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Authors |
Year |
Title |
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Elias |
1938 |
Studies of Late Paleozoic ammonoids.
Journal of Paleontology, 12 (1): 86-100, pl.19,20; Tulsa,Oklahoma.
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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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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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Tumanskaia |
1949 |
O permskikh ammoneiakh Srednei Azii.
Byull. Moskovsk. Obshchestva isp. Prirody, Otd. Geologii, 24 (6): 49-84, fig.1-40, pl.1-6; Moskva.
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Tumanskaia |
1963 |
Permskie ammonei tsentral'nogo Pamira i ikh stratigraficheskoe znachenie.
Otd. geol.-geogr. nauk Akad. Nauk SSSR: 1-119, fig.1-48, pl.A,B,1-23; Moskva.
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Zhou |
1987 |
First discovery of Asselian ammonoid fauna in China.
Acta Paleontologica Sinica, 26 (2): 130-148, fig.1-11, pl.1-6; Beijing.
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