by LINDSAY, EVERETT, MOU, YUN, DOWNS, WILL, PEDERSON, JOEL, KELLY, THOMAS S, HENRY, CHRIS, TREXLER, JIM
Published in Journal of vertebrate paleontology (08.07.2002)

by Lindsay, Everett, Mou, Yun, Downs, Will, Pederson, Joel, Kelly, Thomas S., Henry, Chris, Trexler, Jim
Published in Journal of vertebrate paleontology (08.07.2002)

by Phil Trexler and Jim Carney
Published in McClatchy - Tribune News Service (24.06.2007)