Raúl Ignacio Vezzosi

Raúl Ignacio Vezzosi
National Scientific and Technical Research Council | conicet · CONICET-UADER

Dr. in Natural Sciences. Professor of Paleontology and Earth Science (FCyT-UADER) - Researcher CONICET (Argentina) and PEDECIBA (UDELAR - Uruguay).
Argentinian Researcher and University professor of Paleontology with knowledge in Quaternary and Neogene Vertebrate.

About

39
Publications
8,832
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
120
Citations
Introduction
I work at the Vertebrate Paleontology Lab in CONICET, professor of Paleontology in FCyT-UADER. I research in Paleontology, Paleobiology and Evolutionary Biology. Current projects: -Systematic and Phylogeny of American fossil and living deers -Quaternary continental vertebrates from austral Chaco, Northern and Southern Pampa -Assessment of the geological risk in Santa Fe and Cordoba provinces (Argentina), applied to the problem of floods -Geo/Paleontology from Paleo-Neogeno of NOA

Publications

Publications (39)
Article
Full-text available
A skull of a fossil adult euphractine armadillo collected near San Ramón (Canelones department) is described. The specimen comes from the Lujanian deposits of the Dolores Formation (Upper Pleistocene-Greenlandian) in Uruguay. The skull is very similar to Chaetophractus villosus and Euphractus sexcinctus but is smaller and differs from the latter in...
Article
Full-text available
A new material of a Quaternary waterfowl is described here. The implications of this finding, in the context of the dispersal of Anatidae in the past, are discussed. The specimen consists in a partial humerus coming from the Upper Pleistocene of austral Chaco from Santiago del Estero Province, Argentina. The specimen here described belongs to the t...
Article
The tribe Myocastorini (Caviomorpha, Echimyidae) currently comprises living species inhabiting Central America from Honduras and extending throughout South America to Patagonia, in a wide variety of environments. This clade is well represented in the late Miocene-Pleistocene fossil beds of central and northern Argentina. Its diversification at high...
Poster
Full-text available
Los afloramientos paleógenos-neógenos del norte de la provincia de Tucumán forman parte de tres provincias geológicas: las Sierras Pampeanas (centro-oeste), Sistema de Santa Bárbara (noreste) y Llanura Chaqueña (este). Esta sucesión cenozoica está compuesta por cuatro unidades litoestratigráficas: Formación Río Loro (Paleoceno), Fm. Río Nío (Eoceno...
Article
Full-text available
ON THE CRANIAL ANATOMY OF MORENELAPHUS (CARETTE 1922) (MAMMALIA, CERVIDAE) AND ITS RELATIVES: STUDY OF THE ANATOMY OF THE BRASICRANIUM. Among South American fossil deer, Morenelaphus is the most conspicuous genus from the Pleistocene beds of Argentina. However, its fossil record in South America is almost known only by antlers, the anatomy of the...
Article
Full-text available
The first unequivocal records of teratornithid birds from the Pleistocene of South America are here described, adding a new member, and the largest, to this highly diversified guild of large carnivorous flying birds that lived during these times in the Americas. The new specimens come from four fossiliferous localities of Central Argentina that ran...
Article
The tragic fire at the National Museum (Brazil) in September 2018 caused invaluable losses to South American natural and cultural heritage. However, previous visits to the paleontological collection generated photographic and descriptive records of mammalian fossil specimens from the Pleistocene of Brazil. Thus, it was possible to redescribe and re...
Article
Full-text available
Here it is reviewed the cotype of the ground-sloth Nothrophus cararanensis Bordas, 1942, and proposed that it should be taxonomically relocated to the extinct deer Morenelaphus. The specimen in question is represented by a fragmentary braincase, that shares several features with Cervidae and, more detailed with Morenelaphus. Besides antler morpholo...
Article
The fossil record of South American cathartids, with few exceptions, is largely restricted to Late Pleistocene and Holocene sites. This contribution provides for the first time fossil records of cathartids from Uruguay. The specimens reported here include an; almost complete fibula, an incomplete furcula, and the distal end of a tibiotarsus. The; f...
Article
Full-text available
The Chaco Region is the third biogeographic and morpho-structural territory of South America after the Amazon and Cerrado savannahs. This region is one of the few areas in the world where the transition from the tropics to temperate zones does not consist of a desert but of semi-arid woodlands and savannahs. The modern biodiversity patterns of the...
Article
Full-text available
The Chaco Region is the third biogeographic and morpho-structural territory of South America after the Amazon and Cerrado savannahs. This Region is one of the few areas in the world where the transition from the tropics to temperate zones does not consist of a desert but of semi-arid woodlands and savannahs. The modern biodiversity patterns of the...
Preprint
Full-text available
Se presenta aquí el estado de avance de un volumen a titular "Geología y Paleontología del Cuaternario de la Provincia de Santa Fe". El proyecto está destinado a ofrecer a los naturalists de Santa Fe y otros interesados algunos materiales de difícil acceso, que se han publicado en congresos y revistas internacionales y extranjeras, tesis doctorales...
Chapter
Full-text available
