Class Protoarchaea

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).

Classification - Warning: see also the file "Classification of prokaryotes: 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.