| original |
Desmoinesian |
|
Iowa |
Wilson,L.R. et al. Descriptions of some unassigned plant microfossils from the Des Moines Series of Iowa. |
1940 |
| details |
Nd |
|
Nd |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| original |
Nd |
|
Nd |
Hoffmeister,W.S. et al. Mississippian plant spores from the Hardinsburg Formation of Illinois and Kentucky. |
1955 |
| details |
Westphalian |
Stephanian |
France(Moselle) |
Bharadwaj,D.C. The palynological investigations of the Saar Coals. Part 1-Morphography of sporae dispersae. |
1957 |
| details |
Westphalian |
Stephanian |
W.Germany(Saarland) |
Bharadwaj,D.C. The palynological investigations of the Saar Coals. Part 1-Morphography of sporae dispersae. |
1957 |
| details |
Desmoinesian |
|
Iowa |
Wilson,L.R. Photographic Illustrations of fossil spore types from Iowa. |
1958 |