Phylum Porifera Grant, 1836 - sponges
   Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885
     Subclass Clavaxinellida Lévi, 1956
       Order Protomonaxonida Finks & Rigby, 2004
         Family †Choiidae de Laubenfels, 1955
           1 Genus †Allantospongia Rigby & Hou, 1995
           2 Genus †Choia Walcott, 1920
           3 Genus †Choiaella Rigby & Hou, 1995
           4 Genus †Lenica Goryanskii, 1977