Alternative combination: Arca gradata
Synonym: Acar panamensis Bartsch 1931
Belongs to Barbatia (Acar) according to A. M. Keen 1971
See also Reinhart 1943
Sister taxa: 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) micronodosa, Barbatia (Acar) reinharti, Barbatia (Acar) trapeziformis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Quaternary of Ecuador (2 collections), Mexico (2)
• Pliocene to Pleistocene of Ecuador (1)
Total: 5 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.