[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Cnidaria Hatschek, 1888 - cnidarians
     Class Scyphozoa Goette, 1887 - jellyfish
       Order Semaeostomeae - flag-mouth jellies
         1 Family Pelagiidae Gegenbaur, 1856
         2 Family Cyaneidae L. Agassiz, 1862
         3 Family Ulmaridae Haeckel, 1879