There are 3 matches

Collection Authorizer Collection name Reference
13779J. Alroy Barranca south of Lago Colhue-Huapi, Gran Barranca (coll. Ameghino, Williams, Herrera, Stein, Scarritt Expedition, Sternberg, Marshall, Gutierrez) Bartonian - Cenozoic 3 - Argentina Ameghino (1897)
61228J. Head Cañadón Vaca (Madtsoia bai holotype locality, Notostylops Beds) Middle Eocene - Argentina Simpson (1933)
61230J. Head Gaiman Madtsoia locality Eocene - Argentina Hoffstetter (1959)

Do another search