Upper Pennsylvanian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Upper Pennsylvanian
NTAmes Limestone
 Canyon Group
 Cisco Group
 Holder Formation
 Missourian
 Pine Shadow Member
 Sturgis Formation
 Virgilian
 Wescogame Formation
RTMiddle Pennsylvanian
 Lower Pennsylvanian
 Laborcita Formation
 Wahoo Limestone
 Wild Cow Formation