| original |
Pennsylvanian |
|
Oklahoma |
Miller,F.X. Circlettisporites dawsonensis, gen.et sp.nov., from the Dawson Coal of Oklahoma. |
1966 |
| details |
Pennsylvanian |
|
Oklahoma |
Wilson,L.R. et al. Circlettisporites Miller,1966, a synonym of Leschikisporis, Potonie, 1958. |
1967 |
| details |
Missourian |
|
Oklahoma |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 5. Supplement to all Groups (Turmae). |
1970 |
| details |
Rhaetian |
|
Spitsbergen |
Bjaerke,T. et al. Mesozoic palynology of Svalbard. 1. The Rhaetian of Hopen, with a preliminary report on the Rhaetian and Jurassic of Kong Karlsland. |
1977 |
| details |
Desmoinesian |
|
Oklahoma |
Wilson,L.R. Evidence for a new Desmoinesian - Missourian boundary, (Middle Pennsylvanian), in Tulsa County, Oklahoma, USA. |
1984 |