. Catalogue of the fossil Reptilia and Amphibia in the British Museum (Natural history) ... By Richard Lydekker ... Reptiles, Fossil; Amphibians, Fossil. CHELONID^}. 45 41636. The imperfect cranium; from the London Clay (Lower (Fig.) Eocene) of the Isle of Sheppey. The type specimen ; figured by Owen in his ' Keptilia of the London Clay, &c/ vol. i. pt. i. pi. xv. The extremity of the beak and the supra- occipital region are wanting ; and the right quadrate and inferior temporal arcade are likewise broken away. The contour of the epidermal shields is very clearly displayed. The two parocci
. Catalogue of the fossil Reptilia and Amphibia in the British Museum (Natural history) ... By Richard Lydekker ... Reptiles, Fossil; Amphibians, Fossil. CHELONID^}. 45 41636. The imperfect cranium; from the London Clay (Lower (Fig.) Eocene) of the Isle of Sheppey. The type specimen ; figured by Owen in his ' Keptilia of the London Clay, &c/ vol. i. pt. i. pi. xv. The extremity of the beak and the supra- occipital region are wanting ; and the right quadrate and inferior temporal arcade are likewise broken away. The contour of the epidermal shields is very clearly displayed. The two paroccipital shields are in contact, so that the azygous paroccipital, if present, must evidently have been thrust back to the extremity of the supraoccipital, as is often found to be the case with Thalassochelys. The ectopterygoid processes are beautifully shown. Toulmin-Smith Collection. Purchased, 1869. Fig. 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
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