● Botero LM,Brown KB,Brumefield S,Burr M,Castenholz RW,Young M,McDermott TR (2004). Thermobaculum terrenum gen. nov., sp. nov.: a non-phototrophic gram-positive thermophile representing an environmental clone group related to the Chloroflexi (green non-sulfur bacteria) and Thermomicrobia. Arch. Microbiol.181, 269-77.