original |
Givetian |
|
Scotland(Orkney) |
Richardson,J.B. Middle Old Red Sandstone spore assemblages from the Orcadian Basin, northeast Scotland. |
1965 |
original |
Frasnian |
|
New York |
Bonamo,P.M. et al. Tetraxylopteris, Schmidtii. Its fertile Parts and its relationships within the Aneurophytales. |
1967 |
original |
Late Givetian |
Early Frasnian |
Libya |
Moreau-Benoit,A. Spores of the Devonian of Libya. |
1980 |
original |
Middle Eifelian |
Middle Givetian |
Libya |
Moreau-Benoit,A. Middle and Devonian spores of western Libya-systematic palynolostratigraphic range. |
1989 |
original |
Strunian |
|
Bolivia |
Perez-Leyton,M. Middle and Upper Devonian miospores of the Mermejo -La Angostu section, southeastern Bolivia. |
1991 |
original |
Eifelian |
Givetian |
Scotland(Orkney) |
Marshall,J.E.A. Rhabdosporites langii, Geminospora lemurata and Contagisporites optivus: An origin for Heterospory within the Progymnosperms |
1996 |