[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 Ophiurida Müller & Troschel, 1840 sensu O'Hara et al., 2017 sensu O'Hara & al. , 2017
         Family Ophiactidae Matsumoto, 1915
           1 Genus Histampica Clark, 1970
           2 Genus Ophiactis Lütken, 1856
           3 Genus Ophiopholis Müller & Troschel, 1840
           4 Genus Ophiopus Ljungman, 1866