crenotrichaceae crenotrichaceae crenotrichaceae is a family of environmental bacteria. crenotrichaceae scientific classification domain: bacteria phylum: bacteroidota class: sphingobacteriia order: sphingobacteriales family: crenotrichaceaehansgirg 1888 (approved lists 1980) genera "clonothrix" roze 1896 crenothrix cohn 1870 (approved lists 1980) toxothrix molisch 1925 (approved lists 1980)