Vesicomya (Calyptogena) Dall 1891

Bivalvia - Cardiida - Vesicomyidae

Alternative spelling: Calyptogena

Synonyms: Archivesica Dall 1908, Ectenagena Woodring 1938, Phraegena Woodring 1938, Phreagena Woodring 1938

Parent taxon: Vesicomya according to E. V. Coan et al. 2000

See also Kiel and Amano 2010 and Sepkoski 2002

Sister taxa: Vesicomya (Vesicomya), Vesicomya ramondi, Vesicomya tschudi

Subtaxa: Archivesica marincovichi Calyptogena (Calyptogena) Calyptogena katallaensis Vesicomya (Calyptogena) gibbera Vesicomya (Calyptogena) pacifica

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Type: Calyptogena pacifica

Distribution:

• Miocene of Japan (2 collections)

• Oligocene of the Russian Federation (1), United States (7: Alaska, Washington)

• Eocene of United States (4: Washington)

• Cretaceous of Japan (1)

Total: 15 collections each including a single occurrence

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