OCR Text |
Show 242 DR. A. S. WOODWARD ON THE [Apr. 18, length assigned to them in text-fig. 39 (p. 233) is hypothetical. The massive triangular distal end of the tibia bears the decaye remains of the large astragalus still in direct contact, but the tarsus is otherwise lost. Most of the bones of the foot aie preserved, but they were discovered in a scattered condition and have only been hypothetically arranged on the plan of the known Text-fig. 49. Cetiosaurus leedsi.- Left femur, posterior aspect: A, upper end ; B, C, transverse sections of shaft; and D, lower end. About nat. size. feet of Diplodocus and Brontosaurus. The innermost digit is the stoutest and its large claw is present, while the two outer toes are comparatively small. It may be regarded as certain, indeed, that Cetiosaurus resembles the other known Sauropoda in having an " entaxonic" foot approaching that of some of the giant Ground - Sloths-the three inner toes being well developed and clawed, the two outer toes being rudimentary. |