Bivalvia - Cardiida - Veneridae
Alternative spelling: Calpitaria
Parent taxon: Pitar according to J.-M. Pacaud and J. Le Renard 1995
See also Le Renard and Pacaud 1995, Sepkoski 2002, Squires 1984, Stenzel et al. 1957 and Vokes 1980
Sister taxa: Meretrix (Pitar) dalikiensis, Meretrix (Pitar) elliptica, Pitar (Chionella), Pitar (Cordiopsis), Pitar (Costellipitar), Pitar (Hyphantosoma), Pitar (Lamelliconcha), Pitar (Meisenia), Pitar (Nanopitar), Pitar (Omnivenus), Pitar (Paradione), Pitar (Pitar), Pitar (Pitar) nuttali, Pitar (Pitarenus), Pitar (Pitarina), Pitar addicotti, Pitar albidus, Pitar barbarensis, Pitar baylii, Pitar cedroensis, Pitar colchaguana, Pitar cordatus, Pitar diabloensis, Pitar hataii, Pitar kotoi, Pitar mancorensis, Pitar morrhuanus, Pitar murphyi, Pitar ozakii, Pitar palmeri, Pitar parisiensis, Pitar petropolitanus, Pitar porrecta, Pitar quadratus, Pitar rostratus, Pitar salanga, Pitar sciaena, Pitar securiformis, Pitar simpsoni, Pitar sorachiensis, Pitar stocki, Pitar subarestus, Pitar transversus, Pitar uvasana, Pitar vancouverensis, Cytherea (Caryatis) pratti
Subtaxa: Pitar (Calpitaria) campi Pitar (Calpitaria) carteri Pitar (Calpitaria) obliqua Pitar (Calpitaria) petropolitanus Pitar (Calpitaria) sainceyensis Pitar (Calpitaria) sulcatarius Pitar (Calpitaria) texacola Pitar (Calpitaria) texibrazus Pitar (Calpitaria) tornadonis Pitar (Calpitaria) vaginacarum
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Eocene of Belgium (2 collections), Bulgaria (1), Egypt (2), France (1), India (2), Pakistan (1), Poland (1), the United Kingdom (16), United States (28: Alabama, California, Mississippi, Texas)
• Paleocene to Eocene of Pakistan (1)
Total: 55 collections including 62 occurrences