There are 3 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 83005 | M. Clapham | Big Timber, Boulder Road, Sweet Grass County Capitanian - Permian 4 - Montana | Ciriacks (1963) |
| 105338 | M. Clapham | North Wadham Spring, Beaverhead County Wuchiapingian - Permian 4 - Montana | Ciriacks (1963) |
| 105345 | M. Clapham | Sappington Canyon, Gallatin County Capitanian - Permian 4 - Montana | Ciriacks (1963) |