1. 
   Microbe Fibrobacterota

   Fibrobacter NameName close to Fibrobacteraceae
2. 
   Microbe Pseudomonadota

   Caulobacteraceae NameName close to Fibrobacteraceae
3. 
   Microbe Actinomycetota

   Solirubrobacteraceae NameName close to Fibrobacteraceae
4. 
   Microbe Pseudomonadota

   Xanthobacteraceae NameName close to Fibrobacteraceae
5. 
   Microbe Thermodesulfobacteriota

   Geobacteraceae NameName close to Fibrobacteraceae
6. 
   Microbe Actinomycetota

   Ilumatobacteraceae NameName close to Fibrobacteraceae
7. 
   Microbe Bacillota

   Dysosmobacter MeaningAbout Fibrobacteraceae
   72% of healthy people
8. 
   Microbe Actinomycetota

   Bifidobacterium angulatum MeaningAbout Fibrobacteraceae
   3.8% of healthy people
9. 
   Microbe Acidobacteriota

   Vicinamibacteraceae MeaningAbout Fibrobacteraceae
10. 
    Microbe Armatimonadota

    Fimbriimonadaceae MeaningAbout Fibrobacteraceae
11. Research Medicine · 2024

    Causality between gut microbiota, immune cells, and breast cancer: Mendelian randomization analysis.

    Bifidobacterium adolescentis

    MeaningAbout Fibrobacteraceae
    PubMed ↗
12. 
    Microbe Pseudomonadota

    Lysobacteraceae bacterium NML93-0831 Unnamed strain NameName close to Fibrobacteraceae
    under 1% of healthy people
13. 
    Microbe Deferribacterota

    Deferribacteraceae MeaningAbout Fibrobacteraceae
14. Research Systematic and applied microbiology · 2026

    Identification and characterization of four novel gut bacterial taxa: Alvibacillus kangbaii gen. nov., sp. nov., Jutongia huiwenae sp. nov., Flintibacter aciditolerans sp. nov., and Dizhoua hominis gen. nov., sp. nov. isolated from human feces.

    Anaeromassilibacillus senegalensis

    MeaningAbout Fibrobacteraceae
    PubMed ↗
15. 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 Fibrobacteraceae
    PubMed ↗
16. 
    Microbe Verrucomicrobiota

    Chthoniobacteraceae NameName close to Fibrobacteraceae
17. 
    Microbe Bacillota

    Sporobacter MeaningAbout Fibrobacteraceae
18. 
    Microbe Bacillota

    Filifactor MeaningAbout Fibrobacteraceae
    under 1% of healthy people
19. 
    Microbe Pseudomonadota

    Lysobacteraceae bacterium CU05-9 Unnamed strain NameName close to Fibrobacteraceae
    under 1% of healthy people
20. 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 Fibrobacteraceae
    PubMed ↗
21. 
    Microbe Pseudomonadota

    Steroidobacteraceae NameName close to Fibrobacteraceae
22. 
    Microbe Bacillota

    Lentihominibacter MeaningAbout Fibrobacteraceae
    45% of healthy people
23. Research Cell reports · 2024

    Bifidobacteriaceae diversity in the human microbiome from a large-scale genome-wide analysis.

    Bifidobacterium animalis

    MeaningAbout Fibrobacteraceae
    PubMed ↗
24. 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 Fibrobacteraceae
    PubMed ↗
25. 
    Microbe Bacteroidota

    Prolixibacteraceae MeaningAbout Fibrobacteraceae
26. 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 Fibrobacteraceae
    PubMed ↗
27. 
    Microbe Pseudomonadota

    Polymorphobacter MeaningAbout Fibrobacteraceae
28. 
    Microbe Bacillota

    Filobacillus MeaningAbout Fibrobacteraceae
29. 
    Microbe Actinomycetota

    Bifidobacteriaceae MeaningAbout Fibrobacteraceae
30. Research Brazilian journal of microbiology · 2025 Animal study

    Caracterização taxonômica integrativa de comunidades bacterianas e fúngicas de tripas de cupins e areia de folhas.

    Bacillus subtilis

    MeaningAbout Fibrobacteraceae
    PubMed ↗
31. 
    Microbe Bacillota

    Fictibacillus MeaningAbout Fibrobacteraceae
32. Research Microbiome · 2019 Animal study

    Sequence and cultivation study of Muribaculaceae reveals novel species, host preference, and functional potential of this yet undescribed family.

    Bacteroides

    MeaningAbout Fibrobacteraceae
    PubMed ↗
33. 
    Microbe Fusobacteriota

    Fusobacteriaceae MeaningAbout Fibrobacteraceae
34. 
    Microbe Bacillota

    Clostridiaceae bacterium AF18-31LB Unnamed strain MeaningAbout Fibrobacteraceae
    55% of healthy people
35. Research Archives of Razi Institute · 2021

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

    Bifidobacterium longumBifidobacterium adolescentisBifidobacterium animalis

    MeaningAbout Fibrobacteraceae
    PubMed ↗
36. Research Gut microbes reports · 2026

    Isolation and characterization of a novel lytic bacteriophage for Faecalibacterium prausnitzii, a key member of the human gut microbiota.

    Faecalibacterium prausnitzii

    MeaningAbout Fibrobacteraceae
    PubMed ↗
37. 
    Microbe Pseudomonadota

    Ruminobacter MeaningAbout Fibrobacteraceae
38. 
    Microbe Bacillota

    Erysipelotrichaceae bacterium 7770_A6 Unnamed strain MeaningAbout Fibrobacteraceae
    2.5% of healthy people
39. Research Frontiers in cellular and infection microbiology · 2026

    Multi-kingdom metagenomic characterization of the gut bacteriome, mycobiome, and virome in chronic functional constipation.

    Faecalibacterium prausnitzii

    MeaningAbout Fibrobacteraceae
    PubMed ↗
40. Research International journal of systematic and evolutionary microbiology · 2017 Animal study

    Description of two novel members of the family Erysipelotrichaceae: Ileibacterium valens gen. nov., sp. nov. and Dubosiella newyorkensis, gen. nov., sp. nov., from the murine intestine, and emendation to the description of Faecalibaculum rodentium.

    Faecalibacterium

    MeaningAbout Fibrobacteraceae
    PubMed ↗

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