[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: 3k;35p;34c;158o;1359f;4704g;2825s;11ss
   Phylum Echinodermata Bruguière, 1789 - echinoderms
  Count: 5c;34o;88f;280g
     Class Echinoidea (Leske, 1778) - sea urchins and sand dollars
    Count: 12o;24f;48g
       Order Arbacioida Gregory, 1900
      Count: 1f;5g
         Family Arbaciidae Gray, 1855
        Count: 5g
           Genus Habrocidaris Agassiz & Clark, 1907
          Count: -