Bivalvia - Cardiida - Tellinidae
Alternative spelling: Psammacoma
Parent taxon: Macoma according to E. J. Moore 2003
See also Coan et al. 2000, Gardner 1947, Kafanov and Ogasawara 2003, Perrilliat 1992, Sepkoski 2002, Todd 2001 and Woodring 1982
Sister taxa: Macoma (Austromacoma), Macoma (Bendemacoma), Macoma (Heteromacoma), Macoma (Macoma), Macoma (Macoploma), Macoma (Panacoma), Macoma (Rexithaerus), Macoma (Salmacoma), Macoma (Scissulina), Macoma albaria, Macoma astori, Macoma brota, Macoma constricta, Macoma costaricana, Macoma danai, Macoma edentula, Macoma elongata, Macoma fusca, Macoma inornata, Macoma kirkinskayae, Macoma lenis, Macoma limula, Macoma lissoni, Macoma marylandica, Macoma meroensis, Macoma montesanoensis, Macoma nasuta, Macoma osakaensis, Macoma pabloensis, Macoma simizuensis, Macoma snohomishensis, Macoma sookensis, Macoma tenta, Macoma tenuiplicata, Macoma tigilensis, Macoma uruguayensis, Macoma viticola, Macoma wilcoxi, Macoma wynootcheensis, Macoma yamadai
Subtaxa: Macoma (Psammacoma) arctata Macoma (Psammacoma) ecuadoriana Macoma (Psammacoma) korobkovi Macoma (Psammacoma) marmorea Macoma (Psammacoma) riopirabica Macoma (Psammacoma) siliqua Macoma (Psammacoma) talarensis Psammacoma (Psammacoma) Psammacoma candida Psammacoma carlottensis Psammacoma democraciana Psammacoma diphas Psammacoma gatunensis Psammacoma lamproleuca Psammacoma olivella Psammacoma panamensis Psammacoma tageliformis Psammacoma talaor Psammacoma torynoides Psammacoma zapotalensis
Type: Psammotaea candida
Distribution:
• Quaternary of Costa Rica (2 collections), Ecuador (3), Japan (1), Panama (1), United States (10: California, Florida, North Carolina), Venezuela (1)
• Pliocene of Colombia (3), Costa Rica (5), the Dominican Republic (1), Ecuador (2), Jamaica (2), Trinidad and Tobago (1), United States (4: Florida), Vanuatu (1), Venezuela (1)
• Miocene of Brazil (3), Colombia (19), the Dominican Republic (2), Ecuador (1), Mexico (4), Panama (72), Peru (2), the Russian Federation (2), Trinidad and Tobago (3), United States (45: California, Florida, Oregon, Washington), Venezuela (8)
• Oligocene of United States (12: California, Washington)
• Eocene of Peru (2)
Total: 213 collections including 220 occurrences