Candidatus Augarchaeota

"Candidatus Augarchaeota" (previously "Candidatus Aigarchaeota"^[1]) is a proposed archaeal phylum of which the main representative is "Candidatus Caldiarchaeum subterraneum".^[2] It is not yet clear if this represents a new phylum or a Nitrososphaeria order, since the genome of "Candidatus Caldiarchaeum subterraneum" encodes several Nitrososphaeria-like features.^[3] The name "Candidatus Aigarchaeota" comes from the Greek αυγή, avgí, meaning "dawn" or "aurora", for the intermediate features of hyperthermophilic and mesophilic life during the evolution of its lineage.^[2] The prefix Aig was found to be a misspelling, and corrected to Aug, thereby the new name "Candidatus Augarchaeota".^[4]

"Candidatus Augarchaeota"
Scientific classification
Domain:	Archaea
Kingdom:	Thermoproteati
Phylum:	"Candidatus Augarchaeota" corrig. Nunoura et al. 2011
Order
"Ca. Caldarchaeales"
Synonyms
"Ca. Aigarchaeota" Nunoura et al. 2011 "Ca. Aigarchaeales" "Caldiarchaeales" Cavalier-Smith 2014

Taxonomy

Phylogeny of Caldarchaeales[5][6][7]

"Calditenuaceae" "Ca. Calditenuis aerorheumatis" "Caldarchaeaceae" "Ca. Caldarchaeum subterraneum" "Ca. Pelearchaeum maunauluense" "Wolframiiraptoraceae" "Ca. Terraquivivens" "Ca. T. ruidianensis" "Ca. T. tikiterensis" "Ca. T. tengchongensis" "Ca. T. yellowstonensis" "Ca. Geocrenenecus" "Ca. G. dongiae" "Ca. G. arthurdayi" "Ca. G. huangii" "Ca. Benthortus lauensis" "Ca. Wolframiiraptor" "Ca. W. sinensis" "Ca. W. allenii" "Ca. W. gerlachensis"

• Order "Candidatus Caldarchaeales" corrig. Rinke et al. 2020^[8] ["Candidatus Aigarchaeales"]
  • Family "Candidatus Calditenuaceae" Balbay et al. 2023
    • Genus "Candidatus Calditenuis" Beam et al. 2016
      • "Ca. C. aerorheumatis" corrig. Beam et al. 2016
      • "Ca. C. fumarioli" Balbay et al. 2023
  • Family "Candidatus Caldarchaeaceae" Rinke et al. 2020
    • Genus "Candidatus Caldarchaeum" corrig. Nunoura et al. 2011^[9][10]
      • "Ca. C. subterraneum" corrig. Nunoura et al. 2011
    • Genus "Candidatus Pelearchaeum" Balbay et al. 2023
      • "Ca. P. maunauluense" Balbay et al. 2023
  • Family "Candidatus Wolframiiraptoraceae" Buessecker et al. 2022
    • Genus "Candidatus Benthortus" Buessecker et al. 2022
      • "Ca. B. lauensis" Buessecker et al. 2022
    • Genus "Candidatus Geocrenenecus" Buessecker et al. 2022
      • "Ca. G. arthurdayi" Buessecker et al. 2022
      • "Ca. G. dongiae" Buessecker et al. 2022
      • "Ca. G. huangii" Buessecker et al. 2022
    • Genus "Candidatus Terraquivivens" Buessecker et al. 2022
      • "Ca. T. ruidianensis" Buessecker et al. 2022
      • "Ca. T. tengchongensis" Buessecker et al. 2022
      • "Ca. T. tikiterensis" Buessecker et al. 2022
      • "Ca. T. yellowstonensis" Buessecker et al. 2022
    • Genus "Candidatus Wolframiiraptor" Buessecker et al. 2022
      • "Ca. W. allenii" Buessecker et al. 2022
      • "Ca. W. gerlachensis" Buessecker et al. 2022
      • "Ca. W. sinensis" Buessecker et al. 2022

See also

• List of Archaea genera