| details |
Neocomian |
Early Tortonian |
Delaware |
Groot,J.J. et al. Plant microfossils and age of nonmarine Cretaceous sediments of Maryland and Delaware. |
1960 |
| details |
Sinemurian |
Kimmeridgian |
Scotland(Sutherland) |
Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. |
1958 |
| details |
Middle Purbeckian |
Late Purbeckian |
England(Sussex) |
Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. |
1958 |
| details |
Toarcian |
Bathonian |
England(Yorkshire) |
Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. |
1958 |
| details |
Early Bajocian |
Bathonian |
England(Northampton) |
Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. |
1958 |
| original |
Bathonian |
|
England(Yorkshire) |
Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. |
1958 |
| details |
Bathonian |
|
England(Cambridgeshire) |
Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. |
1958 |