[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Bacteria Woese et al. 1990 Phylum "Aquificae" Reysenbach 2001 Class "Aquificae" Reysenbach 2002 Order Aquificales Reysenbach 2002 1 Family Aquificaceae Reysenbach 2002 2 Genus Balnearium Takai et al. 2003 3 Genus Desulfurobacterium L'Haridon et al. 1998 4 Genus Thermovibrio Huber et al. 2002