| details |
Late Oligocene |
Miocene |
Argentina(Santa Cruz) |
Barreda,V.D. Palynomorph assemblage of the Chenque Formation, Late Oligocene Miocene from Golfo San Jorge Basin, Patagonia, Argentina. Part Polycolporate and Porate pollen |
1997 |
| details |
Late Oligocene |
Middle Miocene |
Argentina(Chubut) |
Barreda,V.D. Pollen and spores biostratigraphy of the Chenque Formation, Late Oligocene?-Miocene from Chubut and Santa Cruz Provinces, Patago Argentina |
1996 |
| details |
Late Oligocene |
Early Miocene |
Argentina(Santa Cruz) |
Barreda,V.D. et al. Palynostratigraphy of Late Oligocene-Miocene deposits in the southern San Jose Gulf area, Santa Cruz Prozince. |
2000 |