There are 2 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 117974 | M. Clapham | Otlamalacatla, Hidalgo Asselian - Permian 1 - Mexico | Sour-Tovar et al. (2005) |
| 232711 | M. Clapham | Los Arcos, Olinalá, Unit 4 Guadalupian - Permian 3-4 - Mexico | González-Arreola et al. (1994) |