| original |
Ordovician |
|
Bulgaria |
Kalvacheva,R.K. Plankton organism indicative of age. |
1982 |
| original |
Ordovician |
|
Bulgaria |
Kalvacheva,R.K. Plankton organism indicative of age. |
1982 |
| original |
Ordovician |
|
Bulgaria |
Kalvacheva,R.K. Plankton organism indicative of age. |
1982 |
| original |
Ordovician |
|
Bulgaria |
Kalvacheva,R.K. Plankton organism indicative of age. |
1982 |
| original |
Ordovician |
|
Bulgaria |
Kalvacheva,R.K. Plankton organism indicative of age. |
1982 |
| original |
Ordovician |
|
Bulgaria |
Kalvacheva,R.K. Plankton organism indicative of age. |
1982 |
| original |
Ordovician |
|
Bulgaria |
Kalvacheva,R.K. Plankton organism indicative of age. |
1982 |
| original |
Ordovician |
|
Bulgaria |
Kalvacheva,R.K. Plankton organism indicative of age. |
1982 |
| original |
Ordovician |
|
Bulgaria |
Kalvacheva,R.K. Plankton organism indicative of age. |
1982 |
| original |
Ordovician |
|
Bulgaria |
Kalvacheva,R.K. Plankton organism indicative of age. |
1982 |
| original |
Ordovician |
|
Bulgaria |
Kalvacheva,R.K. Plankton organism indicative of age. |
1982 |
| original |
Ordovician |
|
Bulgaria |
Kalvacheva,R.K. Plankton organism indicative of age. |
1982 |
| original |
Late Burdigalian |
|
USA(Gulf of Mexico) |
Lenoir,E.A. et al. Palynofacies of some Miocene Sands from the Gulf |
1988 |
| original |
Middle Miocene |
|
Canada(Arctic) |
Head,M.J. et al. Palynology and dinocyst stratigraphy of the Miocene ODP Leg 105, Hole 645E, Baffin Bay. |
1989 |
| original |
Early Maastrichtian |
|
Georgia |
Firth,J.V. Dinoflagellate assemblages and sea-level fluctuations in the Maestrichtian of Southwest Georgia |
1993 |
| original |
Ludlovian |
|
Spain |
Cramer,F.H. Microplankton from three Palaeozoic formations in the Province of Leon, northwest Spain. |
1964 |
| original |
Late Cretaceous |
|
Colorado |
Gies,T.F. Palynology of sediments boardering some Upper Cretaceous strand lines in Northwestern Colorado. |
1972 |