Stratigraphy of the Blach Ranch-Crystal Falls Section (Upper Pennsylvanian), Northern Stephens County, Texas.

Ижил төстэй зүйлс

• A stratigraphic Datum. Cisco group (Upper Pennsylvanian). Brazos and Trinity Valleys, North-Central Texas.
  -н: Brown, L.F
  Хэвлэсэн: (1962)
• Boundary of the Pennsylvanian and Permian(?) in the subsurface Scurry reef, Scurry County, Texas.
  -н: Henbest, L. G.
  Хэвлэсэн: (1952)
• Upper Pennsylvanian Conemaugh Corals from Ohio.
  -н: Bebout, D. G.
  Хэвлэсэн: (1966)
• Trace Fossils from two Upper Pennsylvanian sandstones in Kansas.
  -н: Bandel, Klaus
  Хэвлэсэн: (1967)
• The Stratigraphy of the older Pennsylvanian Rocks of North-eastern Oklahoma.
  -н: Ohern, Daniel Webster
  Хэвлэсэн: (1910)