Syncarida is a superorder of crustaceans, comprising the two extant orders Anaspidacea and Bathynellacea, and the extinct order Palaeocaridacea.
Taxonomy Fifty-nine living genera are known, in six families: Anaspidacea Calman, 1904 Anaspidesidae Ahyong & Alonso-Zarazaga, 2017 Koonungidae Sayce, 1908 Psammaspididae Schminke, 1974 Stygocarididae Noodt, 1963 Bathynellacea Chappuis, 1915 Bathynellidae Grobben, 1904 Parabathynellidae Noodt, 1965
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