| details |
Early Devonian |
|
England(Herefordshire) |
Richardson,J.B. Abnormal spores and possible interspecific hybridization as a factor in the evolution of Early Devonian land plants |
1996 |
| details |
Silurian |
|
Egypt |
Schrank,E. Paleozoic and Mesozoic palynomorphs from the Foram 1 Well (Western Desert, Egypt). |
1984 |
| original |
Early Llandoverian |
|
Egypt |
Schrank,E. Palaeozoic and Mesozoic palynomorphs from northeast Africa (Egypt and Sudan) with special reference to Late Cretaceous pollen and dinoflagellates. |
1987 |
| details |
Ordovician |
|
China(Anhwei) |
Chen,G. et al. Discovery and research of palaeontological fossils from the metamorphic rock area in South Anhui. |
1998 |
| details |
Early Gothlandian |
|
Canada(Ontario) |
Eley,B.E. et al. Cherts of Southern Ontario |
1989 |
| details |
Llanvirnian |
Caradocian |
Argentina(San Juan) |
Vergel,M.D.M. et al. Ordovician palynomorphs of Argentina: An integrated approach. (Aspects of the Ordovician System in Argentina.) |
2002 |
| details |
Early Arenigian |
|
Argentina(Salta) |
Vergel,M.D.M. et al. Ordovician palynomorphs of Argentina: An integrated approach. (Aspects of the Ordovician System in Argentina.) |
2002 |
| details |
Ashgillian |
Late Llandoverian |
|
Rubinstein,C.V. Silurian acritarchs from South America: A review. |
1996 |