- Author:
- Kheinsalu,K.;Viira,V.;Paalits,I.
- Year:
- 1990
- Title:
- Cambrian-Ordovician boundary beds in the Saka Ii section, Northern East Estonia.
- Foreign title:
- Pogranichnye Kembro-Ordovikskie otlozheniya Razreza Saka Ii v Severo-Vostochnoi Estonii
- Reference:
- Kheinsalu,K. et al. (1990) Cambrian-Ordovician boundary beds in the Saka Ii section, Northern East Estonia. [ Pogranichnye Kembro-Ordovikskie otlozheniya Razreza Saka Ii v Severo-Vostochnoi Estonii ] Eesti NSV Teaduste Akadeemia Toimetised,Geologia Vol. 40 # 1 P. 8- 15
- Google Academy:
- try to search by title in english or foreign title
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Stelliferidium | Stelliferidium alandicum | USSR(Estonian SSR) | Late Cambrian | |
| Timofeevia | Timofeevia sp | USSR(Estonian SSR) | Late Cambrian | |
| Trichosphaeridium | Trichosphaeridium annolovaense | USSR(Estonian SSR) | Late Cambrian | |
| Vulcanisphaera | Vulcanisphaera africana | USSR(Estonian SSR) | Late Cambrian |