| 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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| original | Emsian | Middle Eifelian | Canada(Gaspe Area) | McGregor,D.C. Lower and Middle Devonian spores of eastern Gaspe, Canada.1.Systematics. | 1973 |
| original | Emsian | Middle Eifelian | Canada(Quebec) | McGregor,D.C. Lower and Middle Devonian spores of eastern Gaspe, Canada.1.Systematics. | 1973 |
| details | Late Emsian | Middle Eifelian | Canada(Quebec) | McGregor,D.C. Lower and Middle Devonian spores of eastern Gaspe, Canada.11.Biostratigraphy. | 1977 |