1. Smithellaceae;Bergey's Manual of Systematics of Archaea and Bacteria;2021-03-31
2. Desulfomonilaceae;Bergey's Manual of Systematics of Archaea and Bacteria;2021-03-26
3. S
yntrophaceae;Bergey's Manual of Systematics of Archaea and Bacteria;2020-03-20
4. S
yntrophus;Bergey's Manual of Systematics of Archaea and Bacteria;2019-09-16
5. S
mithella;Bergey's Manual of Systematics of Archaea and Bacteria;2019-09-09