| original |
Chesterian |
|
Oklahoma |
Wiggins,V.D. Palynomorph fossils from the Goddard Formation (Mississippian) of Southern Oklahoma |
1962 |
| original |
Middle Siegenian |
|
France(Manche) |
Taugourdeau,P. Scolecodontes of the Silurian-Devonian of Cotentin |
1967 |
| original |
Middle Frasnian |
|
France(Garonne,Haute) |
Taugourdeau,P. Scolecodonts of the Frasnian of Boulogne |
1971 |
| original |
Middle Frasnian |
Late Frasnian |
USA(Eastern) |
Curry,R.P. Upper Devonian miospores from the Greenland Gap Group, Allegheny Front, Eastern United States. |
1973 |
| original |
Pragian |
|
France(Mayenne) |
Taugourdeau,P. The Scolecodonts. (In: The Schists and Limestones of the Eodevonian of Saint-Cenere. (In: Massif Armoricain, France. H.Lardeux, editor) |
1976 |
| original |
Wenlockian |
Ludlovian |
Romania |
Taugourdeau,P. et al. Some Scattered Scolecodonts from the Silurian of Roumania |
1983 |