There are 2 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 153668 | M. Clapham | Ouralsky mine, Kargala (coll. Malioutine 1929) Capitanian - Permian 4 - Russian Federation | Zalessky (1933) |
| 153669 | M. Clapham | Vilva River, near Tchoussovaia station (coll. Frederiks, Scheine 1930) Artinskian - Permian 2 - Russian Federation | Zalessky (1933) |