ornithinimicrobium ornithinimicrobium ornithinimicrobium is a gram-positive, non-spore-forming and non-motile bacterial genus from the family ornithinimicrobiaceae. the genus was formerly in the family intrasporangiaceae, but later genomic data caused it to be reclassified in 2018. ornithinimicrobium scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: micrococcales family: intrasporangiaceae genus: ornithinimicrobiumgroth et al. 2001 type species ornithinimicrobium humiphilumgroth et al. 2001 species o. algicola ramaprasad et al. 2015 o. avium lee et al. 2022 o. cavernae zhang et al. 2019 o. cerasi fang et al. 2020 o. ciconiae lee et al. 2022 o. flavum fang et al. 2017 o. humiphilum groth et al. 2001 o. kibberense mayilraj et al. 2006 o. laminariae cao et al. 2022 o. murale kämpfer et al. 2013 o. panacihumi huo et al. 2021 o. pekingense liu et al. 2008 o. pratense guo et al. 2020 o. tianjinense liu et al. 2013