| details |
Famennian |
|
USSR(Bashkir ASSR) |
Chibrikova,E.V. et al. The geological age of the Biyagod Ridge, according to palynological and paleomagnetic data. |
1974 |
| details |
Late Famennian |
|
USSR(Belorussian SSR) |
Kedo,G.I. The palynological characteristics of the Pripyat Depression Tournaisian Stage and the substantia Tion of its Lower boundary. (In: General Problems of the Carboniferous Stratigraphy) |
1978 |
| details |
Late Famennian |
|
Canada(New Brunswick) |
McGregor,D.C. et al. Implications of spore evidence for Late Devonian age of the Piskahegan Group, Southwestern New Brunswick. |
1988 |