. Bulletin of the British Museum (Natural History). . 167 166b 168 Figs 159-163 Cooperea siphonata (Cooper, 1956) gen. nov., from Pratt Ferry Formation (Llandeilo), SE of Pratt Ferry, Blocton, Alabama, USA. Fig. 159, interior of pedicle valve, BC 10303, x 10; Fig. 160, interior of brachial valve, BC 10305, x 10; Fig. 161, dorsal and ventral views of a pair of conjoined valves, BC 10302, x 10; Fig. 162, pair of conjoined valves, holotype, the original of Cooper 1956: pi. 210, figs 17, 18, 21, 22, USNM 117470a, x 10; Fig. 163, interior of brachial valve, the original of Cooper 1956: pi
. Bulletin of the British Museum (Natural History). . 167 166b 168 Figs 159-163 Cooperea siphonata (Cooper, 1956) gen. nov., from Pratt Ferry Formation (Llandeilo), SE of Pratt Ferry, Blocton, Alabama, USA. Fig. 159, interior of pedicle valve, BC 10303, x 10; Fig. 160, interior of brachial valve, BC 10305, x 10; Fig. 161, dorsal and ventral views of a pair of conjoined valves, BC 10302, x 10; Fig. 162, pair of conjoined valves, holotype, the original of Cooper 1956: pi. 210, figs 17, 18, 21, 22, USNM 117470a, x 10; Fig. 163, interior of brachial valve, the original of Cooper 1956: pi. 210, figs 23, 24, USNM 117470e, x 10. Figs 164, 165 Craspedelia marginata Cooper, 1956, from Pratt Ferry Formation (Llandeilo), SE of Pratt Ferry, Blocton, Alabama, USA. Fig. 164, external and internal views of a pedicle valve, BC 7300, x 8; Fig. 165, external, posterior and internal views of a brachial valve, BC 7301, x 8. Figs 166-168 Ptychoglyptus virginiensis Willard. 1928, from Pratt Ferry Formation (Llandeilo), SE of Pratt Ferry, Blocton, Alabama, USA. Fig. 166, dorsal and ventral views of a pair of conjoined valves, BC 10317, x 3; Fig. 167, brachial valve interior, BC 10316, x 3-5; Fig. 168, brachial valve interior, BC 10318, x 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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