Advances in the Understanding of Neogene Mammalian Fauna in the Pampean Region (Central Argentina) Through Revising “Biozone” Hypotheses Based on New Dates and Biochronological Analyses

On the validity of the Macrochorobates scalabrinii Biozone (early Huayquerian Stage/Age, Late Miocene). Multi-proxy analysis of the enigmatic Arenas Blancas site (Buenos Aires Province, Argentina)

(2023) Rodrigo L. Tomassini et al.   Andean Geology

The oldest Andean synorogenic fossiliferous deposits of the Miocene Cerro Azul Formation, central Argentina

(2023) Claudia I. Montalvo et al.   JOURNAL OF SOUTH AMERICAN EARTH SCIENCES

Taxonomic and ontogenetic diversity of Dinomyidae (Rodentia) from the late Miocene-early Pliocene of La Pampa province (Argentina) based on cranio-dental remains

(2022) Renata Sostillo et al.   JOURNAL OF SOUTH AMERICAN EARTH SCIENCES

Youngest Interatheriinae (Mammalia, Notoungulata) from lower Pliocene Tunuyán Formation (Mendoza, Argentina)

(2022) Bárbara Vera et al.   JOURNAL OF VERTEBRATE PALEONTOLOGY

Recognition of a new nothrotheriid genus (Mammalia, Folivora) from the early late Miocene of Achiri (Bolivia) and the taxonomic status of the genus Xyophorus

(2022) Timothy J. Gaudin et al.   HISTORICAL BIOLOGY

A LATE MIOCENE MAMMAL ASSEMBLAGE REVEALS A COMPLEX TAPHONOMIC HISTORY IN FLUVIAL DEPOSITS OF CENTRAL ARGENTINA

(2022) Claudia I. Montalvo et al.   HISTORICAL BIOLOGY

New cranio-dental remains of Nothrotheriinae (Mammalia, Xenarthra, Folivora) from the Late Miocene of Central Argentina

(2022) Ángel R. Miño-Boilini et al.   HISTORICAL BIOLOGY

New radiometric 40Ar–39Ar dates and faunistic analyses refine evolutionary dynamics of Neogene vertebrate assemblages in southern South America

(2021) Francisco J. Prevosti et al.   Scientific Reports

Evolutionary pattern of Metacaremys gen. nov. (Rodentia, Octodontidae) and its biochronological implications for the late Miocene and early Pliocene of southern South America

(2021) Pedro Piñero et al.   Papers in Palaeontology

The Great American Biotic Interchange revisited: a new perspective from the stable isotope record of Argentine Pampas fossil mammals

(2020) Laura Domingo et al.   Scientific Reports

Nuevos registros de Lagostomus Brookes, 1828 (Rodentia, Chinchillidae) en el Mioceno tardío de Argentina y su importancia bioestratigráfica

(2020) Luciano Luis Rasia et al.   Andean Geology

Biostratigraphic significance of the presence of Protypotherium cf. P. antiquum Ameghino 1885 (Interatheriidae, Notoungulata) in the late Miocene of Northwestern Argentina

(2020) Matías A. Armella et al.   JOURNAL OF SOUTH AMERICAN EARTH SCIENCES

New remains of glyptodontidae (mammalia, xenarthra) from the Salicas Formation (late miocene, messinian), La Rioja province, Argentina

(2020) Diego Brandoni et al.   JOURNAL OF SOUTH AMERICAN EARTH SCIENCES

A new record of Megatherium (Folivora, Megatheriidae) in the late Pliocene of the Pampean region (Argentina)

(2020) Nicolás R. Chimento et al.   JOURNAL OF SOUTH AMERICAN EARTH SCIENCES

A chasicoan (late miocene) vertebrate assemblage from cerro azul formation, central Argentina. Geomorphological and biochronological considerations

(2019) C.I. Montalvo et al.   JOURNAL OF SOUTH AMERICAN EARTH SCIENCES

Fossil horses from the Late Pleistocene of Tapalqué Creek (Buenos Aires Province, Argentina)

(2019) José L. Prado et al.   NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN

Updated knowledge on the Notoungulata (Mammalia) from the late Miocene Cerro Azul Formation, La Pampa Province, Argentina

(2019) Renata Sostillo et al.   HISTORICAL BIOLOGY

Systematic review of Neocavia from the Neogene of Argentina: Phylogenetic and evolutionary implications

