Aguada Escondida (Miocene of Argentina)

Also known as Aguada La Escondida

Where: Chubut, Argentina (42.2° S, 70.2° W: paleocoordinates 42.7° S, 66.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Colloncuran mammal zone, Collon Cura Formation, Middle Miocene (16.0 - 11.6 Ma)

• In general terms, in the area of study the Collón Curá Formation (middle Miocene) overlies conformably and unconformably the La Pava (late lower Miocene) Formation and is unconformably overlaid by the Río Negro Formation (Miocene-Pliocene).

Environment/lithology: fluvial-lacustrine; sandstone

• This locality was recently studied by Martínez et al. (2014) indicating that the exposed sequence of about 45 meters consists of a succession of clear tonalities with predominantly brown and ochre colors. The turtle specimens described here come from a 3 meters stratum located in the mid part of the sequence. This stratum would correspond to a low energy paleoenvironment, apparently lacunar and correlated preliminarily with the Lower Section defined by Bilmes et al. (2014).

Size class: macrofossils

Collection methods: surface (in situ),

• LIEB-PV, Laboratorio de Investigaciones en Evolución y Biodiversidad, Facultad de Ciencias Naturales sede Esquel, Universidad Nacional de la Patagonia “San Juan Bosco”, Esquel, Chubut province, Argentina

Primary reference: C. Oriozabala, J. Sterli, and L. Gonzalez Ruiz. 2018. Morphology of the mid-sized tortoises (Testudines: Testudinidae) from the Middle Miocene of Northwestern Chubut. Ameghiniana 55(1):30-54 [E. Vlachos/E. Vlachos/E. Vlachos]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 186560: authorized by Evangelos Vlachos, entered by Evangelos Vlachos on 26.06.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Testudines - Pantestudinidae
Chelonoidis gringorum Simpson 1942 turtle