[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
           Family Aquificaceae Reysenbach 2002
             Genus Hydrogenivirga Nakagawa et al. 2004
               Hydrogenivirga caldilitoris Nakagawa et al. 2004