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Trace Fossils: A Field Guide to Selected Localities in Pennsylvanian, Permian, Cretaceous, and Tertiary Rocks of Texas and Related Papers
Bob Frank Perkins
· 1971
The Neogene of the Georgia Coast
Robert W. Frey
· 1973
Trace Fossils of Fort Hays Limestone Member of Niobrara Chalk (Upper Cretaceous), West-central Kansas
Robert W. Frey
· 1970
Paleoecology and Depositional Environment of Fort Hays Limestone Member, Niobrara Chalk (Upper Cretaceous), West-central Kansas
Geoffrey Bruce Newton
, Harrell Le Roy Strimple
, J. M. Cocke
, James L. Lamb
, Peter H. Von Bitter
, Raymond Cecil Moore
, Robert W. Frey
, Robert William Scott
, John H. Beard
· 1970
Excursions in Southeastern Geology: Geological Society of America, 1980 Annual Meeting, Atlanta, Georgia
Geological Society of America
· 1980
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Earth History: An Introduction to the Methods of Historical Geology
Paul R. Pinet
, James Arthur Whitney
, Robert W. Frey
· 1976
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Ichnology of American chalks: the Selma Group (Upper Cretaceous), western Alabama
Robert W. Frey
· 1985
No image available
Paleoecology and Depositional Environment of Fort Hays Limestone Member, Niobrara Chalk Upper Cretaceous, West-Central Kansas
Robert W. Frey
· 1972
No image available
Marine organism-substrate relationships, coastal Georgia
Robert W. Frey
· 1980
No image available
Stratigraphy, Ichnology, and Paleoecology of the Fort Hays Limestone Member of the Niobrara Chalk (Upper Cretaceous) in Trego County, Kansas
Robert W. Frey
· 1969