Armatimonadetes was originally described solely on the basis of environmental 16S rRNA gene clone sequences, and was temporarily titled candidate phylum OP10. However, in 2011 a bacterial strain belonging to the phylum was isolated from an aquatic plant in Japan. The species was named Armatimonas rosea and was the first member of its phylum, genus, and species.
Chthonomonas calidirosea, an aerobic, saccharolytic, obligately thermophilic, motile, non-spore-forming bacterium, strain T49(T), was isolated from geothermally heated soil at Hell's Gate, Tikitere, New Zealand.
^ abTamaki, Hideyuki; Tanaka, Yasuhiro; Matsuzawa, Hiroaki; Muramatsu, Mizuho; Meng, Xian-Ying; Hanada, Satoshi; Mori, Kazuhiro; Kamagata, Yoichi (2010). "Armatimonas rosea gen. nov., sp. nov., a Gram-negative, aerobic, chemoheterotrophic bacterium of a novel bacterial phylum, Armatimonadetes phyl. nov., formally called the candidate phylum OP10". International Journal of Systematic and Evolutionary Microbiology. 61 (Pt 6): 1442–7. doi:10.1099/ijs.0.025643-0. PMID20622056.
^Lee, Kevin C. Y.; Dunfield, Peter F.; Morgan, Xochitl C.; Crowe, Michelle A.; Houghton, Karen M.; Vyssotski, Mikhail; Ryan, Jason L. J.; Lagutin, Kirill; et al. (2010). "Chthonomonas calidirosea gen. nov., sp. nov., an aerobic, pigmented, thermophilic microorganism of a novel bacterial class, Chthonomonadetes classis. nov., of the newly described phylum Armatimonadetes originally designated candidate division OP10". International Journal of Systematic and Evolutionary Microbiology. 61 (Pt 10): 2482–90. doi:10.1099/ijs.0.027235-0. PMID21097641.