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Geolocation
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Author - title
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Year
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| details | Middle Jurassic | France | Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. | 1994 | |
| details | Lutetian | Belgium | De Coninck,J. Organic-walled microfossils of the Bartonian Priabonian and Early Rupelian from the Kallo borehole; significant species from the Woensdricht, Kallo and Mol boreholes | 1995 |