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Nikolaeva |
1999 |
Ammonoidei iz Bogdanovskogo gorizonta (Srednii Karbon) Yuzhnogo Urala. [In Russian, with English summary: Ammonoids of the Bogdanovsky Horizon (Middle Carboniferous) of the South Urals].
Paleontologicheskii Zhurnal, 1999 (1): 12-19, 2 figs. 1 pl., Moskva.
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