Asgard (Archaea)

Promethearchaea
Scientific classification
Domain: Archaea
Clade: Proteoarchaeota
Kingdom: Promethearchaeati
Imachi et al. 2024
Phyla and classes
  • Promethearchaeota
    • "Ca. Baldrarchaeia"
    • "Ca. Borrarchaeia"
    • "Ca. Hermodarchaeia"
    • Promethearchaeia
    • "Ca. Wukongarchaeia"
Synonyms
  • "Asgard" Katarzyna Zaremba-Niedzwiedzka et al. 2017
  • "Ca. Asgardaeota" Whitman 2018
  • "Ca. Asgardarchaeota" Violette Da Cunha et al. 2017
  • "Eukaryomorpha" Fournier & Poole 2018

Promethearchaeati (syn. "Asgard") is a kingdom belonging to the domain Archaea that contain eukaryotic signature proteins. It appears that the eukaryotes, the domain that contains the animals, plants, fungi and protists, emerged within the Promethearchaeati, in a branch containing the "Candidatus Heimdallarchaeota". This supports the two-domain system of classification over the three-domain system. The kingdom contains one phylum Promethearchaeota, and it contains one valid class Promethearchaeia.

After including the kingdom category into ICNP, the only validly published name of this group is kingdom Promethearchaeati. All formerly proposed "phyla" would be de-ranked to classes in this framework.

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