[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Porifera Grant, 1836 - sponges
     Class Demospongiae Sollas, 1885 - demosponges
       Subclass Homoscleromorpha Lévi, 1973 see Class Homoscleromorpha Dendy, 1905
         Order Homosclerophorida Dendy, 1905
           1 Family Plakinidae Schulze, 1880