Jiutaisaurus (meaning "Jiutai lizard") is a genus of sauropod dinosaur from the Quantou Formation of Jilin, China. The formation dates from the Early - Late Cretaceous boundary. The type species, Jiutaisaurus xidiensis, was described by Wu et al. in 2006, and is based on eighteen vertebrae. It probably lived alongside Changchunsaurus and Helioceratops.
Jiutaisaurus (meaning "Jiutai lizard") is a genus of sauropod dinosaur from the Quantou Formation of Jilin, China. The formation dates from the Early - Late Cretaceous boundary. The type species, Jiutaisaurus xidiensis, was described by Wu et al. in 2006, and is based on eighteen vertebrae. It probably lived alongside Changchunsaurus and Helioceratops.
==Discovery and naming== In September 2003, a team from Jilin University conducted a fossil excavation in Xidi Village, Jiutai, and recovered 18 caudal vertebrae from a sauropod, as well as some other fossils. In March 2006, Wu Wenhao, Dong Zhiming, Sun Yuewu, Li Chuntian, and Li Tao described the vertebrae as a new genus and species, Jiutaisaurus xidiensis (), named for the discovery site.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).