Ruegenia hadra
- Citations total:
- 3
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| original | Early Aptian | Germany(Schleswig) | Keupp,H. et al. New species from the Ruegenia Willems 1992 genus, (Calcareous dinoflagellate cyst), from the Cretaceous and Tertiary. | 1992 | |
| details | Early Aptian | Germany(Niedersachsen) | Keupp,H. et al. Calcareous phytoplankton from the Barremian/Aptian boundary interval in northwest Germany. | 1994 | |
| details | Nd | Nd | Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. | 1998 |