Ulughbegsaurus (meaning "Ulugh Beg's lizard") is an extinct genus of carcharodontosaurid theropod dinosaurs from the Late Cretaceous Bissekty Formation (Turonian age) and Khodzhakul Formation (Cenomanian age) of Uzbekistan. The genus contains a single species, Ulughbegsaurus uzbekistanensis, known from multiple maxilla fragments.
Ulughbegsaurus (meaning "Ulugh Beg's lizard") is an extinct genus of carcharodontosaurid theropod dinosaurs from the Late Cretaceous Bissekty Formation (Turonian age) and Khodzhakul Formation (Cenomanian age) of Uzbekistan. The genus contains a single species, Ulughbegsaurus uzbekistanensis, known from multiple maxilla fragments.
== Discovery and naming == The Ulughbegsaurus fossil material was discovered in the Bissekty Formation, Uzbekistan in the 1980s. The holotype specimen, UzSGM 11-01-02, consists of a partial left maxilla. This specimen remained in the collection of the State Geological Museum of the State Committee of the Republic of Uzbekistan on Geology and Mineral Resources, Tashkent, Uzbekistan, until 2019, when it was rediscovered. Two additional specimens have been referred to the genus, including CCMGE 600/12457, the jugal ramus of a left maxilla that was previously referred to the dromaeosaurid Itemirus, and ZIN PH 357/16, the posterior end of a right maxilla.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).