Boundary of the Pennsylvanian and Permian(?) in the subsurface Scurry reef, Scurry Country, Texas

Eitemau Tebyg

• Boundary of the Pennsylvanian and Permian(?) in the subsurface Scurry reef, Scurry Country, Texas.
  gan: Heck, W.A
  Cyhoeddwyd: (1952)
• Boundary of the Pennsylvanian and Permian(?) in the subsurface Scurry reef, Scurry County, Texas.
  gan: Henbest, L. G.
  Cyhoeddwyd: (1952)
• The Permian Reef Complex of the Guadalupe Mountains Region, Texas and New Mexico. A Study in Paleoecology.
  gan: Newell, Norman Dennis
  Cyhoeddwyd: (1953)
• Upper Guadalupian Facies. Permian Reef Complex. Guadalupe Mountains, New Mexico and West Texas.
  Cyhoeddwyd: (1954)
• Correlation between surface and subsurface sections of the Ellenburger group of Texas.
  gan: Hendricks, Leo
  Cyhoeddwyd: (1952)