1. 
   Microbe Fibrobacterota

   Fibrobacter NameName close to Fibrobacterales
2. 
   Microbe Chloroflexota

   Ktedonobacterales NameName close to Fibrobacterales
3. 
   Microbe Bacillota

   Dysosmobacter MeaningAbout Fibrobacterales
   72% of healthy people
4. 
   Microbe Actinomycetota

   Bifidobacterium MeaningAbout Fibrobacterales
   88% of healthy people
5. 
   Microbe Bacillota

   Faecalibacterium prausnitzii MeaningAbout Fibrobacterales
   90% of healthy people
6. 
   Microbe Bacillota

   Lentihominibacter MeaningAbout Fibrobacterales
   45% of healthy people
7. 
   Microbe Actinomycetota

   Bifidobacterium angulatum MeaningAbout Fibrobacterales
   3.8% of healthy people
8. 
   Microbe Bacillota

   Colidextribacter sp. 210702-DFI.3.9 Unnamed strain MeaningAbout Fibrobacterales
   25% of healthy people
9. 
   Microbe Bacillota

   Faecalibacterium MeaningAbout Fibrobacterales
   91% of healthy people
10. 
    Microbe Bacillota

    Lentihominibacter faecis MeaningAbout Fibrobacterales
    39% of healthy people
11. 
    Microbe Bacillota

    Ruminococcus bicirculans (ex Wegman et al. 2014) MeaningAbout Fibrobacterales
    55% of healthy people
12. 
    Microbe Actinomycetota

    Bifidobacterium catenulatum MeaningAbout Fibrobacterales
    15% of healthy people
13. Research PeerJ · 2026 Animal study

    Gut microbiota dynamics and metabolic pathways associated with bleomycin-induced pulmonary fibrosis progression.

    Akkermansia muciniphila

    MeaningAbout Fibrobacterales
    PubMed ↗
14. 
    Microbe Bacteroidota

    Bacteroidales bacterium CF Unnamed strain MeaningAbout Fibrobacterales
15. 
    Microbe Bacillota

    Fictibacillus MeaningAbout Fibrobacterales
16. 
    Microbe Actinomycetota

    Coriobacteriales bacterium DNF00809 Unnamed strain MeaningAbout Fibrobacterales
    under 1% of healthy people
17. 
    Microbe Bacillota

    Sporobacter MeaningAbout Fibrobacterales
18. 
    Microbe Fusobacteriota

    Fusobacterium MeaningAbout Fibrobacterales
    12% of healthy people
19. 
    Microbe Bacillota

    Filobacillus MeaningAbout Fibrobacterales
20. 
    Microbe Pseudomonadota

    Enterobacterales NameName close to Fibrobacterales
21. Research Frontiers in cellular and infection microbiology · 2020

    The Lung Microbiome of Three Young Brazilian Patients With Cystic Fibrosis Colonized by Fungi.

    Saccharomyces cerevisiae

    MeaningAbout Fibrobacterales
    PubMed ↗
22. Research Saudi journal of gastroenterology · 2023

    Composition of the gut microbiota in patients with inflammatory bowel disease in Saudi Arabia: A pilot study.

    Mediterraneibacter gnavusDorea formicigeneransBifidobacterium adolescentis

    MeaningAbout Fibrobacterales
    PubMed ↗
23. 
    Microbe Bacteroidota

    Coprobacter MeaningAbout Fibrobacterales
    28% of healthy people
24. Research Frontiers in microbiology · 2025

    Lactiplantibacillus sp. LP03 alleviates pulmonary fibrosis by modulating gut microbiota and elevating host palmitoylethanolamide to suppress TGF-β1/Smad2/3-mediated EMT.

    Levilactobacillus brevis

    MeaningAbout Fibrobacterales
    PubMed ↗
25. 
    Microbe Bacillota

    Allobaculum fili MeaningAbout Fibrobacterales
    under 1% of healthy people
26. Research Archives of Razi Institute · 2021

    Bifidobacteriaceae Family Diversity in Gut Microbiota of Patients with Renal Failure.

    Bifidobacterium longumBifidobacterium adolescentisBifidobacterium animalis

    MeaningAbout Fibrobacterales
    PubMed ↗
27. Research Systematic and applied microbiology · 2021 Animal study

    Phylogenetic classification of ten novel species belonging to the genus Bifidobacterium comprising B. phasiani sp. nov., B. pongonis sp. nov., B. saguinibicoloris sp. nov., B. colobi sp. nov., B. simiiventris sp. nov., B. santillanense sp. nov., B. miconis sp. nov., B. amazonense sp. nov., B. pluvialisilvae sp. nov., and B. miconisargentati sp. nov.

    Bifidobacterium longumBifidobacterium bifidum

    MeaningAbout Fibrobacterales
    PubMed ↗
28. 
    Microbe Pseudomonadota

    Polymorphobacter MeaningAbout Fibrobacterales
29. 
    Microbe Actinomycetota

    Brachybacterium MeaningAbout Fibrobacterales
    under 1% of healthy people
30. 
    Microbe Bacillota

    Eubacterium sp. AF34-35BH Unnamed strain MeaningAbout Fibrobacterales
    20% of healthy people
31. 
    Microbe Bacillota

    Filifactor MeaningAbout Fibrobacterales
    under 1% of healthy people
32. Research International journal of systematic and evolutionary microbiology · 2019 Animal study

    Characterization of the phylogenetic diversity of five novel species belonging to the genus Bifidobacterium: Bifidobacterium castoris sp. nov., Bifidobacterium callimiconis sp. nov., Bifidobacterium goeldii sp. nov., Bifidobacterium samirii sp. nov. and Bifidobacterium dolichotidis sp. nov.

    Bifidobacterium bifidum

    MeaningAbout Fibrobacterales
    PubMed ↗
33. 
    Microbe Bacillota

    Ruminococcus sp. AF13-28 Unnamed strain MeaningAbout Fibrobacterales
    18% of healthy people
34. Research Food & function · 2025 Animal study

    Lactobacillus rhamnosus FSJ13 alleviates pancreatic fibrosis in mice via fibroblast growth factor 21.

    Lacticaseibacillus rhamnosus

    MeaningAbout Fibrobacterales
    PubMed ↗
35. Research Nutrients · 2017 Observational

    A Metagenomic and in Silico Functional Prediction of Gut Microbiota Profiles May Concur in Discovering New Cystic Fibrosis Patient-Targeted Probiotics.

    Faecalibacterium prausnitzii

    MeaningAbout Fibrobacterales
    PubMed ↗
36. 
    Microbe Bacillota

    Clostridiaceae bacterium Marseille-Q4143 Unnamed strain MeaningAbout Fibrobacterales
    43% of healthy people
37. 
    Microbe Bacillota

    Dysosmobacter sp. Marseille-Q4140 Unnamed strain MeaningAbout Fibrobacterales
    2.3% of healthy people
38. Research International journal of systematic and evolutionary microbiology · 2020 Animal study

    Characterization of the phylogenetic diversity of two novel species belonging to the genus Bifidobacterium: Bifidobacterium cebidarum sp. nov. and Bifidobacterium leontopitheci sp. nov.

    Bifidobacterium bifidum

    MeaningAbout Fibrobacterales
    PubMed ↗
39. 
    Microbe Bacillota

    Clostridiaceae bacterium AF18-31LB Unnamed strain MeaningAbout Fibrobacterales
    55% of healthy people
40. 
    Microbe Pseudomonadota

    Brachymonas MeaningAbout Fibrobacterales

Research: PubMed, U.S. National Library of Medicine · citations link to PubMed