| original |
Ludlovian |
Early Gedinnian |
Spain |
Cramer,F.H. Palynomorphs from the Siluro-Devonian boundary in northwest Spain |
1966 |
| details |
Nd |
|
Nd |
Rueda-Gaxiola,J. A new systematic morphological classification for fossil pollen and spores. Nomenclature and parataxonomy. |
1969 |
| details |
Middle Gothlandian |
|
S.Ireland(Mayo) |
Smith,D.B. Wenlock plant spores and Tetrads from County Mayo Ireland |
1975 |
| details |
Tournaisian |
Visean |
USSR(Krasnoyarsk Kray) |
Kryukov,A.V. et al. New type section of the Base of the Upper Paleozoic sedimentary complex in the Tunguska Syneclise |
1978 |
| details |
Paleozoic |
|
Nd |
Batten,D.J. Green and Blue-Green algae. 7C-Colonial Chlorococcal. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |