Page 1 Page 2 Page 3 104" 105* 108° « ÈDI#]îñï Dukou Section a ºf ...

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R. A., Rohr, D. M., and Grant, R. E., 1990: Leonardian—Wordian (Permian) deposition in the northern Del Norte Mountains, West Texas. U. S. Geol. Surv, Bull.