. Bulletin of the British Museum (Natural History), Geology. . Fig. 60 Camera lucida drawings of apical disc plating in: a, b, Holaster subglobosus; a, , Wilmington Limestone, Middle Cenomanian, and b, , Grey Chalk (Cenomanian) of Folk- stone, c, Holaster revestensis, ; 'Lower Greensand', basal Cenomanian, White Hart pit, Wilmington, 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

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. Bulletin of the British Museum (Natural History), Geology. . Fig. 60 Camera lucida drawings of apical disc plating in: a, b, Holaster subglobosus; a, , Wilmington Limestone, Middle Cenomanian, and b, , Grey Chalk (Cenomanian) of Folk- stone, c, Holaster revestensis, ; 'Lower Greensand', basal Cenomanian, White Hart pit, Wilmington, 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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