[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: 3k;35p;34c;158o;1359f;4704g;2825s;11ss
   Phylum Tardigrada Doyère, 1840 - tardigrades
  Count: 2o;7f;25g;78s
     Order Heterotardigrada Marcus, 1927 see Class Heterotardigrada Marcus, 1927
    Count: 6f;24g;73s
       Family Halechiniscidae Thulin, 1928
      Count: 14g;44s
         Genus Styraconyx Thulin, 1942
        Count: 11s
           0 Styraconyx hallasi Kristensen, 1977
          Count: -
           01 Styraconyx craticulus (Pollock, 1983)
          Count: -
           02 Styraconyx haploceros Thulin, 1942
          Count: -
           03 Styraconyx kristenseni Renaud-Mornant, 1981
          Count: -
           04 Styraconyx nanoqsunguak Kristensen & Higgins, 1984
          Count: -
           05 Styraconyx paulae Robotti, 1971
          Count: -
           06 Styraconyx qivitoq Kristensen & Higgins, 1984
          Count: -
           07 Styraconyx sardiniae d'Addabbo Gallo et al., 1989
          Count: -
           08 Styraconyx sargassii Thulin, 1942 see Styraconyx sargassi Thulin, 1942
          Count: -
           09 Styraconyx testudo d'Addabbo Gallo et al., 1984
          Count: -
           10 Styraconyx tyrrhenus d'Addabbo Gallo et al., 1989
          Count: -