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Judicial Commision of the International Committee on Systematics of Prokaryotes: "The nomenclatural types of the orders Acholeplasmatales, Halanaerobiales, Halobacteriales, Methanobacteriales, Methanococcales, Methanomicrobiales, Planctomycetales, Prochlorales, Sulfolobales, Thermococcales, Thermoproteales and Verrucomicrobiales are the genera Acholeplasma, Halanaerobium, Halobacterium, Methanobacterium, Methanococcus, Methanomicrobium, Planctomyces, Prochloron, Sulfolobus, Thermococcus, Thermoproteus and Verrucomicrobium, respectively. Opinion 79." Int. J. Syst. Evol. Microbiol. (2005) 55:517-518.

Validation List No. 8. Int. J. Syst. Bacteriol. (1982) 32:266-268.

Zillig, W., Stetter, K.O., Schafer, W., Janekovic, D., Wunderl, S., Holz, I., and Palm, P. "Thermoproteales: a novel type of extremely thermoacidophilic anaerobic archaebacteria isolated from Icelandic solfataras." Zentralbl. Mikrobiol. Parasitenkd. Infektionskr. Hyg. Abt. 1 Orig. (1981) C2:205-227. [No PubMed record available.]

Zillig, W., Tu, J., and Holz, I. "Thermoproteales--a third order of thermoacidophilic archaebacteria." Nature (1981) 293:85-86. [No abstract available.]