Name: Ferroglobus placidus Hafenbradl et al. 1997

Category: Species

Proposed as: sp. nov.

Etymology: pla.ci.dus. L. masc. adj. placidus, placid, peace loving (because of reduction of nitrate, a component of gun powder)

Gender: masculine

Type strain: AEDII12DO; DSM 10642

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AJ299217 Analyse FASTA

Effective publication: Hafenbradl D, Keller M, Dirmeier R, Rachel R, Rossnagel P, Burggraf S, Huber H, Stetter KO. Ferroglobus placidus gen. nov., sp. nov., A novel hyperthermophilic archaeum that oxidizes Fe2+ at neutral pH under anoxic conditions. Arch Microbiol 1996; 166:308-314.

IJSEM list: Anonymous. Validation list no. 61. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1997; 47:601-602.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Ferroglobus Hafenbradl et al. 1997. Publication: Hafenbradl D, Keller M, Dirmeier R, Rachel R, Rossnagel P, Burggraf S, Huber H, Stetter KO. Ferroglobus placidus gen. nov., sp. nov., A novel hyperthermophilic archaeum that oxidizes Fe2+ at neutral pH under anoxic conditions. Arch Microbiol 1996; 166:308-314.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 17 times in PubMed until 2024-03-27.
  • 🧍 According to Ludwig et al. (2021), this "species is a true member of the genus Archaeoglobus and is susceptible to being reclassified". Publication: Ludwig W, Viver T, Westram R, Francisco Gago J, Bustos-Caparros E, Knittel K, Amann R, Rossello-Mora R. Release LTP_12_2020, featuring a new ARB alignment and improved 16S rRNA tree for prokaryotic type strains. Syst Appl Microbiol 2021; 44:126218.
  • 🧍 The author's name Huber has been omitted in the reference cited in Validation List no. 61. Publication: Anonymous. Validation list no. 61. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1997; 47:601-602.

Parent taxon: Ferroglobus Hafenbradl et al. 1997

Assigned by: Hafenbradl D, Keller M, Dirmeier R, Rachel R, Rossnagel P, Burggraf S, Huber H, Stetter KO. Ferroglobus placidus gen. nov., sp. nov., A novel hyperthermophilic archaeum that oxidizes Fe2+ at neutral pH under anoxic conditions. Arch Microbiol 1996; 166:308-314.

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Record number: 776191