There are 2 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 40815 | D. Bottjer | USNM806f, Cerros de los Monos, El Antimonio, Sonora Wordian - Permian 4 - Mexico | Cooper et al. (1953) |
| 40816 | D. Bottjer | USNM806g, Cerros de los Monos, El Antimonio, Sonora Wordian - Permian 4 - Mexico | Cooper et al. (1953) |