Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               "protists" incertae sedis
                 Group †Calcitarcha G.J.M. Versteegh, T. Servais, Streng, Munnecke & Vachard (2009), incertae sedis [polyphyletic] - calcispheres
                   †"Gilianelloid taxa"
                     01 Genus †Aquilegiella Odin (2008)
                     02 Genus †Aturella Odin (2008)
                     03 Genus †Azymella Odin (2008)
                     04 Genus †Caccabella Odin (2008)
                     05 Genus †Coraliella Odin (2008)
                     06 Genus †Corbella Odin (2008)
                     07 Genus †Corniculum Odin (2008)
                     08 Genus †Coronadinium H. Willems (1998)
                     09 Genus †Gilianella Odin (2007)
                     10 Genus †Numismella Odin (2008)
                     11 Genus †Obbella Odin (2008)
                     12 Genus †Orculiella Odin (2008)
                     13 Genus †Pennigerella Odin (2008)
                     14 Genus †Pocillella Odin (2008)
                     15 Genus †Scutellella Odin (2008)
                     16 Genus †Tercensella Odin (2008)
                     17 Genus †Tetratropis H. Willems (1990)