| details |
Pragian |
Emsian |
|
Grahn,Y. et al. Silurian and Lower Devonian chitinoan biostratigraphy of the Parana Basin in Brazil and Paraguay. |
2000 |
| details |
Pragian |
Emsian |
Brazil(Goias) |
Grahn,Y. et al. Silurian and Lower Devonian chitinoan biostratigraphy of the Parana Basin in Brazil and Paraguay. |
2000 |
| details |
Pragian |
Emsian |
|
Grahn,Y. et al. Silurian and Lower Devonian chitinoan biostratigraphy of the Parana Basin in Brazil and Paraguay. |
2000 |
| details |
Lochkovian |
Pragian |
Paraguay |
Grahn,Y. et al. Silurian and Lower Devonian chitinoan biostratigraphy of the Parana Basin in Brazil and Paraguay. |
2000 |
| details |
Late Lochkovian |
Pragian |
|
Grahn,Y. Devonian chitinozoan biozones of Western Gondwana. |
2005 |
| details |
Pragian |
|
Argentina(Salta) |
Grahn,Y. Devonian chitinozoan biozones of Western Gondwana. |
2005 |
| details |
Late Lochkovian |
Pragian |
|
Grahn,Y. Devonian chitinozoan biozones of Western Gondwana. |
2005 |
| details |
Late Lochkovian |
Pragian |
Bolivia |
Grahn,Y. Devonian chitinozoan biozones of Western Gondwana. |
2005 |
| details |
Late Lochkovian |
|
Argentina(Salta) |
Grahn,Y. Devonian chitinozoan biozones of Western Gondwana. |
2005 |
| details |
Late Lochkovian |
Pragian |
Bolivia |
Grahn,Y. Devonian chitinozoan biozones of Western Gondwana. |
2005 |