A new terrestrial vertebrate from the Río Nío Formation (Eocene) of Northwestern Argentina

PJ Gaudioso, JC Fernicola, RI Vezzosi… - Journal of South …, 2025 - Elsevier
Abstract Northwestern Argentina exhibits numerous Paleogene fossiliferous localities.
However, in Tucuman Province, this period is represented by a few fossiliferous localities of …

New Palaeogene caviomorphs (Rodentia, Hystricognathi) from Santa Rosa, Peru: systematics, biochronology, biogeography and early evolutionary trends

M Arnal, AG Kramarz, MG Vucetich… - Papers in …, 2020 - Wiley Online Library
The origin and early evolution of South American rodents are ongoing subjects of debate.
The caviomorphs of the Peruvian localities of Santa Rosa and Contamana are the oldest …

A new south American paleogene land mammal fauna, Guabirotuba Formation (southern Brazil)

FA Sedor, ÉV Oliveira, DD Silva, LA Fernandes… - Journal of Mammalian …, 2017 - Springer
The Paleogene vertebrate-bearing sites of Brazil are restricted to few formations such as
Maria Farinha (Late Cretaceous-early Paleocene), Itaboraí (early Eocene), Entre-Córregos …

The last horned armadillos: phylogeny and decline of Peltephilidae (Xenarthra, Cingulata)

D Barasoain, DA Croft, AE Zurita… - Papers in …, 2023 - Wiley Online Library
Abstract Peltephilidae (Xenarthra, Cingulata) is an ancient lineage of medium–large‐sized
'armadillos' from South America, characterized by chisel‐shaped molariforms, a U‐shaped …

The Early Eocene climatic optimum at the lower section of the Lumbrera Formation (Ypresian, Salta province, Northwestern Argentina): origin and early diversification …

JC Fernicola, AN Zimicz, L Chornogubsky… - Journal of Mammalian …, 2021 - Springer
Recently, the basal beds of the lower section of the Lumbrera Formation have been referred
to the early Eocene (Ypresian) based on the identification of a succession of hyperthermal …

The Eocene armadillo Utaetus buccatus (Euphractinae) in the Guabirotuba Formation (Curitiba Basin) and carapace morphological implications

FA Sedor, TDF Klimeck, EV Dias, EV Oliveira… - Journal of South …, 2022 - Elsevier
Abstract The Guabirotuba Formation belongs to a small sedimentary basin located in the
southernmost portion of the Cenozoic continental rift system of southeastern Brazil. In this …

A new Eocene dasypodid with caniniforms (Mammalia, Xenarthra, Cingulata) from northwest Argentina

CMR Herrera, JE Powell, GI Esteban… - Journal of Mammalian …, 2017 - Springer
The aim of this work is to present a new genus and species of Dasypodidae from the
Lumbrera Formation (“lower Lumbrera”), early-middle Eocene of Salta Province, northwest …

Geometric morphometrics as a tool to identify Dasypodini osteoderms: Implications for the oldest records of Dasypus

JS Salgado-Ahumada, MD Ercoli, A Álvarez… - Journal of Mammalian …, 2023 - Springer
Abstract Cingulata (Mammalia, Xenarthra) is one of the most conspicuous clades in the
Cenozoic fossil record of South America, largely due to the high abundance of disarticulated …

A late Eocene frog assemblage from the Geste Formation, Puna of north-western Argentina

RO Gómez, GF Turazzini, DA García-López… - Historical …, 2024 - Taylor & Francis
Frogs (Anura) are major components of tetrapod communities in the Neotropics and,
according to divergence-time estimates, were already diverse in early Palaeogene times …

New assemblage of cingulates from the Quebrada de Los Colorados Formation (middle Eocene) at Los Cardones National Park (Salta Province, Argentina) and the …

JC Fernicola, AN Zimicz, L Chornogubsky… - Journal of South …, 2021 - Elsevier
In the Eocene deposits of Northwestern Argentina, the order Cingulata was recognized in
the sedimentary levels of the upper and lower sections of the Lumbrera (Salta Province) …