There are 2 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 202319 | M. Uhen | IHN 1005 - Veinte de Noviembre [San Juan Fm] Middle Eocene - Cenozoic 2-3 - Mexico | Vega et al. (2001) |
| 228574 | J. Wolfe | El Veinte Early Eocene - Cenozoic 2 - Mexico | Vega et al. (2008) |