There are 4 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 192984 | B. Kröger | Berzini borehole, D I zone, 462.7 - 459.0 m Johvi - Ordovician 5 - Latvia | Polma et al. (1977) |
| 192985 | B. Kröger | Berzini borehole, D II zone, 459.0 - 457.3 m Keila - Ordovician 4 - Latvia | Polma et al. (1977) |
| 207201 | B. Kröger | Ludza 15 borehole, Krastai Fm, 650.0 - 666.5 m Uhaku - Ordovician 3-4 - Latvia | Paskevicius (1997) |
| 207277 | B. Kröger | Kronauce 57 borehole, Kronauce Fm., 1194.7 - 1200.4 m Kunda - Ordovician 2-3 - Latvia | Paskevicius and Laskovas (1983) |