Sereno, P. C. (2005). Stem Archosauria (页面存档备份,存于互联网档案馆). TaxonSearch [version 1.0, 2005 November 7]. Retrieved on 2009-08-18.
umd.edu
geol.umd.edu
Holtz, Thomas R. Jr. (2010) Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages,Winter 2010 Appendix. (页面存档备份,存于互联网档案馆)
Sereno, P. C. (2005). Stem Archosauria (页面存档备份,存于互联网档案馆). TaxonSearch [version 1.0, 2005 November 7]. Retrieved on 2009-08-18.
Holtz, Thomas R. Jr. (2010) Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages,Winter 2010 Appendix. (页面存档备份,存于互联网档案馆)