[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 Halichondrida Vosmaer, 1887
Family Halichondriidae Gray, 1867
01 Genus Amorphinopsis Carter, 1887
02 Genus Axinyssa Lendenfeld, 1897
03 Genus Ciocalapata de Laubenfels, 1936
04 Genus Ciocalypta Bowerbank, 1862
05 Genus Coelocalypta Topsent, 1928
see Genus Ciocalypta Bowerbank, 1862
06 Genus Halichondria Fleming, 1828
07 Genus Hymeniacidon Bowerbank, 1858
08 Genus Leucophloeus Carter, 1883
see Genus Ciocalypta Bowerbank, 1862
09 Genus Petromica Topsent, 1898
10 Genus Stylinos Topsent, 1891
see Genus Hymeniacidon Bowerbank, 1858
11 Genus Spongosorites Topsent, 1896
12 Genus Topsentia Berg, 1899