Grogan, Eileen D. The geological and biological environment of the Bear Gulch Limestone (Mississippian of Montana, USA) and a model for its deposition - Paris Muséum national d'Histoire naturelle 2002 - pp. 295-315 ilus. Subjects--Topical Terms: DEPOSICIONPALEOCLIMAPALEOECOLOGIATURBIDITAS Subjects--Geographic Terms: ESTADOS UNIDOSMONTANA