| genus |
Acetogenium Leigh & Wolfe, 1983 |
doubtful |
| genus |
Ammonifex Huber & Stetter, 1996 |
accepted |
| genus |
Brockia Perevalova et al., 2013 |
accepted |
| genus |
Caldanaerobacter Fardeau et al., 2004 |
accepted |
| genus |
Caldanaerobius Lee et al., 2008 |
accepted |
| genus |
Calderihabitans Yoneda et al., 2013 |
accepted |
| genus |
Caloribacterium Slobodkina et al., 2012 |
accepted |
| genus |
Carboxydothermus Svetlichny et al., 1991 |
accepted |
| genus |
Desulfovirgula Kaksonen et al., 2007 |
accepted |
| genus |
Gelria Plugge et al., 2002 |
accepted |
| genus |
Moorella, 1994 |
accepted |
| genus |
Tepidanaerobacter Sekiguchi et al., 2006 |
accepted |
| genus |
Thermacetogenium Hattori et al., 2000 |
accepted |
| genus |
Thermanaeromonas Mori et al., 2002 |
accepted |
| genus |
Thermoanaerobacter Wiegel & Ljungdahl, 1982 |
accepted |
| genus |
Thermobacteroides Ben-Bassat & Zeikus, 1983 |
doubtful |
| genus |
Thermodesulfitimonas Slobodkina et al., 2017 |
accepted |