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Geolocation
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Author - title
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Year
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| original | Late Aptian | W.Germany(Schleswig) | Eisenack,A. Microplankton from the north German Aptian. | 1958 | |
| original | Late Aptian | W.Germany(Schleswig) | Eisenack,A. Microplankton from the Aptian of North Germany, with some remarks on the fossil dinoflagellates. | 1958 |