Entomostraca
plural nounEn·to·mos·tra·ca | \ ˌentəˈmästrə̇kə \
Definition of Entomostraca
in some classifications
: a subclass of Crustacea comprising the Branchiopoda, Ostracoda, Copepoda, and Cirripedia, groups regarded by most modern systematists as too diverse for inclusion in a single subclass, the name then being used as a term of convenience without taxonomic implications
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