Warning: In the List of Prokaryotic names with Standing in Nomenclature, an arrow (→) only indicates the sequence of valid publication of names and does not mean that the last name in the sequence must be used (see: Introduction).
Protoarchaea Cavalier-Smith 2002, class. nov.
Type order: ¤ Thermococcales Zillig 1988.
Etymology: Gr. proto, first; Gr. archae-, ancient; N.L. neut. pl. n. Protoarchaea, named Protoarchaea because bacteria have all retained the putatively ancestral archaebacterial phenotype of hyperthermophily, histones and sulphur reduction.
Valid publication: CAVALIER-SMITH (T.): The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification. Int. J. Syst. Evol. Microbiol., 2002, 52, 7-76.
Original article in IJSEM Online
Note: Protoarchaea Cavalier-Smith 2002 is an earlier homotypic synonym of ¤ Thermococci Zillig and Reysenbach 2002.