La Colonia (LC 229/23) (Cretaceous of Argentina)

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

• coordinate based on unpublished field data

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

Environment/lithology: terrestrial; siltstone and sandstone

Size class: macrofossils

• Plesiosaur stylopodium and turtle sacral vertebra

Collected by Mariano Caffa in 2/25/2023; reposited in the MEF

Collection methods: surface (in situ),

Primary reference: D. Pol, E. Vlachos, and F. Aspromonte. 2023. The end of the dinosaur era in Patagonia (NatGeo Project). [E. Vlachos/E. Vlachos/E. Vlachos]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 231658: authorized by Evangelos Vlachos, entered by Franco Aspromonte on 25.08.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Plesiosauria - Elasmosauridae
Elasmosauridae indet. Cope 1869 elasmosaur
Stylopodium and vertebrae
 Testudines - Chelidae
cf. Yaminuechelys indet. de la Fuente et al. 2001 sideneck turtle
Cervical vertebra