Checklist for THECOSTRACA
Kingdom ANIMALIA
Animals
Phylum ARTHROPODA
Arthropods
Subphylum CRUSTACEA
Crustacea
Class MAXILLOPODA
Subclass PENTASTOMIDA Shipley, 1905
Subclass MYSTACOCARIDA Pennak & Zinn, 1943
Subclass BRANCHIURA Thorell, 1864
Subclass COPEPODA H. Milne Edwards, 1840
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