Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Porifera Grant, 1836 - sponges
     Class Calcarea Bowerbank, 1864 - calcareous sponges
       Subclass Calcaronea Bidder, 1898
         Order Baerida Borojevic, Boury-Esnault & Vacelet, 2000
           1 Family Baeriidae Borojevic, Boury-Esnault & Vacelet, 2000
           2 Family Trichogypsiidae Borojevic, Boury-Esnault & Vacelet, 2000
           3 Family Lepidoleuconidae Vacelet, 1967 [monotypic]