. A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London ... Reptiles, Fossil. STENEOSAURUS. 115 the recent Crocodiles than is the case with the astragalus. It consists of a body which bears on its outer side a strongly convex surface for the fibula {); this is separated by a deep notch from the facet for the astragalus, which looks forwards and inwards. Distally there is a nearly flat surface () for articulation with the distal tarsal (cuboid). Posteriorly the bone is produced into a tuber calc
. A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London ... Reptiles, Fossil. STENEOSAURUS. 115 the recent Crocodiles than is the case with the astragalus. It consists of a body which bears on its outer side a strongly convex surface for the fibula {); this is separated by a deep notch from the facet for the astragalus, which looks forwards and inwards. Distally there is a nearly flat surface () for articulation with the distal tarsal (cuboid). Posteriorly the bone is produced into a tuber calcis (), the neck of which is narrowed, while distally it expands and bears a large roughened surface looking outwards and backwards. Text-fig. Left hind foot of Steneosaurus leedsi: A, dorsal surface of foot ; 13, proximal surface of astragalus and calcaneum ; C, distal surface of astragalus and calcaneum. (E. 3806, | nat. size.) a., astragalus ; c, calcaneum ; cub., cuboid ; , facet for cuboid ; //., facets for fibula ; , facet for metatarsal; , tuber calcis ; , facet for tibia ; I-V, metatarsals. Another small bone belonging to the hind foot seems to be the postaxial tarsal of the distal row {cuboid). On its proximal surface there is a facet for union with the calcaneum, while distally there is a convex surface divided by a low antero-posterior ridge, on either side of which there is a pit for a ligament. Posteriorly, the bone Q2. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). Dept. of Geology; Andrews, Charles William, 1866-1924. London, Printed by order of the Trustees
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectreptile, bookyear1910
