Also known as Headwaters of the Río Chico

Where: Chubut, Argentina (45.6° S, 68.5° W: paleocoordinates 47.9° S, 57.4° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Lago Colhué Huapi Formation (Chubut Group), Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• Uppermost Lago Colhué Huapi Formation. Geological studies—particularly those of palynomorphs—support a late Maastrichtian age, probably close to the Cretaceous/Paleogene boundary, for the stratigraphic horizon in question (Vallati et al., 2016, 2020).

• bed-level stratigraphic resolution

Environment/lithology: fluvial; medium-grained, coarse, black sandstone

Size class: macrofossils

Collection methods: UNPSJB

Primary reference: L. M. Ibiricu, G. A. Casal, B. N. Alvarez, A. Sosa Tomas, M. C. Lamanna and P. Cruzado-Caballero. 2021. New hadrosaurid (Dinosauria: Ornithopoda) fossils from the uppermost Cretaceous of central Patagonia and the influence of paleoenvironment on South American hadrosaur distribution. Journal of South American Earth Sciences 110:103369 [P. Mannion/P. Mannion/F. Aspromonte]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 220171: authorized by Philip Mannion, entered by Philip Mannion on 10.05.2021, edited by Franco Aspromonte

Creative Commons license: CC BY (attribution)