propionibacteriaceae propionibacteriaceae the propionibacteriaceae are a family of gram-positive bacteria found in dairy products or in the intestinal tracts of animals and living in the pores of humans. propionibacteriaceae scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: propionibacteriales family: propionibacteriaceaedelwiche 1957 (approved lists 1980) type genus propionibacteriumorla-jensen 1909 (approved lists 1980) genera acidipropionibacterium scholz and kilian 2016 aestuariimicrobium jung et al. 2007 arachnia pine and georg 1969 (approved lists 1980) auraticoccus alonso-vega et al. 2011 brooklawnia rainey et al. 2006 cutibacterium scholz and kilian 2016 desertihabitans sun et al. 2019 enemella bernard et al. 2020 granulicoccus maszenan et al. 2007 luteococcus tamura et al. 1994 mariniluteicoccus zhang et al. 2014 microlunatus nakamura et al. 1995 micropruina shintani et al. 2000 naumannella rieser et al. 2012 "nigeribacterium" khare et al. 2021 parenemella bernard et al. 2020 propionibacterium orla-jensen 1909 (approved lists 1980) propionicicella bae et al. 2006 propioniciclava sugawara et al. 2011 propionicimonas akasaka et al. 2003 propioniferax yokota et al. 1994 propionimicrobium stackebrandt et al. 2002 raineyella pikuta et al. 2016 tessaracoccus maszenan et al. 1999 vaginimicrobium diop et al. 2020