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Scientific classification

Burggraf, Huber & Stetter, 1997

The Pyrodictiaceae are a family of disc-shaped anaerobic microorganisms belonging to the order Desulfurococcales, in the domain Archaea. Members of this family are distinguished from the other family (Desulfurococcaceae) in the order Desulfurococcales by having an optimal growth temperature above 100 °C, rather than below 100 °C.[1]


The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[2] and National Center for Biotechnology Information (NCBI)[3] and the phylogeny is based on 16S rRNA-based LTP release 106 by The All-Species Living Tree Project.[4]

?Pyrolobus fumarii Blöchl et al. 1999

  ?Geogemma ♠

G. indicaKashefki et al. 2006 (type sp.)

G. pacificaKashefki et al. 2006

Hyperthermus butylicus Zillig et al. 1991


P. abyssi Pley and Stetter 1991

P. brockii Stetter et al. 1984

P. occultum Stetter et al. 1984 (type sp.)

♠ Strain found at the National Center for Biotechnology Information (NCBI) but not listed in the List of Prokaryotic names with Standing in Nomenclature (LPSN)


  1. ^ Itoh, T.; K. Suzuki; P. C. Sanchez; T. Nakasel (2003). "Caldisphaera lagunensis gen. nov., sp. nov., a novel thermoacidophilic crenarchaeote isolated from a hot spring at Mt Maquiling, Philippines". International Journal of Systematic and Evolutionary Microbiology. 53 (Pt 4): 1149–1154. doi:10.1099/ijs.0.02580-0. PMID 12892143. Archived from the original on 2007-09-29.
  2. ^ J.P. Euzéby. "Pyrodictiaceae". List of Prokaryotic names with Standing in Nomenclature (LPSN). Archived from the original on 2013-01-27. Retrieved 2011-11-17.
  3. ^ Sayers; et al. "Pyrodictiaceae". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2011-06-05.
  4. ^ All-Species Living Tree Project."16S rRNA-based LTP release 106 (full tree)" (PDF). Silva Comprehensive Ribosomal RNA Database. Retrieved 2011-11-17.

Further reading[edit]

Scientific journals[edit]

  • Burggraf S; Huber H; Stetter KO (1997). "Reclassification of the crenarchael orders and families in accordance with 16S rRNA sequence data". Int. J. Syst. Bacteriol. 47 (3): 657–660. doi:10.1099/00207713-47-3-657. PMID 9226896.

Scientific books[edit]

  • Huber H; Stetter KO (2001). "Order II. Desulfurococcales ord. nov.". In DR Boone; RW Castenholz. Bergey's Manual of Systematic Bacteriology Volume 1: The Archaea and the deeply branching and phototrophic Bacteria (2nd ed.). New York: Springer Verlag. p. 169. ISBN 978-0-387-98771-2.

Scientific databases[edit]

External links[edit]