[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Crustacea (Brünnich, 1772) - crustaceans see Superclass Crustacea Pennant, 1777
     Subclass Ostracoda Latreille, 1806 - ostracods see Class Ostracoda Latreille, 1802
       Order Myodocopida Sars, 1866
         Family Halocyprididae Dana, 1853
           01 Genus Alacia Poulsen, 1973
           02 Genus Archiconchoecia Müller, 1894
           03 Genus Bathyconchoecia Deevey, 1968
           04 Genus Boroecia Poulsen, 1973
           05 Genus Conchoecetta Claus, 1890
           06 Genus Conchoecia Dana, 1852[1853]
           07 Genus Conchoecilla Claus, 1890
           08 Genus Conchoecissa Claus, 1890
           09 Genus Discoconchoecia Martens, 1979
           09.0 Genus "Discoonchoecia" nom. null. see Genus Discoconchoecia Martens, 1979
           10 Genus Euconchoecia Müller, 1890
           11 Genus Felia nom. null. see Genus Fellia Poulsen, 1969
           12 Genus Gaussicia Poulsen, 1973
           12.0 Genus "Guassicia" nom. null. see Genus Gaussicia Poulsen, 1973
           13 Genus Halocypria Claus, 1874
           14 Genus Halocypris Dana, 1853
           15 Genus Loricoecia Poulsen, 1973
           16 Genus Macroconchoecia
           17 Genus Metaconchoecia Kock, 1992
           17.0 Genus "Metaonchoecia" nom. null. see Genus Metaconchoecia Kock, 1992
           18 Genus Mikroconchoecia Claus, 1890
           19 Genus Mollicia Poulsen, 1973
           20 Genus Obtusoecia Martens, 1979
           21 Genus Orthoconchoecia Martens, 1979
           22 Genus Paraconchoecia Claus, 1890
           23 Genus Paramollicia Poulsen, 1973
           24 Genus Porroecia Martens, 1979
           25 Genus Proceroecia Kock, 1992
           26 Genus Pseudoconchoecia Claus, 1890