1869.]
HUXLEY—DINOSAURIA AND BIRDS.
27
Fig. 3.
Fig. 3. The pelvis and hind limb of an Emu (Dromæus) and a Crocodile (Crocodilus), for comparison with the diagrammatic restoration of the corresponding parts in an Iguanodontoid Dinosaurian. The bones of the Bird are in their natural position; in the Dinosaur it may be a question whether the metatarsus was so much raised; in the Crocodile the foot would, naturally, be flat upon the ground, and the thigh turned out nearly at right angles to the body. The letters have the same signification throughout; Il, ilium ; a, b, its anterior and posterior extremities; Is, ischium, Pb, pubis; Tr, trochanter of the femur of the Dinosaur; T, tibia; F, fibula; As, astragalus; Ca, calcaneum; 1, the distal division of the tarsus; I, II, III, IV, V, the digits.
