| original |
Late Valanginian |
Early Hauterivian |
|
Volkheimer,W. et al. Systematophora rosenfeldii n. sp., a Lower Cretaceous dinoflagellate from the Neuqu©n Basin, central western Argentina. |
1993 |
| details |
Hauterivian |
Aptian |
|
Peralta,P.I. et al. Paleoenvironmental aspects of the Lower Cretaceous Agrio Format Inferred by dinocyst assemblages Neuqu©n Basin, Argentina |
1997 |
| details |
Valanginian |
Hauterivian |
|
Mostajo,E. et al. Calcareous Nannofossils and dinoflagellate cysts from the Hauterivian Agrio Formation from Neuqu©n, Argentina. |
1997 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |
| details |
Late Valanginian |
Hauterivian |
|
Aguirre-Urreta,M.B. et al. Advances in the biostratigraphy of the Agrio Formation (Lower Cretaceous) of the Neuqu©n Basin, Argentina: ammonites, palynomorphs and calcareous nannofossils. |
1999 |
| details |
Early Cretaceous |
|
|
Peralta,P.I. et al. Early Cretaceous sea level variations and changes in dinocyst assemblages and organic matter components in the Neuqu©n Basin, western Argentina. |
2000 |
| details |
Hauterivian |
Barremian |
|
Peralta,P.I. Paleoenvironmental aspects of the Early Cretaceous from Neuquen Basin, according to marine dinoflagellates. |
2002 |