details |
Westphalian A |
Westphalian C |
Netherlands |
Dijkstra,S.J. et al. A monographic revision of Carboniferous megaspores with special consideration to South Limburg, (Netherlands). |
1946 |
details |
Westphalian B |
Westphalian C |
Czechoslovakia |
KalibovЎ,M. Megaspores of the Radnice Coal Measure zone of the Kladno-Rakovnik Coal Basin. |
1951 |
details |
Bashkirian |
Moscovian |
USSR(Ukrainian SSR) |
Ishchenko,A.M. et al. Megaspores of the Carboniferous age and their stratigraphic importance |
1962 |
details |
Late Pottsville |
Monongahela |
West Virginia |
Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky |
1947 |
details |
Late Pottsville |
Monongahela |
Kentucky |
Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky |
1947 |
details |
Westphalian C |
Early Stephanian |
Nd |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
details |
Late Desmoinesian |
|
Illinois |
Phillips,T.L. et al. Paleoecology of Middle Pennsylvanian age coal swamps in Southern Illinois/Herrin Coal Member at Sahara Mine No.6. |
1981 |
details |
Nd |
|
Nd |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |
details |
Monongahela |
|
West Virginia |
Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky |
1947 |
details |
Pottsville |
|
West Virginia |
Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky |
1947 |
details |
Monongahela |
|
Kentucky |
Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky |
1947 |
details |
Monongahela |
|
Kentucky |
Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky |
1947 |
details |
Late Pennsylvanian |
|
Pennsylvania |
Cross,A.T. The geology of the Pittsburgh Coal: Stratigraphy, petrology, origin and composition, and geologic interpretation of mining problems. |
1952 |
details |
Late Pennsylvanian |
|
West Virginia |
Cross,A.T. The geology of the Pittsburgh Coal: Stratigraphy, petrology, origin and composition, and geologic interpretation of mining problems. |
1952 |
details |
Late Pennsylvanian |
|
Ohio |
Cross,A.T. The geology of the Pittsburgh Coal: Stratigraphy, petrology, origin and composition, and geologic interpretation of mining problems. |
1952 |
details |
Desmoinesian |
|
Illinois |
Schopf,J.M. Spores from the Herrin (No. 6) Coal Bed in Illinois. |
1938 |
details |
Desmoinesian |
|
Illinois |
Schopf,J.M. Spores characteristic of Illinois Coal No. 6. |
1935 |