Author
Geological Society of America
19
Illinois State Geological Survey
18
American Association of Petroleum Geologists
16
Geological Survey (U.S.)
10
Kansas Geological Survey
10
Lee, Wallace, 1883-1972
8
Merriam, Daniel F. 1927-2017
8
Rocky Mountain Association of Geologists
8
Wyoming Geological Association
8
Cole, Virgil B.
7
Moore, Raymond C. 1892-1974
7
Brown, L. F. 1928-
5
Colorado Geological Survey
5
Frye, John C. 1912-1982
5
Kottlowski, Frank Edward
5
Leonard, A. Byron 1902-1987
5
Maher, John C. 1914-
5
Society of Economic Paleontologists and Mineralogists. Permian Basin Section
5
University of Nebraska--Lincoln. Conservation and Survey Division
5
Cluff, Robert M.
4
Condra, Geo. E. 1869-1958
4
International Association for Quaternary Research
4
Oviatt, Charles Gifford
4
Pacific Coast Paleogeography Symposium
4
Society of Economic Paleontologists and Mineralogists. Pacific Section
4
Stevenson, D. L.
4
West Texas Geological Society
4
Wheeler, Harry E. 1907-1987
4
Wright, H. E., Jr. 1917-2015
4
Wyoming Geological Association. Annual Field Conference
4
American Association of Petroleum Geologists. Committee on Stratigraphic Correlations
3
Andrews, John T.
3
Armstrong, Augustus K.
3
Barnes, Virgil E. 1903-1998
3
Birkeland, Peter W.
3
Bradley, Raymond S., 1948-
3
Brand, John Paul
3
Bristol, Hubert M.
3
Conkin, Barbara M.
3
DeFord, Ronald K. 1902-1994
3
Decade of North American Geology Project
3
Dickinson, William R.
3
Fassett, James E.
3
Flint, Richard Foster, 1902-1976
3
Four Corners Geological Society
3
Geological Society of America. Rocky Mountain Section
3
Geological Society of America. Rocky Mountain Section. Annual Meeting
3
Geological Society of America. South-Central Section
3
International Congress on Carboniferous Stratigraphy and Geology
3
Jewett, John Mark, 1896-1970
3
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