Natranaerobaculum is a Gram-positive, obligately alkaliphilic, anaerobic, thermotolerant, halotolerant and spore-forming genus of bacteria from the family of Natranaerobiaceae with one known species (Natranaerobaculum magadiense).[1][2][3][4] Natranaerobaculum magadiense has been isolated from sediments from the Lake Magadi in Kenya.[4][5]