| 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 |
Ludlovian |
Gedinnian |
Czechoslovakia(Morovia) |
Cambel,B. et al. Biostratigraphic evaluation of Metasediments in the male Karpathy Mts.Region |
1985 |
| original |
Stephanian B |
Stephanian C |
Czechoslovakia |
Planderova,E. et al. Biostratigraphic evaluation of Graphiteous Shales in the Zemplin Inselberg area (Eastern Slovakia). |
1981 |
| original |
Late Burdigalian |
|
USA(Gulf of Mexico) |
Lenoir,E.A. et al. Palynofacies of some Miocene Sands from the Gulf |
1988 |
| details |
Barremian |
|
England(Isle of Wight) |
Harding,I.C. et al. Dinocysts and the palaeoenvironmental interpretation of nonmarine sediments: An example from the Wealden of the Isle of Wight (Lower Cretaceous, Southern England). |
1995 |
| details |
Pliocene |
|
Caribbean(Bahamas) |
Westphal,H. et al. Differential diagenesis of rhythmic limestone alternations supported by palynological evidence. |
2000 |