Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Clade neomura Cavalier-Smith, 1987 Domain Archaea Woese et al. 1990 [paraphyletic] [Kingdom "Euryarchaeota" Woese et al. 1990] see Phylum Euryarchaeota Garrity and Holt 2001 [Order "Thermoplasmales"] see Order Thermoplasmatales Reysenbach 2001 [Family Thermoplasmaceae] see Family Thermoplasmataceae Reysenbach 2001