Where: Buenos Aires, Argentina (38.3° S, 61.8° W: paleocoordinates 38.4° S, 59.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Saldungaray Formation, Huayquerian (8.0 - 5.0 Ma)

• a Montehermosan SALMA age is proposed

•

•The Cerro Azul formation was assigned exclusively to the Huayquerian (Late Miocene; e.g., Montalvo and Casadío, 1988 and literature therein; Albino and Montalvo, 2006), whereas the Saldungaray formation was considered Montehermosan or even younger (Pliocene; e.g., Furque, 1967, González, 1984, Marshall et al., 1983, Verzi and Deschamps, 1996). However, recent biochronological data suggest a Chasicoan-Huayquerian age for the Cerro Azul Formation (Late Miocene; Verzi, 1999, Verzi et al., 2003, Verzi et al., 2004b, Montalvo et al., 2005), and a Huayquerian age for the localities here studied of the Saldungaray Formation (Verzi et al., 2004b, Deschamps, 2005).

Environment/lithology: terrestrial; unlithified siltstone and sandstone

Size class: macrofossils

Collection methods: bulk, quarrying, surface (float), surface (in situ),

• Cátedra de Geología Histórica from the Universidad Nacional del Sur, Bahía Blanca

Primary reference: C. M. Deschamps. 2005. Late Cenozoic mammal bio-chronostratigraphy in southwestern Buenos Aires Province, Argentina. Ameghiniana 42(4):733-750 [D. Croft/D. Croft]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 61306: authorized by Darin Croft, entered by Darin Croft on 04.06.2006

Creative Commons license: CC BY (attribution)