Exshaw Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Exshaw Formation
RTUpper Devonian
 Mississippian
 Alberta
 Saskatchewan
 Montana
 British Columbia
SNMississippian or Upper Devonian. In SE British Columbia, SW Alberta, Saskatchewan, and NW Montana. Indexed with age as applicable. Added to Thesaurus in 1995.