Codell Sandstone Member  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Codell Sandstone Member
RTNew Mexico
 Colorado
 Kansas
 South Dakota
 Benton Formation
 Carlile Shale
SNIn Carlile Shale. E Colorado, W Kansas, New Mexico and SE South Dakota. Added to Thesaurus in 1989.