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Clarke |
1885 |
On the higher Devonian faunas of Ontario County, New York.
Bulletin, U.S. Geological Survey, 16: 1-80, pl.1-3; Washington.
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Miller |
1938 |
Devonian ammonoids of America.
Special Papers, Geological Society of America, 14: 1-262, fig.1-41, pl.1-39; Baltimore.
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