Estación Gamay (Neogene of Argentina)

Where: La Pampa, Argentina (37.4° S, 64.4° W: paleocoordinates 37.6° S, 62.1° W)

• coordinate stated in text

When: Huayquerian mammal zone, Cerro Azul Formation, Huayquerian (8.0 - 5.0 Ma)

• The remains from this locality were found in boreholes up to 50 m deep. Other taxa present are not known enough to allow their age to be adjusted. Therefore, the locality is assigned to the Huayquerian sensu lato (late Miocene–early Pliocene).

Environment/lithology: terrestrial; lithology not reported

• Levels with remains in this locality correspond to the Cerro Azul Formation (Linares et al., 1980), characterized by loess-type erosion forms. In general, these are levels of brown silts and sandy silts of primary eolian origin (loess deposits), which have been reworked by aqueous agents (loess-like deposits). Paleosol levels and pedogenic features, as well as carbonate accumulations, including nodules and rhizoconcretions, are common throughout the sequence (Folguera and Zárate, 2009).

Size class: macrofossils

Primary reference: R. Sostillo, M. C. Cardonatto, L. Kerber and C. I. Moltalvo. 2022. Taxonomic and ontogenetic diversity of Dinomyidae (Rodentia) from the late Miocene-early Pliocene of La Pampa province (Argentina) based on cranio-dental remains. Journal of South American Earth Sciences 114:103704 [J. Carrillo/K. Pino/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 230749: authorized by Juan Carrillo, entered by Kateryn Pino on 17.07.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Rodentia - Dinomyidae
Diaphoromys gamayensis n. sp.
Diaphoromys gamayensis n. sp. Kraglievich 1931 caviomorph
Holotype: MACN-Pv 6742