. 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. 98 MAKINE EEPTILES OF THE OXEOED CLAY. The pedicle of the neural arch rises from a long hase which extends the whole length of the centrum, and posteriorly may even form a small portion of the edge of the articular surface for the succeeding vertebra. Above the neuro-central suture the anterior and posterior borders are notched to allow of the passage of the spinal nerves ; the posterior notching is the deeper. The transverse p
. 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. 98 MAKINE EEPTILES OF THE OXEOED CLAY. The pedicle of the neural arch rises from a long hase which extends the whole length of the centrum, and posteriorly may even form a small portion of the edge of the articular surface for the succeeding vertebra. Above the neuro-central suture the anterior and posterior borders are notched to allow of the passage of the spinal nerves ; the posterior notching is the deeper. The transverse process (), which in this region bears the articular surfaces for both the head and tubercle of the rib, is borne entirely on the neural arch, and is lower down in the anterior dorsals than it is further back. In the first dorsal, although the two articular processes for the rib are borne Text-fig. Dorsal vertebra of Steneosaurus durobrivensis : A, middle dorsal from the front; C, the same from the left side ; B, anterior dorsal from left side. (E. 3701, g nat. size.) , anterior zygapophysis ; dp., diapophysial process ; , neural spine ; pp., parapophysial process ; , posterior zygapophysis. on a common base, they are still distinctly separated from one another by a deep groove ; the parapophysis (pp.) is situated in front of and below the diapophysis (dp.), which is much the longer of the two and is directed a little upwards and backwards. At the same time it is slightly curved, the convexity being dorsal; the rib-facets of both the para- and diapophyses are flat or somewhat convex. As it is followed back in the. 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 Tr
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectreptile, bookyear1910
