Tropidocyathus Milne-Edwards & Haime, 1848
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https://dx.doi.org/10.3897/zookeys.1066.69697 |
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lsid:zoobank.org:pub:133CE040-A5AF-44F1-BC9A-558C2F06A8AA |
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https://treatment.plazi.org/id/70A1A5F1-8C26-4366-8896-0C5BB5BD1418 |
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Tropidocyathus Milne-Edwards & Haime, 1848 |
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Tropidocyathus Milne-Edwards & Haime, 1848
Diagnosis.
Corallum cuneiform, with rounded base and calice elliptical in cross section. Costae low, flat, and covered with small granules. Thecal edge costae expanded into alate edge crests and also uniformly granulated. Intercostal regions shallow, narrow, and not pitted. Higher cycle costae originate by trifurcation. Septa highly exsert and hexamerally arranged in four complete cycles. Lamellar pali in three crowns before all but last septal cycle. Each pair of P3 and single P2 in a system forming a chevron arrangement, but not fused. Columella papillose.
Type species.
Flabellum lessoni Michelin, 1842, by monotypy.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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