Fig. 22 in The Early Evolution Of Archosaurs: Relationships And The Origin Of Major Clades

Fig. 22. Archosaur ectopterygoids: A, the right ectopterygoid of Postosuchus kirkpatricki (TTU-P 9002) in dorsal view; B, the left ectopterygoid of Allosaurus fragilis (AMNH FR 600) in dorsal and C, ventral view; D, the left ectopterygoid of Plateosaurus engelhardti (AMNH FR 6810) in posterodorsal and ventral E, view. Arrow indicates anterior direction. Numbers refer to character states. See appendix for anatomical abbreviations. Scale bars 5 1 cm.