. Bulletin of the British Museum (Natural History), Geology. FROM GREAT BRITAIN AND FRANCE 251. Fig. 7. Gonyaulacysta angulosa sp. nov. a. General appearance and the archaeopyle formation of the holotype. Left, ventral view ; right, dorsal view. xc. 1280. b. Tabulation, xc. 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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