^Sereno, P.C.; Arcucci, A.B. (1990). “The monophyly of crurotarsal archosaurs and the origin of bird and crocodile ankle joints”. Neues Jahrbuch für Geologie und Paläontologie Abhandlungen. 180: 21–52.
^Sereno, Paul (1991). “Basal archosaurs: phylogenetic relationships and functional implications”. Journal of Vertebrate Paleontology. 11 (Suppl. 4): 1–51. doi:10.1080/02724634.1991.10011426.
^Gauthier, J. A.; Nesbitt, S. J.; Schachner, E. R.; Bever, G. S.; Joyce, W. G. (2011). “The bipedal stem-crocodilian Poposaurus gracilis: inferring function in fossils and innovation in archosaur locomotion”. Bulletin of the Peabody Museum of Natural History. 52: 107–126. doi:10.3374/014.052.0102.