| link
|
From
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To
|
Geolocation
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Author - title
|
Year
|
|---|---|---|---|---|---|
| details | Autunian | Germany | Doubinger,J. Palynological studies in the Autunian. | 1974 | |
| details | Atokan | Iowa | Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa | 1986 |