Results 251 to 254 of about 9,132 (254)

Is the Dakota Formation Upper or Lower Cretaceous?

Transactions of the Kansas Academy of Science (1903-), 1911
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The Deepwater Upper Cretaceous Lewis Shale

2015
William R. Almon, William C. Dawson, Sally J. Sutton, Frank G. Ethridge, Bellatrix Castelblanco   +4 more
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Upper Cretaceous Ostracoda from Maryland

American Journal of Science, 1925
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CHAPTER XVII. UPPER CRETACEOUS GROUP.

2011
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