Using the culturomics method, two strains were isolated, identified, and characterised following the taxonogenomics concept. Bacillus marasmi sp. nov. strain Marseille-P3556 (= CSURP3556) is isolated from a 13-month-old girl living in Niger. The phylogenetic tree, phenotypic criteria, and genomic analysis described here clearly show that this bacterium is different from previously known bacterial species withstanding in nomenclature and new members of Bacillus genus