sphingomonas faeni sphingomonas faeni sphingomonas faeni is a gram-negative bacteria from the genus of sphingomonas which has been isolated from indoor dusts from animal sheds in finland. sphingomonas faeni scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: sphingomonadales family: sphingomonadaceae genus: sphingomonas binomial name sphingomonas faenibusse et al. 2003 type strain ccug 48436, cip 108370, dsm 14747, lmg 21379, ma-olki synonyms sphingomonas faenia