Therizinosauroidea (Dinosauria: Theropoda) from the Upper Cretaceous of Uzbekistan

摘要: Abstract Skeletal remains of indeterminate therizinosauroid dinosaurs are present in the Cenomanian Khodzhakul Formation and common Turonian Bissekty Uzbekistan. At least two taxa based on different frontal humerus morphotypes. Phylogenetic analysis a dataset with 348 morphological characters including all known therizinosaurian places as derived non-therizinosaurid therizinosauroids. The therizinosauroids more than Alxasaurus elesitaiensis extensive pneumatization postcranial axial skeleton, absence teeth anterior portion dentary, weak development or even pits for collateral ligaments manual phalanges, subtriangular medial aspect distal end humerus, entepicondyle positioned well to ulnar condyle. They less Therizinosauridae presence basisphenoid recess, pneumatic openings caudal vertebrae, metacarpal III not being ginglymoid dorsal view, separation femoral head from neck that bone by raised ventral rim.