Genus Cryptopora Jeffreys, 1869 |
[= Atretia Jeffreys 1870; Mannia Davidson, 1874; Neatretia Fischet & Œhlert, 1891; Crytopora Cooper, 1959] [Type species= Cryptopora gnonom = Atretia gnonom Jeffreys, 1869 (p. 136)] |
Small, translucent, subtrigonal to ovoid-lenticular, almost equibiconvex; rectimarginate to broadly sulcate, smooth; beak moderately long, pointed, nearly straight; foramen large, incomplete; deltidial plates auriculate, rudimentary, disjunct. Dental plates distinct, subvertical; cardinal process small and transverse; dorsal median septum high; crura digitate distally. |
lower Danian - Present
Diagnosis from volume 4 of the
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Extant Species of Cryptopora |
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Cryptopora gnomon Jeffreys, 1869 Type locality: No information on location in Jeffreys (1869) and Carpenter et al. (1869), but in Jeffreys (1876), this species has been sampled “during the 'Porcupine' expedition of 1869, in stations 20 [55°11'N, 11°31'W, 2639 m] and 30 [56°24'N, 11°49'W, 2524 m], at depths of 1443 ann 1380 fathoms, off the west coast of Ireland.” Cryptopora gnomon Jeffreys, 1869, p. 136 "Among the Mollusca were valves of an imperforate Brachiopod with a septum in the lower valve, which I propose to name Cryptopora gnomon. Some shells were of a tolerable size ;"
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