Authorship

SN2000 author citation	:			(C.R. Woese et al., 1990) G.M. Garrity & J.G. Holt, in D.R. Boone et al., eds., 2001/2002, nom. descript., stat. praeinit.
Original name	:			Woese, C.R., Kandler, O. & Wheelis, M.L. 1990. Proc. Natl. Acad. Sci. USA 87: 4579.
Unavailable subsequent rank (orig. spell.)	:			Garrity, G.M. & Holt, J.G. 2001a. In D.R. Boone & R.W. Castenholz (eds.), in G.M. Garrity (ed.), Bergey's Man. Syst. Bacteriol. (ed. 2) 1: 123 ("phy. nov. Garrity and Holt."), 155 ("phy. nov."). [working description].
Subsequent rank (orig. spell.)	:			Garrity, G.M. & Holt, J.G. 2001b. In D.R. Boone & R.W. Castenholz (eds.), Vol. 1: The Archaea and the Deeply Branching and Phototrophic Bacteria. In G.M. Garrity (ed.), Bergey's Manual of Systematic Bacteriology, 2nd ed., Springer-Verlag, New York: 169 ("phy. nov.").
Validating publication	:			[Anonymous] 2002. Int. J. Syst. Evol. Microbiol. 52 (3): tbl. (p. 685: "phyl. nov.‡", "Garrity and Holt").

Etymology

Greek krene, spring.	Ref: L. Margulis & K.V. Schwartz, 1998: 60.
Greek archae, old.	Ref: L. Margulis & K.V. Schwartz, 1998: 60.
Greek -otes, quality.	Ref: L. Margulis & K.V. Schwartz, 1998: 60.

Attributes

Pre-starting-point rank (stat. inval.[: praeinit.]) [ICNP, 2022: p. 1, Rules 5b, 8 (phylum, <2021)]				Ref: [Anonymous], 2002. Int. J. Syst. Evol. Microbiol. 52 (3): tbl. (p. 685: "‡").
Descriptive name ([nom. illeg.]: nom. descript.) [ICNP, 2025: Rule 8; Judicial Opinion 129: 3-4, 7 (>order)]				Ref: D.R. Arahal et al. 2024. Judicial Opinion 129: 7, tbl. 2 (p. 7: "DN").

Types

Type

:

Thermoproteales (Order) Zillig and Stetter 1982

Ref: [Anonymous], 2002: tbl. (p. 685).

Variants

Validly published name	:	Thermoproteota (Phylum) Garrity and Holt 2021		Ref: D.R. Arahal et al., 2024: tbl. 2 (p. 7: "Garrity and Holt 2001").
Former rank	:	Crenarchaeota (Kingdom) Woese et al. 1990
Former rank	:	Crenarchaeota (Subdivision) Cavalier-Smith 2002
Former rank	:	Crenarchaeota (Class) Cavalier-Smith 2002 nom. rej.
Former rank	:	Crenarcheota (Kingdom) Woese et al. 1990

Synonyms

Accepted name (objective)	:	Thermoproteota (Phylum) Garrity and Holt 2021		Ref: LPSN, 2020-present: [22 Nov 2025] ("homotypic").
Synonymous name	:	Sulfobacteria (Subphylum) (Cavalier-Smith 1986) Cavalier-Smith 1998
Including	:	Geoarchaeota (Phylum) Kozubal et al. 2013		Ref: C. Rinke et al., 2013: fig. 2.