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Era: Silurian
Institution
Collection
Subject
63
Geology, Stratigraphic
42
Geology
32
Paleontology
11
Graptolites
10
Corals, Fossil
6
Petroleum Geology
more ...
6
Rugosa
5
Brachiopoda, Fossil
5
Petrology
5
Reefs
5
Stratigraphic correlation
3
Orogenic belts
3
Volcanic ash, tuff, etc
2
Animals, Fossil
2
Bivalves, Fossil
2
Bryozoa, Fossil
2
Fossils
2
Geology, Structural
2
Gold ores
2
Intrusions (Geology)
2
Oakdale Formation
2
Orogeny
2
Ostracoda, Fossil
2
Paxton Group
1
Alaska
1
Borings
1
Carbonate rocks
1
Colorado
1
Corals
1
Evaporites
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Author
31
Geological Survey (U.S.),
17
Geological Survey (U.S.)
6
Churkin, Michael, 1932-
6
Ryder, Robert T.
5
Epstein, Jack Burton, 1935-
4
Epstein, Anita G., 1937-
more ...
4
Kentucky Geological Survey
4
Merriam, C. W. 1905-1974
4
Merriam, C. W. 1905-1974,
3
Berdan, Jean Milton
3
Carter, Claire,
2
Berdan, Jean Milton,
2
Berry, William B. N.
2
Carter, Claire
2
Jennings, D. S. 1885-
2
Massachusetts. Department of Public Works
2
McDowell, Robert C., 1935-
2
Michigan Basin Geological Society
2
Michigan Basin Geological Society. Field Conference
2
Michigan Basin Geological Society. Field Conference (1974)
2
Moench, Robert Hadley, 1926-
2
Muffler, L. J. Patrick 1937-
2
Mullens, Thomas E. 1924-
2
Oliver, William Albert, 1926-2005
2
Oliver, William Albert, 1926-2005,
2
Pavlides, Louis, 1921-
2
Pennsylvania. Bureau of Topographic and Geologic Survey
2
Peterson, Warren Lee, 1925-
2
Pojeta, John, Jr
2
Rickard, Lawrence V.
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Language
Genre
Literary Form
Region
11
New York (State)
8
Alaska
8
Maine
6
Appalachian Basin
6
Nevada
5
Pennsylvania
more ...
4
Idaho
4
Massachusetts
3
California
3
Kentucky
3
North America
2
Blaine County
2
China
2
Connecticut
2
Custer County
2
Florida
2
Georgia
2
Great Basin
2
Machias Region
2
Michigan
2
Middle Atlantic States
2
New England
2
New Jersey
2
Northeastern States
2
Oakdale Formation
2
Ohio
2
Paxton Group
2
Pioneer Mountains
2
Québec (Province)
2
Roberts Mountains Formation (Nev. and Utah)
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Call Number
Year of Publication