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The Cryptodonta are a nearly-extinct subclass of the bivalves. It contains a single extant order, Solemyida, while the Praecardiida are known only from fossils.
The valves of the shell are relatively thin and somewhat elongated. Unlike most other bivalves, species in this group have no hinge teeth on their shells. They have relatively primitive, "protobranchiate", gills.[1]
The Cryptodonta are a nearly-extinct subclass of the bivalves. It contains a single extant order, Solemyida, while the Praecardiida are known only from fossils.
The valves of the shell are relatively thin and somewhat elongated. Unlike most other bivalves, species in this group have no hinge teeth on their shells. They have relatively primitive, "protobranchiate", gills.
Les Solemyoidea sont une super-famille de mollusques bivalves.
Selon World Register of Marine Species (16 décembre 2018)[1] :
Les Solemyoidea sont une super-famille de mollusques bivalves.
