Also known as Somún Curá plateau

Where: Chubut, Argentina (42.8° S, 68.4° W: paleocoordinates 45.1° S, 57.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: La Colonia Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• upper facies (sensu Pascual et al., 2000) of the La Colonia Formation

• bed-level stratigraphic resolution

Environment/lithology: marine; muddy sandstone

Size classes: macrofossils, mesofossils, microfossils

• more than 350 gastroliths

Collected by J. O'Gorman, A. Carignano, P. Puerta in 2021; reposited in the MEF

Collection methods: bulk, surface (in situ), peroxide,

• One sample of 0.50 kg of the surrounding rock was collected for nanno- and microfossil analysis. Repository numbers for nano- and microfossils are MPEF PI-7209 to 7234. To recover the calcareous microfossils, the sample was submerged for 24 hours in water and hydrogen peroxide (10%), washed through a 63 mm (Tyler 230) sieve with tap water and finally, oven dried (30o C).

Primary reference: J. P. O'Gorman, A. P. Carignano, L. Calvo-Marcilese and J. P. Pérez Panera. 2023. A new elasmosaurid (Sauropterygia, Plesiosauria) from the upper levels of the La Colonia Formation (upper Maastrichtian), Chubut Province, Argentina. Cretaceous Research 105674 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 231295: authorized by Philip Mannion, entered by Philip Mannion on 11.08.2023, edited by Evangelos Vlachos

Creative Commons license: CC BY (attribution)