A concise geologic time scale حسب Ogg, James G., Ogg, Gabi, Gradstein, F. M.

Principles of sedimentology and stratigraphy حسب Boggs, Sam

Lexicon of Philippine stratigraphy حسب Pena, Rolando E.

The rise of animals evolution and diversification of the kingdom animalia

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Principles of sedimentology and stratigraphy. حسب Boggs, Sam, Jr

Biostratigraphy microfossils and geological time حسب McGowran, Brian

Footprints in the ash the explosive story of Mount St. Helens حسب Morris, John D.

Composition, age, and petrogenesis of late Cretaceous intrusive rocks in the central Big Belt Mountains, Broadwater and Meagher counties, Montana حسب Du Bray, E. A.

Structural geology of western part of Lemhi Range, east-central Idaho حسب Tysdal, Russell G.

Geology and paleontology of five cores from Screven and Burke counties, eastern Georgia