| details |
Late Ludlovian |
|
Canada(NWT,Franklin) |
McGregor,D.C. et al. Upper Silurian trilete spores and other microfossils from the Read Bay Formation, Cornwallis Island, Canadian Arctic. |
1978 |
| details |
Wenlockian |
|
S.Ireland(Offaly) |
Holland,C.H. et al. Silurian rocks of the Capard Inlier, County Laois. |
1979 |
| details |
Early Gothlandian |
|
Argentina(San Juan) |
Melendi,D.L. et al. Palynological data on the Ordovician-Silurian boundary of Talacasto, San Juan Province.Part 1. Lower Silurian. |
1982 |
| details |
Early Aptian |
|
Argentina(San Luis) |
PrЎmparo,M.B. New palynological data from the type locality of La Cantera Formation Cretaceous of San Luis Basin, Argentina. |
1988 |
| details |
Late Ordovician |
Llandoverian |
Bulgaria |
Lakova,I. Upper Ordovician to Llandovery land plant spores and acritarchs from Dervent Heights, southwest Bulgaria |
1992 |
| details |
Middle Silurian |
|
Belgium |
Martin,F. Acritarchs: A review |
1993 |
| details |
Llandoverian |
|
Argentina(San Juan) |
Rubinstein,C.V. Palynological investigations in the Lower Paleozoic of Argentina |
1993 |
| details |
Tremadocian |
Arenigian |
Saudi Arabia |
Jachowicz,M. Ordovician acritarch assemblages form Central and Northwestern Saudi Arabia. (In: Palaeozoic Palynostratigraphy of the Kingdom of Saudi Arabia. B.Owens et al, editors) |
1995 |
| details |
Ordovician |
|
Saudi Arabia |
Molyneux,S.G. et al. Palynology of a problematic lower Palaeozoic lithofacies in the central Arabian Basin, Saudi Arabia. |
2000 |