Proper noun
Bivalvia
- A taxonomic class within the phylum Mollusca – bivalve molluscs.
Hyponyms
- (class): Autobranchia, Protobranchia - subclasses
- Heteroconchia, Pteriomorphia - superorders in Autobranchia
- Carditida, Lucinida, Myida, Pholadomyida, Trigoniida, Unionida, Venerida; Arcida, Limida, Mytilida, Ostreida, Pectinida, Pteriiida; Nuculanida, Nuculida, Solemyoida - orders