prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 stat. inval. Domain "Archaea" Woese et al. 1990 stat. inval. see Domain Archaea Woese et al. 2024 Phylum "Crenarchaeota" Garrity and Holt 2002 stat. inval. [monotypic] see Phylum Thermoproteota Garrity and Holt 2021 Class Thermoprotei Reysenbach 2002 Order Acidilobales Prokofeva et al. 2009 Family Caldisphaeraceae Prokofeva et al. 2009 [monotypic] see Family Acidilobaceae Prokofeva et al. 2009 1 Genus Caldisphaera Itoh et al. 2003