Where: Chubut, Argentina (39.8° S, 70.2° W: paleocoordinates 42.3° S, 60.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Casamayoran (56.0 - 48.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; lithified, green claystone and white tuff

Size class: macrofossils

Collected by G. G. Simpson; reposited in the AMNH

Primary reference: B. Schaeffer. 1949. Anurans from the early Tertiary of Patagonia. Bulletin of the American Museum of Natural History 93(2):44-68 [J. Alroy/J. Wertheim/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49848: authorized by John Alroy, entered by Jill Wertheim on 28.04.2005

Creative Commons license: CC BY (attribution)