Name: Thermotoga hypogea Fardeau et al. 1997

Category: Species

Proposed as: sp. nov.

Etymology: hy.po.ge’a. Gr. masc./fem. adj. hypogeôs, underground, subterraneous; L. fem. adj. hypogea, under the earth, referring to the site of isolation

Gender: feminine

Type strain: DSM 11164; NBRC 106472; NCBR 106472; SEBR 7054

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: U89768 Analyse FASTA

Valid publication: Fardeau ML, Ollivier B, Patel BK, Magot M, Thomas P, Rimbault A, Rocchiccioli F, Garcia JL. Thermotoga hypogea sp. nov., a xylanolytic, thermophilic bacterium from an oil-producing well. Int J Syst Bacteriol 1997; 47:1013-1019.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 47, part 4 of the IJSB. Int J Syst Bacteriol 1998; 48:329-330.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Pseudothermotoga hypogea (Fardeau et al. 1997) Bhandari and Gupta 2017

Risk group: 1

• Synonyms:

  • Name	Kind
    "Pseudothermotoga hypogea" (Fardeau et al. 1997) Bhandari and Gupta 2014	homotypic synonym, not validly published
    Pseudothermotoga hypogea (Fardeau et al. 1997) Bhandari and Gupta 2017	homotypic synonym, validly published under the ICNP

• Notes:
  • The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. The phrase "validly described" is misleading. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281.
  • Thermotoga hypogea is the correct name if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Thermotoga.

Parent taxon: Thermotoga Stetter and Huber 1986

Assigned by: Fardeau ML, Ollivier B, Patel BK, Magot M, Thomas P, Rimbault A, Rocchiccioli F, Garcia JL. Thermotoga hypogea sp. nov., a xylanolytic, thermophilic bacterium from an oil-producing well. Int J Syst Bacteriol 1997; 47:1013-1019.

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Record number: 782645