There are 6 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 17472 | J. Alroy | Big Muddy Creek (= Big Muddy River; Castle Butte; Spanish Diggings; Spanish Mines) Arikareean - Cenozoic 4-5 - Wyoming | Wahlert (1983) |
| 17524 | J. Alroy | Horse Creek (Wyoming) Arikareean - Cenozoic 4-5 - Wyoming | Xu (1996) |
| 17532 | J. Alroy | Little Muddy Creek (Niobrara County) Arikareean - Cenozoic 4-5 - Wyoming | Xu (1996) |
| 17703 | J. Alroy | Tremain Arikareean - Cenozoic 4-5 - Wyoming | Wahlert (1983) |
| 17727 | J. Alroy | Willow Creek Arikareean - Cenozoic 4-5 - Wyoming | Wahlert (1983) |
| 17781 | J. Alroy | First Breaks South of Harrison Harrisonian - Cenozoic 4-5 - Nebraska | Wahlert (1983) |