link
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Geolocation
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Author - title
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Year
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details | Late Llandoverian | Baltic | Downie,C. et al. On the interpretation and status of some Hystrichosphere genera. | 1963 | |
details | Late Llandoverian | Baltic | Cramer,F.H. Distribution of selected Silurian acritarchs an account of the palynostratigraphy and paleogeography of selected Silurian acritarch Taxa | 1970 |