Omphalotrochidae Knight, 1945
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publication ID |
https://doi.org/ 10.5281/zenodo.13175834 |
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persistent identifier |
https://treatment.plazi.org/id/03BBE536-FF81-610A-FCA3-F968FEA8FB30 |
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treatment provided by |
Felipe |
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scientific name |
Omphalotrochidae Knight, 1945 |
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Family Omphalotrochidae Knight, 1945 View in CoL Genus Orecopia Knight, 1945
Type species: Orecopia mccoyi ( Walcott,1884) ;Frasnian,NorthAmerica.
Remarks.—Genus Orecopia Knight, 1945 is characterized by a trochiform, narrowly phaneromphalous shells with a wideroundedsinusontheupperpartofthelabrum.Thesimilar genus Omphalotrochus Meek, 1864 has a spiral ridge at the upper part of outer lip. Labrocuspis Heidecker, 1959 differs from Orecopia by its cryptomphalous base with a wide callus. Orecopia displays an archaeogastropod−type protoconch and cyrtoconoid teleoconch. Older whorls are sometime closed by septa.
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.