| original |
Givetian |
|
USSR(E.Kazakh Oblast) |
Mikhailova,N.I. The spores of the Givetian Beds of Rudnyi Altai. (In: The Magmatism, geochemistry and Metallogeny of Rudnyi Altai) |
1966 |
| details |
Middle Givetian |
|
Canada(Arctic) |
McGregor,D.C. et al. Middle Devonian miospores from the Cape de Bray, Weatherall, and Hecla Bay Formations of northeastern Melville Islad, Canadian Arctic. |
1982 |
| details |
Middle Givetian |
Early Frasnian |
Scotland(Orkney) |
Marshall,J.E.A. et al. Devonian marine Incursions in the Orcadian Basin, Scotland. |
1996 |