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