[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Tardigrada Doyère, 1840 - tardigrades
     Order Heterotardigrada Marcus, 1927 see Class Heterotardigrada Marcus, 1927
       Family Coronarctidae Renaud-Mornant, 1974
         1 Genus Coronarctus Renaud-Mornant, 1974
         2 Genus Trogloarctus Villora-Moreno, 1996