Cardioidea

Cardioidea is a taxonomic superfamily of saltwater clams, marine bivalve molluscs consisting of the extant Cardiidae (cockles) and the extinct Pterocardiidae.

Cardioidea
Live specimens of Cerastoderma edule from Lingreville, France
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Superorder:	Imparidentia
Order:	Cardiida
Superfamily:	Cardioidea Lamarck, 1809
Families
Cardiidae Lamarck, 1809 †Pterocardiidae Scarlato & Starobogatov, 1979
Synonyms
Cardiacea

These families are assigned to Cardioidea:

• Family: Cardiidae Lamarck, 1809
  • Subfamily Cardiinae Lamarck, 1809
  • Subfamily Clinocardiinae Kafanov, 1975
  • Subfamily Fraginae Stewart, 1930
  • Subfamily Laevicardiinae Keen, 1951
  • Subfamily †Lahilliinae Finlay & Marwick, 1937†
  • Subfamily Lymnocardiinae Stoliczka, 1870
  • Subfamily Orthocardiinae J. A. Schneider, 2002
  • Subfamily †Protocardiinae Bronn, 1849†
  • Subfamily Trachycardiinae Stewart, 1930
  • Subfamily Tridacninae Lamarck, 1819
• Family: †Pterocardiidae Scarlato & Starobogatov, 1979
  • Genus †Pterocardia Bayan, 1874
    • Species †Pterocardia alata Rollier, 1912
    • Species †Pterocardia brouzetense Cossmann, 1907
    • Species †Pterocardia cochleata (Quenstedt, 1852)
    • Species †Pterocardia corallina (Leymerie, 1845)
    • Species †Pterocardia couloni Rollier, 1912
    • Species †Pterocardia subminuta (d'Orbigny, 1850)
    • Species †Pterocardia valfinense Rollier, 1912
    • Species †Pterocardia wimmisense Rollier, 1912