| details |
Early Westphalian D |
|
Texas |
Gupta,S. et al. Palynology of the Garner Formation (Strawn Series) of north-central Texas. |
1972 |
| details |
Early Scythian |
Anisian |
United Kingdom |
Warrington,G. British Triassic stratigraphy in the light of palynological studies. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |
| details |
Early Mississippian |
|
Canada(Newfoundland) |
Baird,D.M. et al. Lower Carboniferous sedimentary rocks in Southwestern Newfoundland and their relations to similar strata in Western Cape Breton Island |
1964 |
| details |
Devonian |
|
Canada |
McGregor,D.C. et al. Canadian and Australian Devonian spores: zonation and correlation |
1992 |
| details |
Devonian |
|
Australia |
McGregor,D.C. et al. Canadian and Australian Devonian spores: zonation and correlation |
1992 |