tepidimonas fonticaldi tepidimonas fonticaldi tepidimonas fonticaldi is a gram-negative, thermophilic, motile bacterium with a single polar flagellum from the genus tepidimonas, which was isolated from a hot spring water sample from the antun hot spring in taiwan. tepidimonas fonticaldi scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: tepidimonas species: t. fonticaldi binomial name tepidimonas fonticaldichen et al. 2013 type strain at-a2 = bcrc 80391 = kctc 23862 = lmg 26746