^Parker, Charles Thomas; Wigley, Sarah; Garrity, George M (1 January 2003). Parker, Charles Thomas; Garrity, George M (eds.). "Taxonomic Abstract for the genera". The NamesforLife Abstracts. doi:10.1601/tx.1058.
^Trujillo, Martha E; Dedysh, Svetlana; Devos, Paul; Hedlund, Brian; Kämpfer, Peter; Rainey, Fred A; Whitman, William B, eds. (17 April 2015). Bergey's Manual of Systematics of Archaea and Bacteria. John Wiley & Sons, Ltd. doi:10.1002/9781118960608. ISBN9781118960608.
