[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 Hymedesmiidae Topsent, 1928
               1 Genus Hamigera Gray, 1867
               2 Genus Hemimycale Burton, 1934
               3 Genus Herceus Koltun, 1959 see Genus Hymenancora Lundbeck, 1910
               4 Genus Hymedesmia Bowerbank, 1864
               5 Genus Phorbas Duchassaing & Michelotti, 1864
               6 Genus Plocamionida Topsent, 1927
               7 Genus Pseudohalichondria Carter, 1886
               8 Genus Spanioplon Topsent, 1890