FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage Bayannurosaurus B. perfectus Chulumiao Middle section of the upper half Nearly complete and semi-articulated skeleton A large styracosternan iguanodontian Penelopognathus P. weishampeli Qiriga Village Isolated right dentary A hadrosauroid ornithopod Ornithischia indet. Indeterminate Guaizihu Upper part A sacral rib and several partial caudal vertebrae An ornithischian with vertebral proportions similar to Psittacosaurus Psittacosaurus P. gobiensis Suhongtu Skull and skeletons of multiple specimens A psittacosaurid ceratopsian

Theropods Theropods of the Bayin-Gobi FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage Alxasaurus A. elesitaiensis Elesitai Village Partial skeletons of several specimens A therizinosauroid theropod Bannykus B. wulatensis Chaoge Partial and articulated skeleton lacking skull A alvarezsauroid theropod Dromaeosauridae indet. Indeterminate Balongwula Partial hindlimbs, isolated manual ungual, and ribs A dromaeosaurid theropod; possibly a microraptorine

See also

List of dinosaur-bearing rock formations

References