. Bulletin of the British Museum (Natural History), Geology. . 5mm 02 Fig. 15 Ovatathyris ovata (J. Sowerby). Fifteen transverse serial sections through 88764 from the Upper Greensand, Warminster, Wiltshire. Acutely ventrally concave hinge plates, from which strong inner and outer socket ridges arose, become progressively U-shaped anteriorly. The crural processes are long and slender, curving gently towards one another. A highly-arched transverse band of the brachial loop occurs at about 6-5 mm from the ventral umbo. HoLOTYPE. Sowerby Collection, B49840; from the Lower Chalk; Chute Farm, Wilts
. Bulletin of the British Museum (Natural History), Geology. . 5mm 02 Fig. 15 Ovatathyris ovata (J. Sowerby). Fifteen transverse serial sections through 88764 from the Upper Greensand, Warminster, Wiltshire. Acutely ventrally concave hinge plates, from which strong inner and outer socket ridges arose, become progressively U-shaped anteriorly. The crural processes are long and slender, curving gently towards one another. A highly-arched transverse band of the brachial loop occurs at about 6-5 mm from the ventral umbo. HoLOTYPE. Sowerby Collection, B49840; from the Lower Chalk; Chute Farm, 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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