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| details | Nd | Nd | Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. | 1965 | |
| details | Hauterivian | Late Barremian | W.Germany | Eisenack,A. Catalog of fossil dinoflagellates, hystrichospheres and microfossils | 1964 |
| original | Hauterivian | Late Barremian | E.Germany | Alberti,G. Towards the knowledge of Mesozoic and Early Tertiary dinoflagellates and Hystrichospheres from North and Central Germany, as well as some other European localities. | 1961 |