1. 
   Microbe Fibrobacterota

   Fibrobacter NameName close to Fibrobacteria
2. 
   Microbe Actinomycetota

   Bifidobacterium MeaningAbout Fibrobacteria
   88% of healthy people
3. 
   Microbe Bacillota

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

   Bifidobacterium angulatum MeaningAbout Fibrobacteria
   3.8% of healthy people
5. 
   Microbe Bacillota

   Lentihominibacter MeaningAbout Fibrobacteria
   45% of healthy people
6. 
   Microbe Fusobacteriota

   Fusobacterium MeaningAbout Fibrobacteria
   12% of healthy people
7. 
   Microbe Bacillota

   Faecalibacterium MeaningAbout Fibrobacteria
   91% of healthy people
8. 
   Microbe Bacillota

   Sporobacter MeaningAbout Fibrobacteria
9. 
   Microbe Bacillota

   Filifactor MeaningAbout Fibrobacteria
   under 1% of healthy people
10. 
    Microbe Actinomycetota

    Bifidobacterium adolescentis MeaningAbout Fibrobacteria
    53% of healthy people
11. 
    Microbe Bacillota

    Faecalibacterium prausnitzii MeaningAbout Fibrobacteria
    90% of healthy people
12. 
    Microbe Bacillota

    Lentihominibacter faecis MeaningAbout Fibrobacteria
    39% 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 Fibrobacteria
    PubMed ↗
14. 
    Microbe Actinomycetota

    Brachybacterium MeaningAbout Fibrobacteria
    under 1% of healthy people
15. Research Frontiers in microbiology · 2024

    Metagenome-based characterization of the gut bacteriome, mycobiome, and virome in patients with chronic hepatitis B-related liver fibrosis.

    BlautiaFaecalibacterium

    MeaningAbout Fibrobacteria
    PubMed ↗
16. 
    Microbe Bacillota

    Filobacillus MeaningAbout Fibrobacteria
17. 
    Microbe Bacillota

    Facklamia MeaningAbout Fibrobacteria
    under 1% of healthy people
18. Research International journal of molecular sciences · 2023

    Effect of Liver Fibrosis on Oral and Gut Microbiota in the Japanese General Population Determined by Evaluating the FibroScan-Aspartate Aminotransferase Score.

    Faecalibacterium

    MeaningAbout Fibrobacteria
    PubMed ↗
19. 
    Microbe Bacillota

    Fictibacillus MeaningAbout Fibrobacteria
20. Research Microorganisms · 2025

    Exploratory In Vitro Evaluation of Maternal-Infant Bifidobacterium Strains for Microbiota Modulation in a Pediatric Cystic Fibrosis Context.

    Faecalibacterium

    MeaningAbout Fibrobacteria
    PubMed ↗
21. 
    Microbe Bacteroidota

    Coprobacter MeaningAbout Fibrobacteria
    28% of healthy people
22. Research Acta pharmacologica Sinica · 2026 Review

    Gut microbiota and renal fibrosis: novel mechanistic insights and therapeutic potential.

    Bacteroides ovatusEggerthella lentaBacteroides fragilis

    MeaningAbout Fibrobacteria
    PubMed ↗
23. Research Urogynecology · 2025

    Effect of Reproductive Tract Microbiota on Vaginal Fibroblasts in Pelvic Organ Prolapse.

    Lactobacillus crispatus

    MeaningAbout Fibrobacteria
    PubMed ↗
24. 
    Microbe Actinomycetota

    Bifidobacterium catenulatum MeaningAbout Fibrobacteria
    15% of healthy people
25. 
    Microbe Actinomycetota

    Coriobacteriales bacterium DNF00809 Unnamed strain MeaningAbout Fibrobacteria
    under 1% of healthy people
26. 
    Microbe Pseudomonadota

    Polymorphobacter MeaningAbout Fibrobacteria
27. Research Archives of Razi Institute · 2021

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

    Bifidobacterium longumBifidobacterium adolescentisBifidobacterium animalis

    MeaningAbout Fibrobacteria
    PubMed ↗
28. 
    Microbe Bacillota

    Sporobacterium MeaningAbout Fibrobacteria
29. 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 Fibrobacteria
    PubMed ↗
30. Research Probiotics and antimicrobial proteins · 2026 Review

    Faecalibacterium prausnitzii: Mechanistic Insights and Therapeutic Potential in Host-Microbe Crosstalk.

    Faecalibacterium prausnitzii

    MeaningAbout Fibrobacteria
    PubMed ↗
31. 
    Microbe Bacillota

    Flavonifractor MeaningAbout Fibrobacteria
    71% of healthy people
32. 
    Microbe Bacillota

    Holdemania filiformis MeaningAbout Fibrobacteria
    28% of healthy people
33. 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 Fibrobacteria
    PubMed ↗
34. Research Microbiology spectrum · 2022 Animal study

    Clostridium butyricum and Bifidobacterium pseudolongum Attenuate the Development of Cardiac Fibrosis in Mice.

    Clostridium butyricum

    MeaningAbout Fibrobacteria
    PubMed ↗
35. 
    Microbe Bdellovibrionota

    Peredibacter MeaningAbout Fibrobacteria
36. 
    Microbe Bacillota

    Colidextribacter sp. 210702-DFI.3.9 Unnamed strain MeaningAbout Fibrobacteria
    25% of healthy people
37. 
    Microbe Bacillota

    Anoxybacillus flavithermus MeaningAbout Fibrobacteria
    under 1% of healthy people
38. Research Immunity · 2019 Animal study

    Dysregulated Lung Commensal Bacteria Drive Interleukin-17B Production to Promote Pulmonary Fibrosis through Their Outer Membrane Vesicles.

    Bacteroides

    MeaningAbout Fibrobacteria
    PubMed ↗
39. 
    Microbe Thermodesulfobacteriota

    Pelobacter MeaningAbout Fibrobacteria
40. 
    Microbe Actinomycetota

    Slackia MeaningAbout Fibrobacteria
    21% of healthy people

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