There are 4 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 192983 | B. Kröger | Berzini borehole, C III zone, 486.0 - 470.0 m Idavere - Ordovician 4 - Latvia | Polma et al. (1977) |
| 192984 | B. Kröger | Berzini borehole, D I zone, 462.7 - 459.0 m Johvi - Ordovician 5 - Latvia | Polma et al. (1977) |
| 207204 | B. Kröger | Ludza 15 borehole, Sartai Fm. Idavere - Ordovician 4 - Latvia | Paskevicius (1997) |
| 207207 | B. Kröger | Ludza 15 borehole, Sventupys Fm., 626 - 636 m Idavere - Ordovician 4 - Latvia | Paskevicius (1997) |