Where: Chubut, Argentina (43.0° S, 67.6° W: paleocoordinates 45.3° S, 56.0° W)

• coordinate based on unpublished field data

• outcrop-level geographic resolution

When: Middle Member (La Colonia Formation), Maastrichtian (72.1 - 66.0 Ma)

• La Colonia Fm = Maastrichtian (Clyde et al. 2021)

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; mudstone

Size class: macrofossils

Reposited in the MEF

Primary reference: C. Oriozabala, J. Sterli, and M. S. Fuente. 2020. New species of the long-necked chelid Yaminuechelys from the Upper Cretaceous (Campanian–Maastrichtian) of Chubut, Argentina. Cretaceous Research 106:104197:1-11 [P. Mannion/P. Mannion/P. Mannion]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 206181: authorized by Evangelos Vlachos, entered by Evangelos Vlachos on 01.11.2019

Creative Commons license: CC BY (attribution)