| details |
Westphalian B |
Westphalian C |
Germany |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| details |
Late Westphalian B |
|
Germany |
Smith,A.H.V. et al. Verrucosisporites (Ibraham) emended, Second Report to CIMP. |
1962 |
| details |
Nd |
|
Nd |
Smith,A.H.V. et al. Genus Verrucosisporites (Ibrahim) Smith and Butterworth. |
1964 |
| details |
Nd |
|
Nd |
Smith,A.H.V. et al. Miospores in the coal seams of the Carboniferous of Great Britain. |
1967 |
| details |
Nd |
|
Nd |
Loboziak,S. The micro and megaspores of the western part of the Bassin Houiller of northern France, stratigraphic applicationsin the study of several boreholes. |
1969 |
| details |
Morrowan |
Desmoinesian |
Iowa |
Ravn,R.L. Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa |
1986 |