[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Branch Parazoa (Sollas, 1884) see Phylum Porifera Grant, 1836
       Phylum Porifera Grant, 1836 - sponges
         Class Demospongiae Sollas, 1885 - demosponges
           Subclass Monaxonida Ridley & Dendy, 1887 see Class Demospongiae Sollas, 1885
             Order Halichondrida Vosmaer, 1887
               Genus Halichondria Fleming, 1828