[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 Ceractinomorpha Lévi, 1953 see Class Demospongiae Sollas, 1885
         Order Poecilosclerida Topsent, 1928
           Suborder Myxillina Hajdu, van Soest & Hooper, 1994
             Family Crambeidae Lévi, 1963
               1 Genus Crambe Vosmaer, 1880
               2 Genus Discorhabdella Dendy, 1924