marmoricola silvestris marmoricola silvestris marmoricola silvestris is a gram-positive bacterium from the genus marmoricola which has been isolated from alpine forest soil. marmoricola silvestris scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: propionibacteriales family: nocardioidaceae genus: marmoricola species: m. silvestris binomial name marmoricola silvestrisschumann et al. 2018 type strain dsm 104694lmg 30008s20-100