| details |
Early Cretaceous |
|
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Volkheimer,W. et al. Stratigraphic significance of Paleozoic and Mesozoic microflora from Argentina and neighboring countries. |
1976 |
| details |
Aptian |
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|
Volkheimer,W. et al. Palynological study of the Huitrin Formation, Cretaceous of the Neuqu©n Basin, and its type locality. |
1976 |
| details |
Albian |
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Volkheimer,W. et al. Palynological characteristics of the Upper Juarssic and Lower Cretaceous Formations of the Neuqu©n Basin, (Argenine Republic). |
1976 |
| details |
Barremian |
|
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Volkheimer,W. Fossil microfloras. |
1978 |
| details |
Albian |
|
|
Volkheimer,W. Fossil microfloras. |
1978 |
| details |
Barremian |
|
|
Volkheimer,W. Upper Jurassic and Lower Cretaceous microfloras of Latin America. |
1980 |