1. 
   Microbe Bacillota

   Fictibacillus NameName close to Fictibacillaceae
2. 
   Microbe Bacillota

   Paenibacillaceae NameName close to Fictibacillaceae
3. 
   Microbe Bacillota

   Faecalibacillus MeaningAbout Fictibacillaceae
   54% of healthy people
4. 
   Microbe Bacillota

   Oscillospiraceae bacterium Unnamed strain MeaningAbout Fictibacillaceae
   37% of healthy people
5. 
   Microbe Bacillota

   Bacillaceae MeaningAbout Fictibacillaceae
6. 
   Microbe Armatimonadota

   Fimbriimonadaceae MeaningAbout Fictibacillaceae
7. 
   Microbe Bacillota

   Oscillospiraceae bacterium Marseille-Q3528 Unnamed strain MeaningAbout Fictibacillaceae
   32% of healthy people
8. 
   Microbe Bacillota

   Halolactibacillus MeaningAbout Fictibacillaceae
9. Research International journal of systematic and evolutionary microbiology · 2021

   Vescimonas gen. nov., Vescimonas coprocola sp. nov., Vescimonas fastidiosa sp. nov., Pusillimonas gen. nov. and Pusillimonas faecalis sp. nov. isolated from human faeces.

   Vescimonas coprocolaOscillibacter valericigenes

   MeaningAbout Fictibacillaceae
   PubMed ↗
10. 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 Fictibacillaceae
    PubMed ↗
11. 
    Microbe Bacillota

    Lactobacillaceae MeaningAbout Fictibacillaceae
12. Research Probiotics and antimicrobial proteins · 2026 Review

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

    Faecalibacterium prausnitzii

    MeaningAbout Fictibacillaceae
    PubMed ↗
13. 
    Microbe Armatimonadota

    Fimbriimonadales MeaningAbout Fictibacillaceae
14. Research Frontiers in microbiology · 2017

    New Insights into the Diversity of the Genus Faecalibacterium.

    Faecalibacterium prausnitzii

    MeaningAbout Fictibacillaceae
    PubMed ↗
15. 
    Microbe Bacillota

    Cerasibacillus MeaningAbout Fictibacillaceae
16. Research Scientific reports · 2021

    Characterization and description of Faecalibacterium butyricigenerans sp. nov. and F. longum sp. nov., isolated from human faeces.

    Faecalibacterium butyricigeneransFaecalibacterium prausnitzii

    MeaningAbout Fictibacillaceae
    PubMed ↗
17. Research iScience · 2022

    Exploring clade differentiation of the Faecalibacterium prausnitzii complex.

    Faecalibacterium prausnitzii

    MeaningAbout Fictibacillaceae
    PubMed ↗
18. 
    Microbe Bacillota

    Ruminococcus bicirculans (ex Wegman et al. 2014) MeaningAbout Fictibacillaceae
    55% of healthy people
19. 
    Microbe Bacillota

    Faecalibacterium MeaningAbout Fictibacillaceae
    91% of healthy people
20. Research Scientific reports · 2019 Animal study

    Community profiling of the intestinal microbial community of juvenile Hammerhead Sharks (Sphyrna lewini) from the Rewa Delta, Fiji.

    Klebsiella pneumoniae

    MeaningAbout Fictibacillaceae
    PubMed ↗
21. 
    Microbe Bacillota

    Faecalibacterium prausnitzii MeaningAbout Fictibacillaceae
    90% of healthy people
22. Research Microbiological research · 2026 Review

    Microecological modulation of Faecalibacterium spp.: Prebiotic-mediated cross-feeding networks.

    Akkermansia muciniphila

    MeaningAbout Fictibacillaceae
    PubMed ↗
23. 
    Microbe Bacillota

    Virgibacillus MeaningAbout Fictibacillaceae
24. Research Frontiers in microbiology · 2017

    Functional Characterization of Novel Faecalibacterium prausnitzii Strains Isolated from Healthy Volunteers: A Step Forward in the Use of F. prausnitzii as a Next-Generation Probiotic.

    Faecalibacterium prausnitzii

    MeaningAbout Fictibacillaceae
    PubMed ↗
25. Research Revista Argentina de microbiologia · 2024 Animal study

    [Characterization of a microbial community isolated from honey bee colonies].

    Enterococcus faecium

    MeaningAbout Fictibacillaceae
    PubMed ↗
26. 
    Microbe Bacillota

    Peribacillus MeaningAbout Fictibacillaceae
27. Research Antonie van Leeuwenhoek · 2018

    Description of Mediterraneibacter massiliensis, gen. nov., sp. nov., a new genus isolated from the gut microbiota of an obese patient and reclassification of Ruminococcus faecis, Ruminococcus lactaris, Ruminococcus torques, Ruminococcus gnavus and Clostridium glycyrrhizinilyticum as Mediterraneibacter faecis comb. nov., Mediterraneibacter lactaris comb. nov., Mediterraneibacter torques comb. nov., Mediterraneibacter gnavus comb. nov. and Mediterraneibacter glycyrrhizinilyticus comb. nov.

    Mediterraneibacter gnavus[Ruminococcus] torquesMediterraneibacter faecis

    MeaningAbout Fictibacillaceae
    PubMed ↗
28. 
    Microbe Bacillota

    Filobacillus MeaningAbout Fictibacillaceae
29. 
    Microbe Bacillota

    Vescimonas coprocola MeaningAbout Fictibacillaceae
    55% of healthy people
30. 
    Microbe Planctomycetota

    Fimbriiglobus MeaningAbout Fictibacillaceae
31. 
    Microbe Armatimonadota

    Fimbriimonas MeaningAbout Fictibacillaceae
32. 
    Microbe Bacillota

    Jeotgalibaca MeaningAbout Fictibacillaceae
    under 1% of healthy people
33. 
    Microbe Cyanobacteriota

    Oscillatoriaceae MeaningAbout Fictibacillaceae
34. Research Microorganisms · 2022

    Biodiversity and Physiological Characteristics of Novel Faecalibacterium prausnitzii Strains Isolated from Human Feces.

    Faecalibacterium prausnitzii

    MeaningAbout Fictibacillaceae
    PubMed ↗
35. Research Frontiers in cellular and infection microbiology · 2018

    Alterations in the Abundance and Co-occurrence of Akkermansia muciniphila and Faecalibacterium prausnitzii in the Colonic Mucosa of Inflammatory Bowel Disease Subjects.

    Faecalibacterium prausnitziiAkkermansia muciniphila

    MeaningAbout Fictibacillaceae
    PubMed ↗
36. 
    Microbe Bacillota

    Ruminococcaceae bacterium Marseille-P2935 Unnamed strain MeaningAbout Fictibacillaceae
    under 1% of healthy people
37. 
    Microbe Bacillota

    Ructibacterium MeaningAbout Fictibacillaceae
    under 1% of healthy people
38. 
    Microbe Bacillota

    Piscibacillus MeaningAbout Fictibacillaceae
39. Research PloS one · 2016 Observational

    Altered Gut Microbiota Composition Associated with Eczema in Infants.

    Faecalibacterium prausnitziiMediterraneibacter gnavusStreptococcus salivarius

    MeaningAbout Fictibacillaceae
    PubMed ↗
40. Research International journal of systematic and evolutionary microbiology · 2019

    Faecalibacillus intestinalis gen. nov., sp. nov. and Faecalibacillus faecis sp. nov., isolated from human faeces.

    Faecalibacillus intestinalis

    MeaningAbout Fictibacillaceae
    PubMed ↗

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