organisms
see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Kingdom Animalia Linnaeus, 1758 - animals
Phylum Porifera Grant, 1836 - sponges
Subphylum Symplasma Reiswig & Mackie, 1983
see Class Hexactinellida Schmidt, 1870
Class Hexactinellida Schmidt, 1870 - hexactinellids
Genus Rhabdocalyptus Schulze, 1886