La Colonia (LC 68/23 and 69/23) (Cretaceous of Argentina)

Where: Chubut, Argentina (43.0° S, 67.5° W: paleocoordinates 45.2° S, 55.9° W)

• coordinate based on unpublished field data

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

Environment/lithology: terrestrial; mudstone and siltstone

Size class: macrofossils

• Turtle plates and a neural arch of a Hadrosauridae

Collected by Csaba Hefler in 2/16/2023; reposited in the MEF

Collection methods: surface (in situ),

• The turtle plates were collected (LC 68/23), but the neural arch of a possibly Hadrosauridae was not collected due it´s preservation (LC 69/23)

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 231411: authorized by Evangelos Vlachos, entered by Franco Aspromonte on 18.08.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Dinosauria -
Dinosauria indet.
Dinosauria indet. Owen 1842 dinosaur
Bones fragments
 Ornithischia - Hadrosauridae
Hadrosauridae indet.
Hadrosauridae indet. Cope 1869 hadrosaurid
Neural arch not collected
 Testudines - Chelidae
Chelidae indet., cf. Yaminuechelys indet.
Chelidae indet. Gray 1825 sideneck turtle
Plates and fragmented bones
cf. Yaminuechelys indet. de la Fuente et al. 2001 sideneck turtle
Plates
 Testudinata -
Meiolaniformes indet.
Meiolaniformes indet. Sterli and de la Fuente 2013 turtle
Plates