FIGURE 9 in The anatomy and diversity of the pterosaurian sternum

FIGURE 9. The sterna of the ctenochasmatoids A) Pterodactylus (traced from Wellnhofer, 1978), B) Cycnorhamphus (based on Wellnhofer, 1978), C) Ardeadactylus (based on Meyer, 1854) and D) Auroroazhdarcho (drawn from Frey et al., 2011). These are all seen in ventral view. Scale bars are A, B and G 10 mm, B 10 mm. No scalebar was given for C, but based on the published length of the wing phalanges in Wellnhofer, 1970 this would be c. 66 mm in diameter.