Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies Biota "neomura" Domain Eukaryota Chatton, 1925 - eukaryotes "neokaryotes" - mitochondrial eukaryotes 1 Phylum Percolozoa Cavalier-Smith, 1991 2.1 Class Tsukubea Cavalier-Smith, 2013 [monotypic] 2.2.1 Class Jakobea Cavalier-Smith, 1997 [monotypic] 2.2.2 "neozoa"