Species: lingyuanensis GAO, TANG & WANG, 1999
Etymology: In reference to Lingyuan
Referred material:
BUFFETAUT, LI, TONG, & ZHANG, 2007
Locality: Wanfuotang, Yixian, Liaoning Province, China.
Horizon: Yixian Formation.
Biostratigraphy:
Age: Early Cretaceous.
Material:
SPM R10: Embryo.
Note: Mutation with two necks and heads.
SPM R13: Embryo.