There are 2 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 5641 | J. Alroy | USGS "blue file" Loc. 13414 Serpukhovian - Carboniferous 3 - Montana | Easton (1962) |
| 6715 | A. Miller | Locality 5, horizon 2, Big Snowy Fm., Brownback Gulch, Madison Co., Montana Chesterian - Carboniferous 2-3 - Montana | Brewster (1984) |