Bivalvia - Cardiida - Cardiidae
Alternative spelling: Plagiocardium (Schedocardia)
Full reference: R. B. Stewart. 1930. Gabb's California Cretaceous and Tertiary type lamellibranchs. The Academy of Natural Sciences of Philadelphia Special Publication 3:1-314
Parent taxon: Acanthocardia according to E. J. Moore 2003
See also Kiessling 2003, Moneer et al. 2024, Palmer and Brann 1965, Schneider 2002, Sepkoski 2002, Squires 1984, Squires 1987, Stewart 1930, Turner 1938, Weaver 1942 and Woodring 1982
Sister taxa: Acanthocardia (Acanthocardia), Acanthocardia (Agnocardia), Acanthocardia afra, Acanthocardia becksii, Acanthocardia brunettii, Acanthocardia hanseata, Acanthocardia maputi, Acanthocardia massintonti, Acanthocardia mozambensis, Acanthocardia paucicostata, Cardium (Acanthocardia) cheribonense
Subtaxa: Acanthocardia (Schedocardia) gehannamensis Acanthocardia (Schedocardia) tuomeyi
Type: Cardium hatchetigbeensis
Ecology: facultatively mobile infaunal suspension feeder
Distribution: