Praecardiida

Praecardiida
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	†Praecardiida; Newell. 1965
Superfamilies
	Superfamily †Praecardioidea Family †Buchiolidae; Family †Praecardiidae; ; Superfamily †Cardioloidea Family †Cardiolidae; Family †Slavidae; ;
Synonyms
	Praecardioida

Praecardiida is an extinct order of fossil saltwater clams, marine bivalve molluscs.

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