| details |
Middle Purbeckian |
Late Purbeckian |
England(Sussex) |
Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. |
1958 |
| details |
Valanginian |
Barremian |
England(Sussex) |
Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. |
1958 |
| details |
Purbeckian |
|
England(Dorset) |
Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. |
1958 |
| details |
Valanginian |
Barremian |
England(Dorset) |
Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. |
1958 |
| details |
Valanginian |
Barremian |
England(Isle of Wight) |
Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. |
1958 |
| details |
Tithonian |
|
Nd |
Hughes,N.F. Paleontological evidence for the age of the English Wealden. |
1958 |
| details |
Wealden |
|
Belgium |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |
| details |
Wealden |
|
Belgium |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |