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Authors |
Year |
Title |
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Leonova & Dmitriev |
1989 |
Rannepermskie ammonoidei Yugo-Vostochnogo Pamira.
Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 235: 1-198, fig.1-79, pl.1-16; Moskva.
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Miller & Furnish |
1940c |
Permian ammonoids of the Guadalupe Mountain Region and adjacent areas.
Special Papers of the Geological Society of America, 26: 1-242, fig.1-59, pl.1-44; Baltimore.
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Miller |
1945c |
Late Paleozoic ammonoids from the Chinati Mountains of West Texas.
Journal of Paleontology, 19 (4): 341-346, fig.1-3, pl.50; Tulsa,Oklahoma.
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Tharalson |
1984 |
Revision of the Early Permian ammonoid family Perrinitidae.
Journal of Paleontology, 58 (3): 804-833, fig.1-24, 1tab.; Lawrence, Kansas.
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