Page:The Osteology of the Reptiles.pdf/210

192 The calcaneum of the Crocodilia (Fig. 157 ) is produced into a heel-like process; the first and fifth tarsalia and the centrale are absent, the second tarsale is small. Hallopus (Fig. 155 ), usually referred to the Dinosauria, also has a heel-like calcaneum, as is the case in Scleromochlus, and other genera of the Pseudosuchia, Araeoscelis (Fig. 155 ), Broomia (Fig. 137 ), and other leaping or springing reptiles.