Aquifex sp. None 2015 Aquifex sp. None 2015 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Aquificota corrig. Reysenbach 2021 Aquificae (sic) Reysenbach 2021 non Aquificae Reysenbach 2002 Aquificae Reysenbach 2002 emend. Gupta and Lali 2013 non Aquificae Reysenbach 2021 Aquificales Reysenbach 2002 emend. Gupta and Lali 2013 Aquificaceae Reysenbach 2002 emend. Gupta and Lali 2013 Aquifex Huber et al. 1992 Aquifex sp. None 2015 Aquifex Huber et al. 1992 Aquifex pyrophilus Huber et al. 1992 Aquifex aeolicus Huber and Stetter 2001 Aquifex sp. None 2015 No reference is available 2015 No reference is available 2015