Name: Tritonibacter horizontis Klotz et al. 2018

Category: Species

Proposed as: sp. nov.

Etymology: ho.ri.zon’tis. L. gen. masc. n. horizontis, of the horizon, referring to the Deep Water Horizon oil spill

Gender: masculine

Type strain: DSM 101689; LMG 29740; O3.65

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: LPUY01000004 Analyse FASTA

Valid publication: Klotz F, Brinkhoff T, Freese HM, Wietz M, Teske A, Simon M, Giebel HA. Tritonibacter horizontis gen. nov., sp. nov., a member of the Rhodobacteraceae, isolated from the Deepwater Horizon oil spill. Int J Syst Evol Microbiol 2018; 68:736-744.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 68, part 3 of the IJSEM. Int J Syst Evol Microbiol 2018; 68:1823-1824.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Epibacterium horizontis (Klotz et al. 2018) Liang et al. 2021

• Synonyms:

  • Name	Kind
    Epibacterium horizontis (Klotz et al. 2018) Liang et al. 2021	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Tritonibacter Klotz et al. 2018. Publication: Klotz F, Brinkhoff T, Freese HM, Wietz M, Teske A, Simon M, Giebel HA. Tritonibacter horizontis gen. nov., sp. nov., a member of the Rhodobacteraceae, isolated from the Deepwater Horizon oil spill. Int J Syst Evol Microbiol 2018; 68:736-744.
  • ❗ Tritonibacter horizontis is the correct name instead 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 Tritonibacter.
  • 🎓 Name mentioned 1 time in PubMed until 2024-03-27.
  • 🧍 According to Ludwig et al. (2021), this "species affiliates away from its type species and may be reclassified as a new genus". 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 phylogenetic position of this species was determined in a genome-scale analysis by Hördt et al. (2020). Publication: Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468.

Parent taxon: Tritonibacter Klotz et al. 2018

Assigned by: Klotz F, Brinkhoff T, Freese HM, Wietz M, Teske A, Simon M, Giebel HA. Tritonibacter horizontis gen. nov., sp. nov., a member of the Rhodobacteraceae, isolated from the Deepwater Horizon oil spill. Int J Syst Evol Microbiol 2018; 68:736-744.

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Record number: 796365