†Scapharca (Scapharca) obispoana perdisparis Wiedey 1928
Alternative combinations: Anadara (Scapharca) obispoana perdisparis, Arca perdisparis
Full reference: L. W. Wiedey. 1928. Notes on the Vaqueros and Temblor formations of the California Miocene with descriptions of new species. Transactions of the San Diego Society of Natural History 5(10):95-182
Belongs to Scapharca (Scapharca) obispoana according to E. J. Moore 1983
See also Reinhart 1943 and Wiedey 1928
Sister taxa: Anadara (Scapharca) obispoana obispoana, Scapharca (Scapharca) obispoana obispoana
Type specimen: SDSNH 23, a valve. Its type locality is LSJU loc. 443, Zayante, which is in a Miocene coastal horizon in the Monterey Formation of California.
Distribution: found only at LSJU loc. 443, Zayante