[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 Microcionina Hajdu, van Soest & Hooper, 1994
             Family Iophonidae Burton, 1929 see Family Acarnidae Dendy, 1922
               1 Genus Acarnus Gray, 1867
               2 Genus Acheliderma Topsent, 1892
               3 Genus Anisotylacanthea Vacelet, 1969 see Genus Damiria Keller, 1891
               4 Genus Astylinifer Topsent, 1927 see Genus Acheliderma Topsent, 1892
               5 Genus Cornulotrocha Topsent, 1927 see Subgenus Cornulotrocha Topsent, 1927
               6 Genus Cornulum Carter, 1876
               7 Genus Iophon Gray, 1867
               8 Genus Quintoxilla de Laubenfels, 1950 see Subgenus Antho Gray, 1867