Alternative spellings: Arca (Acar), Barbatia (Acar)
Parent taxon: Arcinae according to E. V. Coan and P. Valentich-Scott 2012
See also Adegoke 1977, Coan et al. 2000, Harris 1919, Hendy 2007, Mandic and Steininger 2003, Mansfield 1940, Maury 1917, Oostingh 1935, Pacaud and Le Renard 1995, Pilsbry and Olsson 1941, Reinhart 1943, Schnetler et al. 2024, Sepkoski 2002, Spencer et al. 2004, Squires and Demetrion 1992, Todd 2001, Vokes 1980 and Woodring 1925
Sister taxa: Arca, Calloarca, Destacar, Eonavicula, Epitrisis, Lamarcka, Mimarcaria, Miratacar, Nipponarca, Opularca, Plagiarca, Thronacar, Trisidos
Subtaxa: Acar bailyi Acar celleporacea Acar congenita Acar domingensis Acar lamellosa Acar plicata Acar rostrae Acar sandersonae Arca (Acar) cheribonensis Arca (Acar) pusilla Barbatia (Acar) aspera Barbatia (Acar) bailyi Barbatia (Acar) dentiens Barbatia (Acar) gradata Barbatia (Acar) micronodosa Barbatia (Acar) reinharti Barbatia (Acar) trapeziformis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Quaternary of Angola (1 collection), Australia (1), the Bahamas (3), Bermuda (9), Cayman Islands (2), Costa Rica (3), Cuba (2), Djibouti (1), Ecuador (3), Eritrea (2), French Polynesia (1), Japan (4), Kenya (5), Mayotte (2), Mexico (6), Mozambique (1), New Zealand (1), Panama (2), the Seychelles (1), Spain (2), Sudan (1), United States (10: California, Florida, Hawaii), Venezuela (1), Yemen (1)
• Pliocene to Pleistocene of Ecuador (1)
• Pliocene of Chile (1), Costa Rica (2), Indonesia (5), Jamaica (4), Mexico (3), South Africa (1), Spain (5), Trinidad and Tobago (7), United States (1: California), Venezuela (4)
• Miocene of Algeria (6), Australia (1), Bulgaria (4), Costa Rica (1), the Dominican Republic (1), France (1), Haiti (1), Hungary (1), Indonesia (7), Morocco (2), the Netherlands (1), Northern Mariana Islands (2), Panama (3), Poland (6), Puerto Rico (2), Romania (1), Spain (2), United States (5: Florida), Vanuatu (1)
• Oligocene to Miocene of United States (4: Florida, Georgia)
• Oligocene of Denmark (2), United States (1: Alabama)
• Eocene of Australia (3), Belgium (1), Bulgaria (4), Mexico (2), United States (15: Louisiana, Mississippi, Texas)
• Paleocene of Belgium (5), Denmark (1), France (1), Nigeria (1), the Russian Federation (2), United States (1: Texas)
• Cretaceous of Denmark (3), Poland (1)
Total: 194 collections including 197 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.