Phylum Porifera Grant, 1836 - sponges
   Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885
     Subclass Ceractinomorpha Lévi, 1953 see Class Demospongiae Sollas, 1885
       Order †Agelasida Hartman, 1980
         Family †Sebargasiidae de Laubenfels, 1955 (1882)
           01 Genus †Amblysiphonella Steinmann, 1882
           02 Genus †Sebargasia Steinmann, 1882
           03 Genus †Chinaspongia Belyaeva, 2000
           04 Genus †Crymocoelia Belyaeva, 1991
           05 ?Genus †Laccosiphonella Aleotti, Dieci & Russo, 1986
           06 ?Genus †Lingyunocoelia Fan, Wang & Wu, 2002
           07 ?Genus †Paramblysiphonella Deng, 1982
           08 Genus †Pseudoamblysiphonella Senowbari-Daryan & Rigby, 1988
           09 Genus †Pseudoguadalupia Termier & Termier, 1977
           10 Genus †Stylocoelia Wu, 1991
           11 Genus †Vesicotubularia Belyaeva, 1991
           12 Genus †Minisiphonella Boiko, 1991
           13 Genus †Oligocoelia Vinassa de Regny, 1901