Tham khảo Crurotarsi

  1. ↑ Nesbitt, S.J. (2011). “The early evolution of archosaurs: relationships and the origin of major clades” (PDF). Bulletin of the American Museum of Natural History 352: 1–292. doi:10.1206/352.1. 
  2. ↑ 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. 
  3. ↑ 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. 
  4. ↑ 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. 

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