Asgard (Archaea)

Promethearchaeati (previously known as superphylum "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.

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.