Also known as LH4

Where: Chubut, Argentina (42.5° S, 70.0° W: paleocoordinates 45.0° S, 60.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Huitrera Formation, Ypresian (56.0 - 47.8 Ma)

• See P. Wilf et al. 2003, Science suppl., for detailed lithostratigraphy, paleomagnetic stratigraphy, and first Ar-Ar ages. See P. Wilf et al. 2012 (American Journal of Botany) for the revised Ar-Ar age given above.

• bed-level stratigraphic resolution

Environment/lithology: crater lake; lithified, fine-grained, tuffaceous, gray, silty, sandy siliciclastic sediments

Size classes: macrofossils, mesofossils, microfossils

Preservation: adpression, original silica, original carbon, replaced with silica

Collected by P. Wilf, N.R. Cuneo, K.R. Johnson, P. Puerta, M. A. Gandolfo in 1999, 2002, 2004; reposited in the MEF

Collection methods: bulk, quarrying, mechanical,

Primary reference: P. Wilf, K. R. Johnson, N. R. Cúneo, M. E. Smith, B. S. Singer and M. A. Gandolfo. 2005. Eocene Plant Diversity at Laguna del Hunco and Río Pichileufú, Patagonia, Argentina. The American Naturalist 165(6):634-650 [P. Wilf/M. Donovan]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 133045: authorized by Peter Wilf, entered by Mike Donovan on 01.09.2012, edited by Elena Stiles and Franco Aspromonte

Creative Commons license: CC BY (attribution)