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Furnish & Saunders |
1971 |
Ammonoids from the Middle Chester Beech Creek Limestone, St. Clair County.
University of Kansas paleontological Contributions, 51: 1-14, fig.1-3, pl.1-2.
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McCaleb, Quinn & Furnish |
1964 |
The ammonoid family Girtyoceratidae in the Southern Midcontinent.
Circular Oklahoma geological Survey, 67: 1-41, 8 figs., pl.1-4; Norman, Okla.
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