[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 Persephonella Götz et al. 2002
               1 Persephonella marina Götz et al. 2002
               2 Persephonella guaymasensis Götz et al. 2002
               3 Persephonella hydrogeniphila Nakagawa et al. 2003