arthrobacter tecti arthrobacter tecti arthrobacter tecti is a gram-positive, non-spore-forming and non-motile bacterium species from the genus arthrobacter which has been isolated from a biofilm which covered the servilia tomb from the roman necropolis of carmona in carmona, spain. arthrobacter tecti scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: micrococcales family: micrococcaceae genus: arthrobacter species: a. tecti binomial name arthrobacter tectiheyrman et al. 2005 type strain dsm 16407heyrman r-5369iam 15323jcm 21772lmg 22282mcsc2219r-5369