There are 4 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 6714 | A. Miller | Locality 5, horizon 1, Big Snowy Fm., Brownback Gulch, Madison Co. Montana Chesterian - Carboniferous 2-3 - Montana | Brewster (1984) |
| 6715 | A. Miller | Locality 5, horizon 2, Big Snowy Fm., Brownback Gulch, Madison Co., Montana Chesterian - Carboniferous 2-3 - Montana | Brewster (1984) |
| 6716 | A. Miller | Locality 5, horizon 3, Amsden Fm., Brownback Gulch, Madison Co., Montana Morrowan - Carboniferous 4 - Montana | Brewster (1984) |
| 6717 | A. Miller | Locality 5, horizon 4, Amsden Fm., Brownback Gulch, Madison Co., Montana Morrowan - Carboniferous 4 - Montana | Brewster (1984) |