[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Porifera Grant, 1836 - sponges
     Class Hexactinellida Schmidt, 1870 - hexactinellids
       Subclass Amphidiscophora Schulze, 1886
         1 Family Pheronematidae Gray, 1870
         2 Family Hyalonematidae Gray, 1857