Phylum Porifera Grant, 1836 - sponges
   Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885
     Subclass †Lithistida Schmidt, 1870
       Order Spirosclerophorida Reid, 1963
         Suborder Rhizomorina Zittel, 1895
           Superfamily Scleritodermatoidea Sollas, 1888
             Family Seliscothonidae Schrammen, 1924
               1 ?Genus †Laosciadia Pomel, 1872
               2 Genus †Pachyselis Schrammen, 1924
               3 Genus †Pseudoseliscothon Moret, 1926
               4 Genus †Rhabdotum Schrammen, 1924
               5 Genus †Trachydictya Pomel, 1872
               6 Genus †Seliscothon Zittel, 1878
               7 Genus †Histiodia Pomel, 1872
               8 Genus †Kaliapsis Bowerbank, 1869
               9 Genus †Phlyctia Pomel, 1872