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McCaleb & Furnish |
1964 |
The Lower Pennsylvanian ammonoid genus Axinolobus in the Southern Midcontinent.
Journal of Paleontology, 38 (2): 249-255, fig.1-3, pl.40; Tulsa,Oklahoma.
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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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