There are 4 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 161162 | B. Kröger | Karula, Blidene Formation (= Karula 320 borehole) Keila - Ordovician 4 - Estonia | Hints (1975) |
| 192690 | B. Kröger | Otepää boring, Blidene Fm. Keila - Ordovician 4 - Estonia | Bruton (1968) |
| 192691 | B. Kröger | Estonia N 2323 borehole, Blidene Fm. Oandu - Ordovician 5 - Estonia | Bruton (1968) |
| 192698 | B. Kröger | Otepää boring, level 446.1 - 446.2 metres Keila/Oandu - Ordovician 4-5 - Estonia | Bruton (1968) |