Where: Buenos Aires, Argentina (38.0° S, 58.0° W: paleocoordinates 38.0° S, 56.9° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Chapadmalal Formation, Chapadmalalan (4.0 - 3.0 Ma)

• Upper levels of Chapadmalal Formation (only IX-XI in this vicinity)

Environment/lithology: terrestrial

Size class: macrofossils

Primary reference: G. G. Simpson. 1972. Didelphidae from the Chapadmalal formation in the Museo Municipal de Ciencias Naturales of Mar del Plata. Mar del Plata: Museo Municipal de Ciencias Naturales 2(1):1-40 [J. Alroy/J. Wertheim/J. Wertheim] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 14178: authorized by John Alroy, entered by Jill Wertheim on 21.05.2002

Creative Commons license: CC BY (attribution)