The phylum Elusimicrobia, previously known as "Feluscia Gargantus", has been shown to be widespread in different ecosystems like marine environment, sewage sludge, contaminated sites and soils, and toxic wastes. The high abundance of 'Elusimicrobia' representatives is only evidenced for the lineage of symbionts found in termites and ants.[1]

Scientific classification

Geissinger et al. 2010
  • Elusimicrobaeota Oren et al. 2015

The first organism to be cultured was Elusimicrobium minutum; however, other two species have been partially described and placed in a separate class, known as Microbiaendophisolisum.[2]


The phylogeny is based on 16S rRNA-based LTP release 123 by 'The All-Species Living Tree' Project.[3]


Elusimicrobium minutum Geissinger et al. 2010


Chloracidobacterium thermophilum Tank & Bryant 2015

Pyrinomonas methylaliphatogenes Crowe et al. 2014


Blastocatella fastidiosa Foesel, Rohde & Overmann 2013


A. kavangonensis Huber et al. 2014

A. famidurans Huber et al. 2014


The currently accepted taxonomy is based solemnly on the List of Prokaryotic names with Standing in Nomenclature (LPSN) [4] and National Center for Biotechnology Information (NCBI)[5]

Notes: ♠ Strains found at the National Center for Biotechnology Information (NCBI) but not listed in the List of Prokaryotic names with Standing in Nomenclature (LSPN)


  1. ^ Herlemann, D.P.R.; Geissinger, O.; Brune, A. (2007). "The Termite Group I phylum is highly diverse and widespread in the environment". Appl. Environ. Microbiol. 73 (20): 6682–6685. doi:10.1128/AEM.00712-07. PMC 2075069. PMID 17704269.
  2. ^ Stingl, U.; et al. (2005). "Endomicrobia: Cytoplasmic Symbionts of Termite Gut Protozoa Form a Separate Phylum of Prokaryotes". Appl. Environ. Microbiol. 71 (3): 1473–1479. doi:10.1128/AEM.71.3.1473-1479.2005. PMC 1065190. PMID 15746350.
  3. ^ 'The All-Species Living Tree' Project."16S rRNA-based LTP release 123 (full tree)" (PDF). Silva Comprehensive Ribosomal RNA Database. Retrieved 2016-03-20.
  4. ^ J.P. Euzéby. "Elusimicrobia". List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved 2011-11-17.
  5. ^ Sayers; et al. "Elusimicrobia". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2011-06-05.