Pitar (Chionella) Cossmann 1886 (venus clam)

Bivalvia - Cardiida - Veneridae

Alternative spellings: Chionella, Macrocallista (Chionella)

Parent taxon: Pitar according to O. Mandic and F. F. Steininger 2003

See also Hendy et al. 2008, Mansfield 1940, Sepkoski 2002 and Woodring 1982

Sister taxa: Meretrix (Pitar) dalikiensis, Meretrix (Pitar) elliptica, Pitar (Calpitaria), 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: Macrocallista (Chionella) perduensis Pitar (Chionella) despecta Pitar (Chionella) lunularia Pitar (Chionella) ovalina

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Ecology: facultatively mobile infaunal suspension feeder

Distribution:

• Miocene of Austria (5 collections)

• Oligocene of Mexico (4), United States (3: Alabama, Georgia, Mississippi)

• Eocene of Nigeria (1), Romania (1)

• Paleocene of Belgium (3), Poland (1)

Total: 18 collections including 20 occurrences

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