| link
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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 | Caradocian | Algeria | Deunff,J. et al. Palynoplanktonic correlation in the Cambro-Ordovician of the Sahara | 1961 | |
| details | Silurian | Baltic | Collinson,C. et al. North American Paleozoic Chitinozoa | 1955 | |
| details | Pridolian | Baltic Sea | Eisenack,A. New microfossils of the Baltic Silurian.2. | 1932 | |
| original | Llandeilian | Baltic | Eisenack,A. New Mikrofossils of the Baltic Silurian.1. | 1931 |