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From
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To
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Geolocation
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Author - title
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Year
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| details | Ypresian | Belgium | De Coninck,J. Planktonic microfossils from Ypresian Sand at Merelbeke. Dinophyceae and acritarcha. | 1965 | |
| details | Early Oligocene | Baltic | Eisenack,A. Hystricosphaeres | 1963 | |
| details | Early Oligocene | Baltic | Eisenack,A. Some microfossils of the Tertiary in Samland and north Germany. | 1965 |