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Authors |
Year |
Title |
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Gordon |
1960 |
Some American Midcontinent Carboniferous Cephalopods.
Journal of Paleontology 34: 133-151, pls.27,28, 3 text-figs.,Tulsa, OK.
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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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Plummer & Scott |
1937 |
Upper Paleozoic ammonites in Texas.
The geology of Texas, vol.3 pt.1, Bull. Texas. Univ., 3701: 1-516, fig.1-88, pl.1-41; Austin, Texas.
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|
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Shigeta, Zakharov & Mapes |
2001 |
Origin of the Ceratitida (Ammonoidea) inferred from the early internal shell features.
Paleontological Research, 5 (3): 201-213, 7 fig.
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Titus |
1993 |
Biostratigraphic implications of the first North American occurrence of the Upper Mississippian ammonoid Platygoniatites.
Journal of Paleontology, 67 (2): 310-312, 1tab.; Lawrence,Kansas.
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