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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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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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|
Sheng |
1987 |
Carboniferous ammonoids from the Jingyuan district, Gansu.
Bull. Inst. Geol., Chinese Acad. Geol. Sci., 16: 143-193, fig.1-29, pl.1-5; Beijing.
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Smith |
1903 |
The Carboniferous Ammonoids of America.
Monography, U.S. geological Survey, 42: 1-211, pl.1-29; Washington.
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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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Zakharov |
1969 |
Novye dannye k stratigrafii Namiura po ammonoideiam khr. Karachatyr.
Doklady Akademii Nauk SSSR 1969, 185 (1): 149-151, 1 text-fig., Moskva.
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