[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
       Class Deltaproteobacteria Kuever et al. 2006
         Order Desulfuromonadales corrig. Kuever et al. 2006
           Family Geobacteraceae Holmes et al. 2004
             Genus Geobacter Lovley et al. 1995
               1 Geobacter metallireducens Lovley et al. 1995
               2 Geobacter bemidjiensis Nevin et al. 2005
               3 Geobacter bremensis Straub and Buchholz-Cleven 2001
               4 Geobacter chapellei Coates et al. 2001
               5 Geobacter grbiciae Coates et al. 2001
               6 Geobacter hydrogenophilus Coates et al. 2001
               7 Geobacter pelophilus Straub and Buchholz-Cleven 2001
               8 Geobacter psychrophilus Nevin et al. 2005
               9 Geobacter sulfurreducens Caccavo et al. 1995