| details |
Llanvirnian |
Ashgillian |
Sweden(Gotland) |
Eiserhardt,K.H. The Acritarchs of the –jlemyrflintes. |
1992 |
| details |
Llanvirnian |
Llandeilian |
USSR(Kaliningrad) |
Pa?keviciene,L. Middle Ordovician acritarchs from Lithuania and Kaliningrad District |
1993 |
| details |
Llanvirnian |
Llandeilian |
USSR(Lithuanian SSR) |
Pa?keviciene,L. Middle Ordovician acritarchs from Lithuania and Kaliningrad District |
1993 |
| details |
Late Ordovician |
|
USSR(Lithuanian SSR) |
Pa?keviciene,L. Acritarchs from the Upper Ordovician of East Lithuania |
1993 |
| details |
Nd |
|
Nd |
Molyneux,S.G. et al. Paleozoic phytoplankton. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |