2010 Bivalvia taxonomy

[1] This was a revised system for classifying bivalve mollusks such as clams, oysters, scallops, mussels and so on.

In compiling this new taxonomy, the authors used a variety of phylogenetic information including molecular analysis, anatomical analysis, shell morphology and shell microstructure, as well as bio-geographic, paleobiogeographical and stratigraphic information.

The remaining 110 families occur in the recent past, with or without a fossil record.

[1] This classification has since been adopted by WoRMS, the World Register of Marine Species.

[2] Classification of Class Bivalvia (under the redaction of Rüdiger Bieler, Joseph G. Carter and Eugene V. Coan) (all taxa marked † are extinct) :[3]

An assortment of shells of marine bivalves and a few marine gastropods found on a beach in Wales