Genus "Pseudoclostridium"

Name: "Pseudoclostridium" Zhang et al. 2018

Category, proposed as: genus, gen. nov.

Etymology: Pseu.do.clos.tri’di.um. Gr. neut. adj. pseudes, false; N.L. neut. dim. n. Clostridium, a bacterial genus; N.L. neut. dim. n. Pseudoclostridium, a false Clostridium

Gender, pronunciation (Latin): neuter (stem: Pseudoclostridi-), pse͡u-do-klos-TRI-di-um

Type species: "Pseudoclostridium thermosuccinogenes" (Drent et al. 1995) Zhang et al. 2018

Original publication: Zhang X, Tu B, Dai LR, Lawson PA, Zheng ZZ, Liu LY, Deng Y, Zhang H, Cheng L. Petroclostridium xylanilyticum gen. nov., sp. nov., a xylan-degrading bacterium isolated from an oilfield, and reclassification of clostridial cluster III members into four novel genera in a new Hungateiclostridiaceae fam. nov. Int J Syst Evol Microbiol 2018; 68:3197-3211. 🇨🇳

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 68, part 10 of the IJSEM. Int J Syst Evol Microbiol 2019; 69:10-12.

Nomenclatural status: not validly published

Taxonomic status: synonym (and no standing)

Correct name: Clostridium Prazmowski 1880 (Approved Lists 1980)

• Synonyms:

  • Name	Kind
    Clostridium Prazmowski 1880 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    "Lachnoclostridium" Yutin and Galperin 2013	heterotypic synonym, not validly published
    Anaerobacter Duda et al. 1996	heterotypic synonym, validly published under the ICNP
    "Inflabilis" Prévot 1938	heterotypic synonym, not validly published

• Notes:
  • 🧕 Chuvochina et al. (2023) assigned this genus to the family Acetivibrionaceae Chuvochina et al. 2024. Publication: Chuvochina M, Mussig AJ, Chaumeil PA, Skarshewski A, Rinke C, Parks DH, Hugenholtz P. Proposal of names for 329 higher rank taxa defined in the Genome Taxonomy Database under two prokaryotic codes. FEMS Microbiol Lett 2023; 0:0. 🇦🇺
  • 🧕 Zhang et al. (2018) assigned this genus to the family Hungateiclostridiaceae Zhang et al. 2018. Publication: Zhang X, Tu B, Dai LR, Lawson PA, Zheng ZZ, Liu LY, Deng Y, Zhang H, Cheng L. Petroclostridium xylanilyticum gen. nov., sp. nov., a xylan-degrading bacterium isolated from an oilfield, and reclassification of clostridial cluster III members into four novel genera in a new Hungateiclostridiaceae fam. nov. Int J Syst Evol Microbiol 2018; 68:3197-3211. 🇨🇳
  • 🚂 For the type species of this genus another name is in use, which is affiliated with the genus Clostridium Prazmowski 1880 (Approved Lists 1980). Publication: Drent WJ, Lahpor GA, Wiegant WM, Gottschal JC. Fermentation of Inulin by Clostridium thermosuccinogenes sp. nov., a Thermophilic Anaerobic Bacterium Isolated from Various Habitats. Appl Environ Microbiol 1991; 57:455-462.
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 1.
  • 🧍 Considered not validly published: type species not validly published. Publication: Oren A, Arahal DR, Christensen H, Goker M, Manaia CM, Moore ERB. International Code of Nomenclature of Prokaryotes. Prokaryotic Code (2025 Revision). Int J Syst Evol Microbiol 2026; 76:6979. 🇮🇱
  • 🧍 The distinct name Petroclostridium from the same publication has a similar spelling. Publication: Angell RC, Freund GE, Willett P. Automatic spelling correction using a trigram similarity measure. Information Processing and Management 1983; 19:255-261.

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 0
Total number of child taxa: 1

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Pseudoclostridium thermosuccinogenes" (Drent et al. 1995) Zhang et al. 2018	not validly published	synonym

Parent taxon: Clostridiaceae Pribram 1933 (Approved Lists 1980)

Assigned by: Tindall BJ. The names Hungateiclostridium Zhang et al. 2018, Hungateiclostridium thermocellum (Viljoen et al. 1926) Zhang et al. 2018, Hungateiclostridium cellulolyticum (Patel et al. 1980) Zhang et al. 2018, Hungateiclostridium aldrichii (Yang et al. 1990) Zhang et al. 2018, Hungateiclostridium alkalicellulosi (Zhilina et al. 2006) Zhang et al. 2018, Hungateiclostridium clariflavum (Shiratori et al. 2009) Zhang et al. 2018, Hungateiclostridium straminisolvens (Kato et al. 2004) Zhang et al. 2018 and Hungateiclostridium saccincola (Koeck et al. 2016) Zhang et al. 2018 contravene Rule 51b of the International Code of Nomenclature of Prokaryotes and require replacement names in the genus Acetivibrio Patel et al. 1980. Int J Syst Evol Microbiol 2019; 69:3927-3932. 🇩🇪

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Record number: 520413