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Related to Entomostraca: ephemerid
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|Noun||1.||Entomostraca - in some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use|
class Crustacea, Crustacea - class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas
class - (biology) a taxonomic group containing one or more orders
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