Don L. Frizzell
Abstract
An account of the stratigraphy, based in large part on deep wells, of the Cretaceous and Tertiary formations, precedes the systematic descriptions of the Foraminifera. Of the 52 species and varieties described from the Mal Paso shale, 15 are new.
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An account of the stratigraphy, based in large part on deep wells, of the Cretaceous and Tertiary formations, precedes the systematic descriptions of the Foraminifera. Of the 52 species and varieties described from the Mal Paso shale, 15 are new.
Key concepts: Foraminifera, Cretaceous, Paleontology, Geology, Stratigraphy, Oil shale, Oceanography, Benthic zone