| details |
Middle Pennsylvanian |
Late Pennsylvanian |
Illinois |
Winslow,M.R. Upper Mississippian and Pennsylvanian megaspores and other plant microfossils from Illinois. |
1959 |
| details |
Late Pennsylvanian |
|
Illinois |
Peppers,R.A. Palynology of the McLeansboro Group of Illinois and equivalent strata of Western Kentucky |
1961 |
| details |
Late Pennsylvanian |
|
Kentucky |
Peppers,R.A. Palynology of the McLeansboro Group of Illinois and equivalent strata of Western Kentucky |
1961 |
| details |
Desmoinesian |
|
Kansas |
Leisman,G.A. A Spencerites sporangium and associated spores from Kansas. |
1962 |
| details |
Desmoinesian |
|
Kansas |
Leisman,G.A. Spencerites moorei, comb.nov., from southeastern Kansas. |
1962 |
| details |
Nd |
|
Nd |
Potonie,R. Fossil sporae in situ. Comparison with the sporae dispersae. Addition to the synopsis of the sporae in situ. |
1965 |
| details |
Westphalian C |
Stephanian A |
Europe |
Felix,C.J. et al. A study of stratigraphical and morphological development in the spore genus Spencerisporites. |
1968 |
| details |
Westphalian C |
Stephanian A |
North America |
Felix,C.J. et al. A study of stratigraphical and morphological development in the spore genus Spencerisporites. |
1968 |
| details |
Westphalian D |
|
Kansas |
Burbridge,P.P. et al. Stratigraphic and morphologic development in the devolopment in the spore genus Spencerisporites. |
1976 |
| details |
Stephanian B |
Stephanian C |
Illinois |
Burbridge,P.P. et al. Stratigraphic and morphologic development in the devolopment in the spore genus Spencerisporites. |
1976 |
| original |
Stephanian |
|
Illinois |
Burbridge,P.P. et al. Stratigraphic and morphologic development in the devolopment in the spore genus Spencerisporites. |
1976 |
| details |
Westphalian B |
Stephanian C |
Czechoslovakia |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Westphalian B |
Stephanian |
USSR(Ukrainian SSR) |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Westphalian B |
Stephanian |
Germany |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Westphalian B |
Stephanian |
Poland |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Westphalian D |
Stephanian |
Illinois |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Middle Pennsylvanian |
|
West Virginia |
Kosanke,R.M. Palynology of selected Coal Beds in the proposed Pennsylvanian system stratotype in West Virginia |
1984 |