| 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 | Early Gondwana | India(Madhya Pradesh) | Potonie,R. Synopsis of the genera of the sporae dispersae. Part 5. Supplement to all Groups (Turmae). | 1970 | |
| details | Middle Siegenian | Eifelian | Spitsbergen | Allen,K.C. Spore assemblages and their stratigraphical application in the Lower and Middle Devonian of North and Central Vestspitbergen | 1967 |
| original | Emsian | Eifelian | Spitsbergen | Allen,K.C. Lower and Middle Devonian spores of North and Central Vestspitsbergen | 1965 |