. Catalogue of the fossil Reptilia and Amphibia in the British Museum (Natural history) ... By Richard Lydekker ... Reptiles, Fossil; Amphibians, Fossil. Chelonian humeri.—The specimens belong to the left side, and are viewed from the dorsal aspect; all being reduced. A. Genus non. det., from the Kimeridge Clay. f. B. Chelys fimbriata, recent. C. Testudo sp., recent, g, head ; h, radial process; i, ulnar process; e, ectepicondylar canal. into a foramen ; limbs variable, being adapted either for walking on land, or webbed, or modified into paddles ; in the latter case no hyperphalangism. It may
. Catalogue of the fossil Reptilia and Amphibia in the British Museum (Natural history) ... By Richard Lydekker ... Reptiles, Fossil; Amphibians, Fossil. Chelonian humeri.—The specimens belong to the left side, and are viewed from the dorsal aspect; all being reduced. A. Genus non. det., from the Kimeridge Clay. f. B. Chelys fimbriata, recent. C. Testudo sp., recent, g, head ; h, radial process; i, ulnar process; e, ectepicondylar canal. into a foramen ; limbs variable, being adapted either for walking on land, or webbed, or modified into paddles ; in the latter case no hyperphalangism. It may be observed that the humerus of existing Chelonia is always characterized by its extremely prominent and subglobular head, but that in certain Mesozoic forms (fig. 1, A) the develop- ment of the head is much less marked, and the bone departs less widely irom a more normal type. It appears from these Jurassic forms that the radial process (fig. 1, h) corresponds with the deltoid Possibly present in 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; Lydekker, Richard, 1849-1915. London, Printed by order of the Trustees
Size: 979px × 2553px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlydekkerrichard184919, bookcentury1800, bookdecade1880
