Alternative spelling: Arcacea
Parent taxon: Arcida according to J. G. Carter et al. 2011
See also Adegoke 1977, Beu et al. 1990, Bieler and Mikkelsen 2006, Bouchet et al. 2010, Coan et al. 2000, Cope 1997, Dockery 1982, Giribet and Wheeler 2002, Glenn 1904, Gliozzi and Malatesta 1983, Grant, IV and Gale 1931, Hickman 2023, Maxwell 1992, Nevesskaja 2009, Newell 1965, Ride et al. 1999, Rivera 1957, Rosenberg et al. 2006, Schnetler et al. 2024, Squires 1987, Squires 1999, Squires 2010, Stilwell et al. 2004, Vokes 1980, Ward 1992 and Ward and Blackwelder 1987
Sister taxa: Antoneila, Austracuculiaea, Ekaterdonta, Glycymeridoidea, Glycymeroidea, Glyptarcoidea, Limopsoidea, Okinawanoarca, Pentoperna, Philobryoidea, Pitchleria
Subtaxa: Arcidae Catamarcaiidae Cucullaeidae Frejidae Glycymerididae Noetiidae Parallelodontidae
Ecology: facultatively mobile semi-infaunal suspension feeder