- Author:
- Kalvacheva,R.K.
- Year:
- 1982
- Title:
- Plankton organism indicative of age.
- Foreign title:
- Planktonii organizmi Indikatori na vozrastta.
- Reference:
- Kalvacheva,R.K. (1982) Plankton organism indicative of age. [ Planktonii organizmi Indikatori na vozrastta. ] Nauka i Tekhniki, Bulgarian Telegraph Agency,18 Vol. 34 P. 6- 9
- Google Academy:
- try to search by title in english or foreign title
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Acritarch | Acritarch sp.1 sp. nov. | Bulgaria | Ordovician | |
| Acritarch | Acritarch sp.1 sp. nov. | Bulgaria | Ordovician | |
| Acritarch | Acritarch sp.1 sp. nov. | Bulgaria | Ordovician | |
| Acritarch | Acritarch sp.1 sp. nov. | Bulgaria | Ordovician | |
| Acritarch | Acritarch sp.1 sp. nov. | Bulgaria | Ordovician | |
| Acritarch | Acritarch sp.1 sp. nov. | Bulgaria | Ordovician | |
| Acritarch | Acritarch sp.1 sp. nov. | Bulgaria | Ordovician | |
| Acritarch | Acritarch sp.1 sp. nov. | Bulgaria | Ordovician | |
| Acritarch | Acritarch sp.1 sp. nov. | Bulgaria | Ordovician | |
| Acritarch | Acritarch sp.1 sp. nov. | Bulgaria | Ordovician | |
| Acritarch | Acritarch sp.1 sp. nov. | Bulgaria | Ordovician | |
| Acritarch | Acritarch sp.1 sp. nov. | Bulgaria | Ordovician |