Laramie Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Laramie Formation
RTWyoming
 Montana
 Colorado
 Kansas
 Arizona
 South Dakota
SNOverlies Fox Hills Formation; unconformably underlies Denver Formation. Denver Basin region of E Colorado. Also in Arizona, N Colorado, Kansas, Montana, South Dakota and Wyoming.