Where: Buenos Aires, Argentina (38.0° S, 61.0° W: paleocoordinates 38.1° S, 59.6° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Monte Hermoso Formation, Montehermosan (6.8 - 4.0 Ma)

• Marine cliffs

•

•Quattrocchio et al. 2009: Monte Hermoso, the red earth cliffs near Punta Alta

• member-level stratigraphic resolution

Environment/lithology: terrestrial; siltstone

Size classes: macrofossils, mesofossils

Collected by Darwin and others in 1833 and others

• Type: left-lower premolar-molar

•Paratype: Fragment of left mandible with incisor alveolus

Primary reference: R. Pascual and P. Bondesio. 1961. Un nuevo Cardiatheriinae (Rodentia, Hydrochoeridae) de la Formacion Monte Hermoso (Pliocene Superior) de la Provincia de Buenos Aires. Algunas consideraciones sobre la evolucion morfolofica de los Molariformes de los Cardiatheriinae. Ameghiniana 2(6):93-109 [J. Alroy/J. Wertheim/M. Uhen] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 13503: authorized by John Alroy, entered by Jill Wertheim on 09.04.2002, edited by Mark Uhen, Juan Carrillo, Richard Hulbert, Jelle Zijlstra, Evangelos Vlachos and Miranta Kouvari

Creative Commons license: CC BY (attribution)