. Bulletin of the British Museum (Natural History), Geology. BRITISH WEALDEN SHARKS 299 Among the material from the Paddockhurst bone-bed (Grinstead Clay) complete teeth are rare, but small central cusps and incomplete teeth (Text-fig. 9a) are com- mon. Teeth of H. parvidens which agree with the typical forms from the Ashdown Beds and Wadhurst Clay occur, but are rather rare. In a sample of 37 teeth, four are typical low-crowned posterior teeth of H. parvidens, the other 33 are high- crowned forms. Of these 33 teeth, only three are striated to the tip of the central cusp (cf. 12 out of 24 in h
. Bulletin of the British Museum (Natural History), Geology. BRITISH WEALDEN SHARKS 299 Among the material from the Paddockhurst bone-bed (Grinstead Clay) complete teeth are rare, but small central cusps and incomplete teeth (Text-fig. 9a) are com- mon. Teeth of H. parvidens which agree with the typical forms from the Ashdown Beds and Wadhurst Clay occur, but are rather rare. In a sample of 37 teeth, four are typical low-crowned posterior teeth of H. parvidens, the other 33 are high- crowned forms. Of these 33 teeth, only three are striated to the tip of the central cusp (cf. 12 out of 24 in high-crowned teeth from Cliff End), and only three have an accessory cusp (cf. 15 out of 24 at Cliff End). The striae in these teeth also tend to be finer and more nrmierous than in typical H. 1 mm. 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). London : BM(NH)
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