The order Arcida, as the suborder Arcacea, is included in the order
Taxodonta by R.C. Moore, 1952, characterised by simple hinge-line dentition consisting of small, numerous, similar hinge teeth, separate mantle lobes, poorly developed siphons, and filibranch gills. In 2010, Bieler, Carter & Coan proposed a new classification system for the Bivalvia which combines the taxodont Arcida with the
dysodont Limida Mytilida,
Ostreida and
Pteriida as the
Pteriomorphia. Subtaxa included in the Arcida are shown below. In 2016, the superfamilies of Arcida changed from two to three, with an additional superfamily of fossils only. The new taxonomy is as follows: • Superfamily
Arcoidea Lamarck, 1809 • Family
Arcidae Lamarck, 1809 • Family
Catamarcaiidae Cope, 2000 • Family
Cucullaeidae Stewart, 1930 • Family
Frejidae Ratter & Cope, 1998 • Family
Glycymerididae Dall, 1908 (1847) • Family
Noetiidae Stewart, 1930 • Family
Parallelodontidae Dall, 1898 • Superfamily
Glyptarcoidea Cope, 1996: with fossil species only. • Family
Glyptarcidae Cope, 1996 • Family
Pucamyidae Sánchez & Benedetto, 2007 • Superfamily
Limopsoidea Dall, 1895 • Family
Limopsidae Dall, 1895 • Family
Philobryidae F. Bernard, 1897 ==References==