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Geolocation
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Author - title
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Year
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| details | Early Devonian | Middle Devonian | Canada(Gaspe Area) | McGregor,D.C. Lower and Middle Devonian spores of eastern Gaspe. | 1965 |
| details | Siegenian | France(Manche) | Rauscher,R. et al. Spores and acritarchs of the Lower Devonian (Siegenian), of Cotentin. | 1965 | |
| details | Siegenian | France(Manche) | Doubinger,J. Palynologic-Planktonic study of some Lower Devonian (Siegenian) samples from the Cotentin. | 1963 |