24 km southwest of Norte de Cerro Bayo 2 (Cretaceous of Argentina)

Also known as North Cerro Bayo 2

Where: Chubut, Argentina (43.2° S, 67.7° W: paleocoordinates 45.4° S, 56.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• Middle facies association of the La Colonia Formation

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

• bed-level stratigraphic resolution

Environment/lithology: estuary or bay; mudstone

• Represents deposition in an estuarine environment or tidal flat, influenced by occasional high freshwater streamflows from the continent and tidal currents from the sea. This facies association was deposited under a seasonal climate with alternating periods of humidity and aridity.
• Composed mostly of laminated mudstones, pelitic fine sandstones, and banded siltstones and claystones.

Size class: macrofossils

Collected by Z. Gasparini in 2011

Collection methods: surface (in situ),

Primary reference: Z. Gasparini, J. Sterli, A. Parras, J. P. O'Gorman, L. Salgado, J. Varela, and D. Pol. 2015. Late Cretaceous reptilian biota of the La Colonia Formation, central Patagonia, Argentina: occurrences, preservation and paleoenvironments. Cretaceous Research 54:154-168 [P. Mannion/J. Tennant/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 224258: authorized by Matthew Carrano, entered by Matthew Carrano on 04.02.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudinata -
Patagoniaemys gasparinae Sterli and de la Fuente 2011 turtle
MPEF-PV 10551