Carnegie Inst. Washinqton Pub. 508 — Dorf, Part II 



Plate 1 





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FiG. 1 — Locality P3853. Low ridge showing coarse sandstone at summit and underlying sandy shales, lignites, and 

 thin sandstones of lower Lance formation. 





FiQ. 2 — Locality P3853. Nearer view, sliowing excavations in plant-bearing sandstone ledge in the foreground. 



