| original |
Emsian |
Eifelian |
W.Germany(Rhineland) |
Riegel,W. Spores from the Heisdorf, Lauch and Nohn beds (Emsian and Eifelian) of the Eifel Region, Rhineland |
1973 |
| details |
Late Emsian |
Middle Eifelian |
W.Germany(Rhineland) |
Riegel,W. Spore floras across the Lower/Middle Devonian boundary in the Rhineland (GFR). |
1974 |
| details |
Eifelian |
|
USSR(Russian Platform) |
Arkhangelskaya,A.D. Periplecotriletes tortus at the base of the Eifelian of the Central Russian Plain of the USSR |
1976 |
| details |
Eifelian |
|
W.Germany(Rhineland) |
Riegel,W. Palynological aspects of the Lower/Middle Devonian transition in the Eifel Region. (In: On Devonian stratigraphy and Palaeontology of the Ardennes-Rhenish Mountains and related Devonian matters. W.Ziegle and R.Werner, editors) |
1982 |