[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Echinodermata Bruguière, 1789 - echinoderms
     Class Asteroidea Blainville, 1830 - sea stars
       Order Paxillosida Perrier, 1884
         Family Porcellanasteridae Sladen, 1883
           1 Genus Caulaster Perrier, 1882
           2 Genus Hyphalaster Sladen, 1883
           3 Genus Porcellanaster Thomson, 1877
           4 Genus Styracaster Sladen, 1883
           5 Genus Thoracaster Sladen, 1883