Species: longshanensis RUMMY, WU, CLARK, ZHAO, JIN, SHIBATA, JIN & XU, 2022
Etymology: In reference to Longshan Hill, where the specimen was collected.
Holotype: YJDM 00009
Locality: A construction site between Baomei Mountain Villa Park and Longhedong, Yanji City, Jilin Province, China.
Horizon: Lingjing Formation.
Biostratigraphy:
Age: Albian Stage, Middle Glalic Subepoch, Late Early Cretaceous Epoch, Early Cretaceous-Cenomanian Stage, Late Gulf Epoch, Middle Cretaceous.
Material: A partial skull lacking most of the skull table, including isolated vertebrae, ribs, left scapula, right coracoid, right radius, left ulnare, right femur, right fibula, metatarsals and some dorsal osteoderms.