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Caņadon del Hunco (Eocene of Argentina)

Also known as Laguna del Hunco

Where: Chubut, Argentina (42.3° S, 70.0° W: paleocoordinates 44.8° S, 60.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Laguna del Hunco Formation, Lutetian (48.6 - 40.4 Ma)

• "Early or Middle Eocene" or "Lutetian" based on radioisotopic dates of about 50 Ma and 43 Ma for under- and overlying units

•frogs are from at least two of three "plant-bearing levels" in the local section

• member-level stratigraphic resolution

Environment/lithology: lacustrine; lithified, fine-grained, tuffaceous, sandy shale

• "lacustrine"
• "fine-grained tuffaceous sediments... thinly bedded to laminated and reworked sandy pyroclastics and shales"

Size class: macrofossils

Preservation: adpression

Collection methods: Fundacion Miguel Lillo, Tucuman collection

Primary reference: A. M. Baez and L. Trueb. 1997. Redescription of the Paleogene Shelania pascuali from Patagonia and its bearing on the relationships of fossil and Recent pipoid frogs. Scientific Papers, Natural History Museum, University of Kansas 4:1-41 [J. Alroy/J. Alroy] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 92117: authorized by John Alroy, entered by John Alroy on 01.11.2009

Creative Commons license: CC BY (attribution)