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Authors |
Year |
Title |
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Popov |
1975 |
Ammonoidea (Ammonoidei). In: Paleontologicheskii Atlas kamennougol'nykh otlozhenii Urala. [In Russian].
Trudy VNIGRI 383: 111-130, pls.35-44, Leningrad (Nedra).
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Ruzhencev |
1939b |
A new genus Parashumardites among Upper Carboniferous ammonites of North America.
Comptes Rendus (Doklady) de l'Academie des Sciences de l'URSS, 23 (8): 850-852, 2 fig.
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Ruzhencev |
1940 |
Opyt estestvennoi sistematiki nekotorykh verkhnepaleozoiskikh ammonitov. (An essay on the natural classification of some late Paleozoic ammonites). [In Russian with English summary].
Trudy Paleontologicheskogo Instituta 11: 1-134, 21 text-figs., 6 pls., Moskva.
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Ruzhencev |
1950 |
Verkhnekamennougol'nye ammonity Urala.
Trudy Paleont. Inst., Akad. Nauk SSSR, 29: 1-220, fig.1-84, pl.1-15; Moskva.
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Ruzhencev |
1955b |
K voprosu o proiskhozhdenii semeystva Shumarditidae.
Dokl. Akad. Nauk SSSR, 103 (6): 1107-1110, fig.1-2; Moskva.
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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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