Name: Thermococcus sibiricus Miroshnichenko et al. 2001

Category: Species

Proposed as: sp. nov.

Etymology: si.bi’ri.cus. N.L. masc. adj. sibiricus, pertaining to Siberia (region in northwestern Asia, the name said to come from Sibir, ancient Tatar fortress at the confluence of the rivers Tobol and Irtysh)

Gender: masculine

Type strain: DSM 12597; MM 739; VKM B-2774

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ238992 Analyse FASTA

Effective publication: Miroshnichenko ML, Hippe H, Stackebrandt E, Kostrikina NA, Chernyh NA, Jeanthon C, Nazina TN, Belyaev SS, Bonch-Osmolovskaya EA. Isolation and characterization of Thermococcus sibiricus sp. nov. from a Western Siberia high-temperature oil reservoir. Extremophiles 2001; 5:85-91.

IJSEM list: Anonymous. Validation list no. 82. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2001; 51:1619-1620.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • The phylogenomic assignment score of this taxon is -0.01465 (N = 1).
  • The name was not originally to be regarded as validly published because of the lack of two type-strain deposits in two distinct countries. However, an additional deposit was established in the aftermath. Publication: Parker CT, Tindall BJ, Garrity GM. International Code of Nomenclature of Prokaryotes. Int J Syst Evol Microbiol 2019; 69:S1-S111.
  • According to Rules 27(3) and 30, Thermococcus sibiricus Miroshnichenko et al. 2001 is not validly published because, at the time of publication, the type strain was not deposited in two publicly accessible service collections in different countries. According to the Judicial Opinion 81, authors or this name, or other scientists who wish to have this name validly published, should submit evidence of the deposit of the type strain in additional collections to the List Editor (either directly or via the IJSEM Editorial Office) before the next meeting of the Judicial Commission in Sapporo, Japan, in 2011. After that time, the name will be ruled not to have been validly published. If, after that deadline, the authors or other scientists wish to have this name validly published, this may be done by confirming that the name is in accordance with the requirements of the Code and either by requesting valid publication via the Validation Lists or by inclusion of the proposal in an original article in the IJSEM. The details of valid publication will then make reference to those publications. If authors or other scientists feel that an exception should be granted to Rule 30, requiring deposit of the type in two different collections in two different countries, they should contact the Editorial Office of the IJSEM. Publication: Euzeby JP, Tindall BJ. Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an opinion. Int J Syst Evol Microbiol 2004; 54:293-301.

Parent taxon: Thermococcus Zillig 1983

Assigned by: Miroshnichenko ML, Hippe H, Stackebrandt E, Kostrikina NA, Chernyh NA, Jeanthon C, Nazina TN, Belyaev SS, Bonch-Osmolovskaya EA. Isolation and characterization of Thermococcus sibiricus sp. nov. from a Western Siberia high-temperature oil reservoir. Extremophiles 2001; 5:85-91.

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Record number: 782570