[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Echinodermata Bruguière, 1789 - echinoderms
     Class Ophiuroidea Gray, 1840 - brittle stars and basket stars
       Order Euryalina Lamarck, 1816
         Family Asteronychidae Ljungman, 1867
           1 Genus Asteronyx Müller & Troschel, 1842
           2 Genus Astrodia Verrill, 1899