Cymatiosphaera conifera
- Citations total:
- 2
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| details | Silurian | USSR(Siberia) | Tesakov,Y.I. Key Beds of the Silurian of the Gorbiachin River Region. (In: Silur Sibirskoy Platformy;Opornyve Razezy Severo-Zapada Sibirskoy Platformy. B.S.Sokolov et al, editor) | 1980 | |
| details | Late Siegenian | Middle Givetian | Canada(Ontario) | Wicander,R. A catalogue and biostratigraphic distribution of North American Devonian acritarchs. | 1983 |