| 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 | Eifelian | USSR(European) | Arkhangelskaya,A.D. Spore-based zonation of the lower part of the Middle Devonian in the central and eastern European part of the USSR. | 1974 | |
| details | Tournaisian | S.Ireland | Higgs,K.T. et al. Stratigraphic and systematic palynology of the Tournaisian of Ireland | 1988 |