Alternative spelling: Obliquarca
Parent taxon: Barbatia according to J. A. Todd 2001
See also Reinhart 1943 and Woodring 1925
Sister taxa: Arca (Barbatia) gracilicostata, Arca (Barbatia) nanggulanensis, Arca (Barbatia) oostinghi, Arca (Barbatia) tenuicrenata, Barbatia (Barbatia), Barbatia (Cucullaearca), Barbatia (Diluvarca), Barbatia (Granoarca), Barbatia (Hawaiarca), Barbatia (Mesocibota), Barbatia aegyptiaca, Barbatia aptiensis, Barbatia aspera, Barbatia axinaea, Barbatia candida, Barbatia carolinensis, Barbatia consutilis, Barbatia corvamnis, Barbatia cowlitzensis, Barbatia crustata, Barbatia culleni, Barbatia deusseni, Barbatia dissimilis, Barbatia foliata, Barbatia geinitzi, Barbatia gibba, Barbatia glyphus, Barbatia helblingi, Barbatia illota, Barbatia inglisia, Barbatia irregularis, Barbatia kayalensis, Barbatia landesi, Barbatia legayi, Barbatia lignitifera, Barbatia limatella, Barbatia ludoviciana, Barbatia malaiana, Barbatia marylandica, Barbatia mauryae, Barbatia meridiana, Barbatia mundeformata, Barbatia nodai, Barbatia paradiagona, Barbatia pistachia, Barbatia pseudoillota, Barbatia pumila, Barbatia quilonensis, Barbatia rembangensis, Barbatia seraperta, Barbatia simulans, Barbatia subtrigonalis, Barbatia sundaiana, Barbatia suzzalloi, Barbatia uxorispalmeri, Barbatia wendti
Subtaxa: Barbatia (Obliquarca) dentera Barbatia (Obliquarca) modiolida Barbatia (Obliquarca) subcandida
Ecology: stationary epifaunal suspension feeder
Distribution:
• Pliocene of the Dominican Republic (2 collections), Jamaica (2)
• Miocene to Pliocene of the Dominican Republic (1)
• Miocene of Bulgaria (1), Hungary (1)
Total: 7 collections including 9 occurrences