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
             Suborder Sphaerocollina
               5 Family Bathysphaeridae
               7 Family Sphaeroidae
               9 Family Centrocollidae [monotypic]