| details |
Westphalian D |
|
England(Gloucestershire) |
Wagner,R.H. et al. The stratigraphic implications of the Westphalian D, macro and microflora of the Forest of Dean Coalfield, (Gloucestershire), England. |
1972 |
| details |
Westphalian B |
Westphalian D |
England(Gloucestershire) |
Butterworth,M.A. et al. The age of the British Upper Coal Measures with reference to their miospore Content. |
1976 |
| details |
Westphalian B |
Westphalian D |
Wales(Glamorgan) |
Butterworth,M.A. et al. The age of the British Upper Coal Measures with reference to their miospore Content. |
1976 |
| details |
Westphalian D |
|
Europe |
Butterworth,M.A. Upper Carboniferous. (In: Pollen and Spore Biostratigraphy of the Phanerozoic in Northwest Europe) |
1984 |