Arcoida

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iArcoida
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Pteriomorpha
Order: Arcoida
Families

Superfamily Arcoidea
Arcidae
Cucullaeidae
Noetiidae
Parallelodontidae
Superfamily Limopsoidea
Glycymerididae
Limopsidae
Philobryidae

The Arcoida is an extant Order of bivalve molluscs dating back to the lower Ordovician. Seven families are recognised within the order, including the ark clams or ark shells in family Arcidae.

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