There are 2 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 96860 | M. Clapham | Soyana (Iva Gora, PIN collection 94) (coll. Edemskij 1934) Roadian - Permian 3 - Russian Federation | Schram (1980) |
| 117459 | M. Clapham | Ust-Yenisei borehole Changhsingian - Permian 4 - Russian Federation | Birshtein (1958) |