There are 2 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 40823 | D. Bottjer | USNM806i, Cerros de los Monos, El Antimonio, Sonora Wordian - Permian 4 - Mexico - old id | Cooper et al. (1953) |
| 117974 | M. Clapham | Otlamalacatla, Hidalgo Asselian - Permian 1 - Mexico | Sour-Tovar et al. (2005) |