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Geolocation
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Author - title
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Year
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| details | Muschelkalk | Europe | Grenfell,H.R. Middle Triassic Muschelkalk acritarchs -some preliminary Thoug | 1989 | |
| details | Nd | Nd | Timofeev,B.V. Systematic classification of organic phytoplankton and spore dispersa. (In: Taxonomy and methods for the study of fossil pollen and spores. V.N.Saks and A.F.Khlonova, editors) | 1964 |