[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 Halechiniscidae Thulin, 1928
         Genus Halechiniscus Richters, 1908
           1 Halechiniscus chafarinensis Grimaldi de Zio & Villora-Moreno, 1995
           2 Halechiniscus flabellatus Grimaldi de Zio et al., 1982 see Chrysoarctus flabellatus (Grimaldi de Zio et al., 1982)
           3 Halechiniscus greveni Renaud-Mornant & Deroux, 1976
           4 Halechiniscus guiteli Richters, 1908
           5 Halechiniscus macrocephalus Grimaldi de Zio et al., 1988
           6 Halechiniscus paratuleari Grimaldi de Zio et al., 1988
           7 Halechiniscus perfectus Schulz, 1955
           8 Halechiniscus remanei Schulz, 1955
           9 Halechiniscus intermedius Renaud-Mornant, 1967 see Wingstrandarctus intermedius (Renaud-Mornant, 1967) Kristensen, 1984