| 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 | Visean | England(Northumberland) | Playford,G. et al. Lower Carboniferous (Visean) spores of the Bonaparte Gulf Basin, Northwestern Australia. Part II. | 1986 | |
| details | Visean | Scotland(Borders) | Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa | 1986 |