Gateway to the Paleobiology Database
Laguna Chillhué (Miocene of Argentina)

Also known as Zone of Chasichimys scagliai

Where: La Pampa, Argentina (37.3° S, 64.2° W: paleocoordinates 37.5° S, 61.9° W)

• coordinate stated in text

When: Chasicoan mammal zone, Cerro Azul Formation, Late/Upper Miocene (11.6 - 5.3 Ma)

• Age: Late Chasicoan or Early Huayquerian? (Late Miocene)

•The stratotype is recognized in the lower levels of the Cerro Azul Formation in this locality.

Environment/lithology: fluvial-lacustrine; massive, red, sandy siltstone

• The Cerro Azul formation is composed of massive brown reddish sandy silts, with loessic erosion. A detailed description of the geology and stratigraphy of this formation can be seen in Linares et al. (1980) and Goin et al. (2000).

Size classes: macrofossils, mesofossils

Primary reference: D. H. Verzi, C. I. Montalvo, and C. M. Deschamps. 2008. Biostratigraphy and biochronology of the Late Miocene of central Argentina: Evidence from rodents and taphonomy. Geobios 41:145-155 [C. Jaramillo/M. Vallejo] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 152065: authorized by Carlos Jaramillo, entered by Maria Vallejo on 05.11.2013

Creative Commons license: CC BY (attribution)