Subgenus: Retusa (Cylichnina) T.A. de M. Monterosato, 1884 (syn: Acrotrema - DB: 16 SP, 10 IMG)
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6800000020
Cylichnina
emoryi
(FOSSIL)
Gardner, 1935 †
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No Georeferenced data available
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6800000025
Cylichnina
petrosa
(FOSSIL)
(T.A. Conrad, 1849 †)
Oregon, Coos bay, Astoria formation 10 mm
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Subgenus: Retusa (Decorifer) T. Iredale, 1937 (DB: 2 SP, 0 IMG)
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5534100026
Decorifer
elisa
T. Iredale, 1937
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No Georeferenced data available
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Subgenus: Retusa (Semiretusa) K.H.J. Thiele, 1925 † (DB: 1 SP, 0 IMG)
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Genus: Sulcoretusa J.Q. Burch, 1945 (syn: Sulcularia, Sulcularia - DB: 5 SP, 2 IMG)
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Subgenus: Sulcoretusa (Moniloretusa) Sohl, 1963 † (DB: 1 SP, 0 IMG)
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Genus: Volvulopsis M.M. Schepman, 1913 (DB: 1 SP, 0 IMG)
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