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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 | Telychian | Czechoslovakia(Bohemia) | Dufka,P. Acritarchs of the Rastrites Linnaei zone (Lower Telychian) from the Prague Basin Barrandian, Bohemian Massif. | 1992 | |
| details | Aeronian | Ludfordian | Worldwide | Molyneux,S.G. et al. Paleozoic phytoplankton. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) | 1996 |
| details | Nd | Nd | Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. | 1998 |