Coba jelasin Publikasi dari Gregory M. Erickson dong

Xu, Xing; Clark, James M; Forster, Catherine A; Norell, Mark A; Erickson, Gregory M; Eberth, David A; Jia, Chengkai & Zhao, Qi (9 February 2006). "A basal tyrannosauroid dinosaur from the Late Jurassic of China " Nature, 9: 715-718.