. 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. OPHTHALMOS A URUS. 59 of the bone, including the upper part of the trochanteric ridge, is covered by coarse rugosities, showing that there was an external cap of cartilage. From the head the shaft narrows rapidly, at the same time becoming compressed dorso-ventrally towards the distal expansion, which is relatively smaller than in the humerus. Distally the femur articulates with two bones only, the tibia (f.) and fibula (/!), t
. 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. OPHTHALMOS A URUS. 59 of the bone, including the upper part of the trochanteric ridge, is covered by coarse rugosities, showing that there was an external cap of cartilage. From the head the shaft narrows rapidly, at the same time becoming compressed dorso-ventrally towards the distal expansion, which is relatively smaller than in the humerus. Distally the femur articulates with two bones only, the tibia (f.) and fibula (/!), the facets for which are shown in text-fig. 41, D ( & f-f.). It will be seen in the specimen figured Text-fig. 40. Left ischio-pubis of Ojpliihalmosaurus (f nat. size) : A, from outer side; B, proximal end ; C, from inner side. acet,, acetabulum ; , facet for ilium ; isch., ischium ; , obturator foramen; pu., pubis; , ventral border. that the smaller of these two bones is the tibia and that it is irregularly oval in outline, articulating proximally with the femur, distally with the tibiale and intermedium, and postaxially with the fibula. In some other specimens the ossification of the anterior edge of the tibia is more extensive, so that the anterior border is sharp and slightly concave, and the whole bone as large as or larger than the fibula. This latter is roughly pentangular in shape ; it l2. 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
