There are 5 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 96746 | M. Clapham | Delyandzha River, western Verkhoyan Asselian/Sakmarian - Permian 1-2 - Russian Federation | Kashirtsev (1959) |
| 102395 | M. Clapham | Pervaya Savina River, Collection 15049-1, Novaya Zemlya Roadian - Permian 3 - Russian Federation | Bogoslovskaya et al. (1982) |
| 119373 | M. Clapham | Zapadnaya River, Outcrop 85, Taimyr Lake (coll. Ustritsky 1960) Wordian - Permian 4 - Russian Federation | Ustritsky and Chernyak (1963) |
| 128934 | M. Clapham | Tastuba, Bashkirian ASSR Sakmarian - Permian 2 - Russian Federation | Erlanger (1981) |
| 225521 | M. Clapham | P-1903, Pilnikov stream (coll. 2000) Kungurian - Permian 2 - Russian Federation | Zakharov et al. (1999) |