| original |
Callovian |
|
|
Volkheimer,W. et al. Stratigraphic palynology of the Middle Jurassic Lotena Formation, (Neuqu©n Basin). (In: The Geology of the Province of San Luis) |
1981 |
| original |
Callovian |
|
|
Volkheimer,W. et al. Stratigraphic distribution of Jurassic and Cretaceous palynomorphs in the Andean Realm and neighbouring areas of Southern South America, with special consideration of the Neuqu©n Basin. |
1981 |
| original |
Middle Callovian |
|
|
Volkheimer,W. et al. Comments on range chart: Palynomorphs. (In: South America and Antarctic Peninsula. A.C.Riccardi et al. (In: Jurassic taxa ranges and correlation charts for the Circum Pacific. G.E.G.Westerman and A.C.Riccardi, editor) |
1990 |