(2018) María Madozzo-Jaén et al.   ACTA PALAEONTOLOGICA POLONICA

More than 40 remains of Tremacyllus Ameghino 1891 (Notoungulata, Hegetotheriidae, Pachyrukhinae) from La Pampa Province (Argentina) are analyzed. They were recovered from different outcrops of the late Miocene Cerro Azul Formation at Laguna Chillhué, Quehué, Telén, Salinas Grandes de Hidalgo, Estancia Ré, Bajo Giuliani, Barrancas Coloradas and Caleufú. During the late Miocene, pachyrukhines are represented by two genera, Tremacyllus and Paedotherium. The present sample of Tremacyllus allows dental morphological variation to be evaluated, especially in lower and upper premolars. This study shows high variability in the diagnostic characters of two purported species, T. impressus (Pliocene-Pleistocene of the Pampean Region) and T. incipiens (late Miocene of Catamarca). We interpret these differences to actually correspond to intraspecific variation and, consequently, propose their synonymy. T. impressus has priority over T. incipiens, and an emended diagnosis is provided. This nomenclatural action implies, in turn, the extension of the biochron of Tremacyllus impressus from the late Miocene to the Pleistocene. T. impressus differs from Paedotherium in its smaller size, the presence of post-incisive impressions that extend beyond the level of P2 (reaching the anterior margin of P3), M3 shorter or equal to M2, relatively shorter mandibular symphysis, and lower premolars not molariform and more imbricated. Within the studied sample, we identify several juvenile specimens that confirm the dental eruption pattern previously proposed for Tremacyllus based on fewer remains.

(2018) Renata Sostillo et al.   AMEGHINIANA

Systematic and phylogeny of Prodolichotis prisca (Caviidae, Dolichotinae) from the Northwest of Argentina (late Miocene–early Pliocene): Advances in the knowledge of the evolutionary history of maras

(2018) María Carolina Madozzo-Jaén   COMPTES RENDUS PALEVOL

The oldest sigmodontine rodent revisited and the age of the first South American cricetids

(2018) Franck Barbière et al.   JOURNAL OF PALEONTOLOGY

The Quequén Salado river basin: Geology and biochronostratigraphy of the Mio-Pliocene boundary in the southern Pampean plain, Argentina

(2017) E. Beilinson et al.   JOURNAL OF SOUTH AMERICAN EARTH SCIENCES

Diversity of hypsodont teeth in mammalian dentitions – construction and classification

(2016) Wighart von Koenigswald   PALAEONTOGRAPHICA ABTEILUNG A-PALAOZOOLOGIE-STRATIGRAPHIE

PyramiodontheriumRovereto (Xenarthra, Tardigrada, Megatheriinae) from the Early Pliocene of San Fernando, Catamarca Province, Argentina

(2015) Ricardo A. Bonini et al.   AMEGHINIANA

A Late Miocene Argyrolagidae (Mammalia, Metatheria, Bonapartheriiformes) from Northwestern Argentina

(2015) Daniel A. García-López et al.   AMEGHINIANA

A new twist on a very old binary similarity coefficient

(2015) John Alroy   ECOLOGY

Evolution of the Neogene Andean foreland basins of the Southern Pampas and Northern Patagonia (34°–41°S), Argentina

(2015) Alicia Folguera et al.   JOURNAL OF SOUTH AMERICAN EARTH SCIENCES

A New Species ofReigechimys(Rodentia, Echimyidae) from the Late Miocene of Central Argentina and the Evolutionary Pattern of the Lineage

(2014) Renata Sostillo et al.   AMEGHINIANA

Detrital Zircon U-Pb Geochronology Applied to Tectonics

(2014) George Gehrels   Annual Review of Earth and Planetary Sciences

Biostratigraphy: Interpretations of Oppel's zones

(2013) G.H. Scott   EARTH-SCIENCE REVIEWS

Capybaras (Rodentia, Hydrochoeridae, Hydrochoerinae) and their bearing in the calibration of the late Miocene–Pliocene sequences of South America

(2013) Cecilia M. Deschamps et al.   JOURNAL OF SOUTH AMERICAN EARTH SCIENCES

Biostratigraphy and biochronology of the Monte Hermoso Formation (early Pliocene) at its type locality, Buenos Aires Province, Argentina

(2013) Rodrigo L. Tomassini et al.   JOURNAL OF SOUTH AMERICAN EARTH SCIENCES

Macrochorobates scalabrinii (Moreno & Mercerat) (Cingulata, Dasypodidae) en el Mioceno tardío de la Provincia de San Juan (Argentina). Implicancias biocronoestratigráficas y paleobiogeográficas

(2013) Victor H. Contreras et al.   REVISTA BRASILEIRA DE PALEONTOLOGIA

Dental evolution in Neophanomys (Rodentia, Octodontidae) from the late Miocene of central Argentina

(2011) Diego H. Verzi et al.   GEOBIOS

Correlation of late Cenozoic sequences of southeastern Buenos Aires province: Biostratigraphy and magnetostratigraphy

(2009) Esteban Soibelzon et al.   QUATERNARY INTERNATIONAL

Biostratigraphy and biochronology of the Late Miocene of central Argentina: Evidence from rodents and taphonomy

(2008) Diego H. Verzi et al.   GEOBIOS

The oldest South American Cricetidae (Rodentia) and Mustelidae (Carnivora): Late Miocene faunal turnover in central Argentina and the Great American Biotic Interchange

(2008) Diego H. Verzi et al.   PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY

Synchronizing Rock Clocks of Earth History

(2008) K. F. Kuiper et al.   SCIENCE

Vertebrate taphonomy in loess-palaeosol deposits: A case study from the late Miocene of central Argentina

(2007) Claudia I. Montalvo et al.   GEOBIOS