There are 4 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 17133 | J. Alroy | Bear Creek (Lower Nodular Zone) Orellan - Cenozoic 4 - South Dakota | Sinclair (1924) |
| 17142 | J. Alroy | Middle Oreodon Beds (1892 AMNH Collection) Orellan - Cenozoic 4 - South Dakota | Osborn and Wortman (1894) |
| 17153 | J. Alroy | Oreodon Layer (1892 AMNH Collection) Orellan - Cenozoic 4 - South Dakota | Osborn and Wortman (1894) |
| 17295 | J. Alroy | Upper Nodular Zone (1892 AMNH Collection) Orellan - Cenozoic 4 - South Dakota | Osborn and Wortman (1894) |