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] Candidate superphylum Asgard Zaremba-Niedzwiedzka et al. 2017 [paraphyletic] Candidate phylum "Uncultured Archaeal Phylum 3 (UAP3/AAG)" Parks et al. 2017 "Ancient Archaeal Group (AAG)" Takai & Horikoshi 1999