living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Annelida Lamarck, 1809 - segmented worms
           Class Oligochaeta Grube, 1850 - oligochaetes see [unranked] oligochaetous Clitellata
             ?Family Aeolosomatidae Beddard, 1895
               1 Genus Aeolosoma Ehrenberg, 1828
               2 Genus Hystricosoma Michaelsen, 1926
               3 Genus Potamodrilus Lastockin, 1935
               4 Genus Rheomorpha Ruttner-Kolisko, 1955