[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Annelida Lamarck, 1809 - segmented worms
     Class Polychaeta Grube, 1850 - polychaetes
       Family Arabellidae Hartman, 1944 see Family Oenonidae Kinberg, 1865
         Genus Oligognathus Spengel, 1881
           Oligognathus bonelliae Spengel, 1882