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Authors |
Year |
Title |
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Gerasimov |
1937 |
Ural'skii otdel permskoi sistemy.
Uchenye zapiski Kazanskogo gosudarstvennogo universiteta, 97, kniga 3-4, geologiia, vyp.8-9): 3-68, pl.1-2; Kazan.
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|
Ruzhencev |
1938 |
Ammonei Sakmarskogo yarusa i ikh stratigraficheskoe znachenie.
Problemy Paleontologii, 4: 187-285, fig.1-19, pl.1-7; Moskva.
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|
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Ruzhencev |
1949 |
Sistematika i evolyutsia semeystv Pronoritidae Frech i Medlicottiidae Karpinsky.
Trudy Palentologicheskogo Instituta Akademiya Nauk SSSR, 19: 1-206, fig.1-88, pl.1-17; Moskva.
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Ruzhencev |
1951 |
Nizhnepermskie ammonity yuzhnogo Urala. 1.Ammonity Sakmarskogo Yarusa.
Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 33: 1-186, fig.1-62, phot.1-8, pl.1-15; Moskva.
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