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Authors |
Year |
Title |
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Gordon |
1965 |
Carboniferous Cephalopods of Arkansas.
Professional Papers, U.S. Geological Survey, 460: 1-322, fig.1-96, pl.1-32; Washington. [imprint 1964].
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|
|
McCaleb |
1968 |
Lower Pennsylvanian Ammonoids from the Bloyd Formation of Arkansas and Oklahoma.
Special Paper of the geological Society of America, 96: 1-123, fig.1-27, pl.1-12; Boulder,Colorado.
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Miller & Owen |
1944 |
The cephalopod fauna of the Pennsylvanian Union Valley Formation of Oklahoma.
Journal of Paleontology, 18 (5): 417-428,fig.1-4, pl.63-68; Tulsa, Okla.
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|
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Unklesbay |
1962 |
Pennsylvanian Cephalopods of Oklahoma.
Bulletin of the Oklahoma Geological Survey, 96: 1-150, fig.1-16, tab.1-2, pl.1-19; Norman.
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