| original |
Stephanian C |
|
W.Germany(N.Rhine) |
Bharadwaj,D.C. et al. Microfloristic evidence on the boundary between the Carboniferous and the Permian systems in Pfalz (W.Germany). |
1957 |
| details |
Late Devonian |
Permian |
Nd |
Pi©rart,P. Third report on Lycospora |
1962 |
| details |
Carboniferous |
|
Nd |
Alpern,B. et al. Study of the genus Lycospora, Schopf, Wilson and Bentall. |
1963 |
| details |
Namurian |
Stephanian |
Nd |
Pi©rart,P. Lycospora, Schopf, Wilson and Bentall. (Report of CIMP Working Group No 4) |
1964 |
| details |
Stephanian C |
|
Germany |
Somers,Y. Revision of the genus Lycospora, Schopf, Wilson and Bentall. |
1972 |
| details |
Stephanian |
Autunian |
Poland |
Jerzykiewicz,J. Spore-pollen assemblages of the Carboniferous/Permian boundary of the Okrzeszyn area. |
1975 |
| details |
Westphalian B |
|
England(Yorkshire) |
Thomas,B.A. The finestructure of the Carboniferous Lycophyte microspore Lycospora perforata, Bharadwaj and Venkatachala |
1988 |
| details |
Early Westphalian B |
|
England(Yorkshire) |
Hemsley,A.R. et al. Ultrastructure and relationships of Upper Carboniferous spores from Thorpe Brickworks, West Yorkshire, United Kingdom. |
1991 |
| details |
Nd |
|
Nd |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Westphalian B |
|
England(Yorkshire) |
Kedves,M. Tranmission Electron Microscopy of the Fossil Spores. |
1996 |