| details |
Ashgillian |
|
Bulgaria |
Kalvacheva,R.K. Acritarch stratigraphy of Lower Paleozoic formations in the West Balkan Mountains, Bulgaria. |
1978 |
| details |
Ashgillian |
|
Belgium |
Martin,F. The Upper Ordovician and Lower Silurian at Deerlijk (Belgium) |
1973 |
| original |
Aquitanian |
|
India(Gujarat) |
Kar,R.K. Azolla aglochidia, sp.nov. A new species of Azolla from Khari Nadi Formation, (Miocene) of Kutch, India and its biostratigraphic importance. |
1979 |
| original |
Aptian |
|
Utah |
Gupta,S. et al. Palynological age of the upper part of the Brushy Basin Member of the Morrison Formation near Blanding, southeastern Utah, USA. |
1979 |
| original |
Aptian |
Albian |
USSR(WSL) |
Voitsel,Z.A. et al. Aptian-Albian. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Aptian |
Albian |
USSR(WSL) |
Voitsel,Z.A. et al. Aptian-Albian. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Aptian |
Albian |
USSR(WSL) |
Voitsel,Z.A. et al. Aptian-Albian. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Aptian |
Albian |
USSR(WSL) |
Voitsel,Z.A. et al. Aptian-Albian. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Aptian |
Albian |
USSR(WSL) |
Voitsel,Z.A. et al. Aptian-Albian. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Aptian |
Albian |
USSR(WSL) |
Voitsel,Z.A. et al. Aptian-Albian. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Aptian |
Albian |
USSR(WSL) |
Voitsel,Z.A. et al. Aptian-Albian. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Aptian |
Albian |
USSR(WSL) |
Voitsel,Z.A. et al. Aptian-Albian. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Aptian |
Albian |
USSR(WSL) |
Voitsel,Z.A. et al. Aptian-Albian. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Aptian |
Albian |
USSR(WSL) |
Voitsel,Z.A. et al. Aptian-Albian. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| details |
Aptian |
Albian |
South Dakota |
Cahoon,E.J. Lower Cretaceous pollen and spores from the Southern Black Hills |
1965 |
| details |
Aptian |
|
|
Volkheimer,W. et al. Palynological study of the Huitrin Formation, Cretaceous of the Neuqu©n Basin, and its type locality. |
1976 |
| details |
Aptian |
Albian |
Alaska(North Slope) |
Haga,H. et al. Palynology report of outcrop samples from North Slope, Alaska (preliminary). |
1990 |