QIANG JI, MARK A. NORELL, PETER J. MAKOVICKY, KE-QIN GAO, SHU'AN JI, CHONGXI YUAN
American Museum Novitates 2003 (3420), 1-19, (29 October 2003) https://doi.org/10.1206/0003-0082(2003)420<0001:AEODAI>2.0.CO;2
A new ornithomimosaur from the Yixian Formation of Liaoning Province People's Republic of China is described. These beds are near the Jurassic-Cretaceous boundary. This specimen is interesting because it has several primitive characters for ornithomimosaurs such as teeth and a short first metacarpal. This taxon is placed in a phylogenetic analysis of Coelurosauria and shown to be near the base of the ornithomimosaur clade. Using this phylogeny we comment on the biogeographic history of this group.