Kungurian Bibliographic references: International Stratigraphic Chartabsolute age of base: 275600kyerror in absolute age of base: 0%Containing Unit: Cisularianrank: Age/Stage
Asselian Bibliographic references: International Stratigraphic Chartabsolute age of base: 299000kyerror in absolute age of base: 0%Containing Unit: Cisularianrank: Age/Stage status: global
Unterrotliegend in which chronostratigraphic unit is the base: Ghzelianstatus: regionalin which chronostratigraphic unit is the top: Kungurianurl: http://www.stratigraphie.de/std2002/download/STD2002_large.pdf
Cisularian absolute age of base: 299000kyerror in absolute age of base: 0%Containing Unit: Permianrank: Epoch/Series status: global
Sakmarian absolute age of base: 294600kyerror in absolute age of base: 0%Containing Unit: Cisularianrank: Age/Stage status: global
Rio Genua Formation in which chronostratigraphic unit is the base: Sakmarianrank: Formation status: regionalin which chronostratigraphic unit is the top: Sakmarian
Middle Pennsylvanian Bibliographic references: International Stratigraphic Chartabsolute age of base: 311700kyerror in absolute age of base: 0%Containing Unit: Pennsylvanianrank: Epoch/Series status: global
Moscovian Bibliographic references: International Stratigraphic Chartabsolute age of base: 311700kyerror in absolute age of base: 0%Containing Unit: Middle Pennsylvanianrank: Age/Stage status: global
Terrestrial black shale between the Mahoning coal and the Brush Creek marine silty unit Containing Unit: Conemaugh Grouprank: Bed status: regional
Conemaugh Group Bibliographic references: The Sedimentological and Paleontological Characteristics of the Portersville Shale, Conemaugh Group, Southeast Ohioin which chronostratigraphic unit is the base: Moscovianrank: Group status: regionalin which chronostratigraphic unit is the top: Ghzelianurl: http://tin.er.usgs.gov/geology/state/sgmc-unit.php?unit=OHPAc%3B0