Death Valley National Park, California. Limestone containing Cyrtospirifer, which is diagnostic of the uppermost Devonian. Circa 1960.
Dates
Date Taken
1960
Summary
Death Valley National Park, California. Limestone containing Cyrtospirifer, which is diagnostic of the uppermost Devonian. A somewhat similar appearing spirifer is present in the lower part of the Tin Mountain Limestone. Circa 1960. Figure 31, U.S. Geological Survey Professional paper 494-A.
Summary
Death Valley National Park, California. Limestone containing Cyrtospirifer, which is diagnostic of the uppermost Devonian. A somewhat similar appearing spirifer is present in the lower part of the Tin Mountain Limestone. Circa 1960. Figure 31, U.S. Geological Survey Professional paper 494-A.
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