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Geolocation
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Author - title
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Year
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| details | Middle Oligocene | W.Germany(Niedersachsen) | Davey,R.J. et al. Appendix to "Studies on Mesozoic and Cainozoic dinoflagellate cysts" | 1969 | |
| details | Middle Oligocene | Nd | Sarjeant,W.A.S. The stratigraphical distribution of fossil dinoflagellates. | 1967 | |
| details | Oligocene | Germany | Davey,R.J. et al. Fossil dinoflagellate cysts attributed to Baltisphaeridium. (In: Studies on Mesozoic and Cainozoic Dinoflagellate Cysts. R.J.Davey, C.Downie, W.A.S.Sarjeant and G.L.Williams) | 1966 |