Abstract: | More than 200 upper and lower jaws of ochotonid were found in the Late Oligocene of thenorthern part of the Junggar Basin,Xinjiang Uygur Autonomous Region,in the summer of1982.Sinolagomys.a unique Paleogene lagomorph with rootless(?) cheek teeth,was erected byBohlin(1937)based on the collections from Shargaltien and Taben-buluk,Gansu province.Upto now,it has been recorded from Middle Oligocene to the Lower Miocene of Gansu,Ninxia,Nei Mongol,and Xinjiang of China,and the Mongolian People's Republic. |