- Author:
- Martin,F.;Kjellstrжm,G.
- Year:
- 1973
- Title:
- Ultrastructural study of some Ordovician Acri Tarchs from Gotland
- Reference:
- Martin,F. et al. (1973) Ultrastructural study of some Ordovician Acri Tarchs from Gotland Neues Jahrbuch fмr Geologie und Pal¤ontologie. Monatshefte Vol. 1973 # 1 P. 44- 54
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Baltisphaeridium | Baltisphaeridium longispinosum | Sweden | Middle Ordovician | |
| Baltisphaeridium | Baltisphaeridium sp | Sweden | Middle Ordovician | |
| Orthosphaeridium | Orthosphaeridium trabeculatum | Sweden | Middle Ordovician | |
| Peteinosphaeridium | Peteinosphaeridium majorfurcatum | Sweden | Middle Ordovician |