THE QUATERNARY FOSSIL RECORD FROM SANTA FE (ARGENTINA): A FIRST UPDATE. The study of fossil vertebrate and its stratigraphy from the Pleistocene of Santa Fe has recently experienced an important advance. Most of these records are mammals and less frequently fishs, birds and reptiles.The vertebrate assemblages come from three geomorphological region...
Poster
Full-text available
Antifer es el cérvido más grande para el Cuaternario de América del Sur, conocido hasta la fecha solo por sus astas. Presentamos aquí el primer molde endocraneano de este taxón, en base a tomografías computadas del neurocráneo de un individuo adulto (MRS 202) con volteo completo. El mismo proviene del Pleistoceno Tardío (edades OSL 84- 95 ka AP) de...
Article
Full-text available
In this contribution the record of a Nothrotheriinae (Xenarthra, Tardigrada) ground sloth is reported from the Late Pleistocene of the Northern Pampa of Santa Fe Province, Argentina. The stratigraphic unit where the fossil was collected corresponds to fluvial-palustrine sediments of the Timbúes Formation, outcropping along the Carcarañá River valle...
Poster
Full-text available
Los reportes sobre hallazgos de paleofauna cuaternaria, como así también trabajos con enfoques multidisciplinarios en la región centro-norte de Argentina, son escasos. Teniendo en cuenta esa problemática hemos iniciado un estudio geológico y paleontológico de los sedimentos aflorantes en el Río Dulce (Departamento Río Hondo, provincia de Santiago d...
Article
The South American porcupines (Erethizontidae) are included in two genera: Chaetomys and Coendou. The latter is a very speciose taxon, with about 13 living species. During at least the late Pliocene–early Pleistocene, erethizontids immigrated to Central and North America during the Great American Biotic Interchange. Although some Pleistocene fossil...
Article
Full-text available
The record of an opossum is reported here coming from a Middle–Late Pleistocene fluvial sedimentary sequence outcropping in the austral Chaco geomorphological region, Santa Fe province. Despite this family has different living forms widely distributed in South American plains, with great tolerance to diverse habitats conditions, the Pleistocene occ...
Article
Full-text available
A new species of rheid, Opisthodactylus kirchneri, sp. nov., is erected on the basis of associated elements of both hind limbs from the late Miocene in northwestern Argentina. The new species extends the biochron of Opisthodactylus from early Miocene to late Miocene and its distribution from Patagonia to northwest Argentina. Cladistic analysis reco...
Article
Full-text available
Vallone, E.R., Vezzosi, R.I. & Cione, A.L. February 2017. First fossil fish (Teleostei, Siluriformes) from the Late Pleistocene of Santa Fe Province, Argentina. Alcheringa 00, 000–000. ISSN 0311-5518. The record of fossil fish from the Pleistocene of Argentina is poor. Here we describe the first ichthyofauna from Late Pleistocene riverbank beds in...
Article
Full-text available
A new record of a middle-sized terror bird from northwestern Argentina is reported based on associated and fragmentary limb elements of a single specimen. The latter belongs to old collections of the MUFYCA (Ex-Instituto de Fisiografía y Geología) of Rosario city, Argentina, and remained unstudied since its finding during the 1940s. The specimen co...
Thesis
Full-text available
Abstract The Pleistocene mammal fauna is widely represented at different deposits from South America (Argentina, Bolivia, Brazil, Chile, Paraguay, Perú, Uruguay and Venezuela), including a lot of vertebrate species which are recorded since 2.58 M.Y. to 10.000 Y.B.P. Although the number of taxa reported from Pleistocene times is great, most finding...
Article
Full-text available
The Neotropical otter (Lontra longicaudis, Mustelidae, Carnivora) is defined as a generalist carnivore. Although it is a fish-crustacean feeder, rodents are commonly found in its diet, though less frequently. In order to learn about the effects that this predator produces on its prey’s bones, we conducted taphonomic analysis of bone remains from sc...
Article
Full-text available
We studied the Neotropical otter (Lontra -longicaudis) seasonal diet variations in the middle Parana River valley, in central-northern Argentina, at the southern limit of its global range. We recorded 745 prey items in 320 scats collected over the course of 1 year in a tributary stream of the Parana River. Fish, crustaceans, mammals, and insects we...
Article
Full-text available
SIZE AND BODY MASS IN PROCARIAMA SIMPLEX ROVERETO, 1914 (AVES: PHORUSRHACIDAE: PSILOPTERINAE). Body-mass of fossil birds can be estimated using comparisons with extant birds, taking into account that the measures of hindlimbs are indicators of body weight. Hindlimb bones (femur, tibiotarsus, and tarsometatarsus) would represent a direct relationshi...
Article
Full-text available
Vezzosi, R.I., iFirst article. First record of Procariama simplex Rovereto, 1914 (Phorusrhacidae, Psilopterinae) in the Cerro Azul Formation (upper Miocene) of La Pampa Province; remarks on its anatomy, palaeogeography and chronological range. Alcheringa, 1–13. ISSN 0311-5518.New records of Procariama simplex in central and northwestern Argentina a...
Article
Full-text available
The oldest fossil record of Tayassuidae in South America dates of the middle Pliocene (Buenos Aires. Argentina). Since the Pleistocene a significant increase in taxonomic diversity occurred, recorded by numerous discoveries in Argentina, Brazil. Uruguay and Bolivia. Nowadays. at least three extant species are recognized: Tayassu tajacu (Linnaeus),...
Article
Full-text available
El registro paleontológico más antiguo de Tayassuidae en América del Sur se remonta al Plioceno medio (Buenos Aires, Argentina). A partir del Pleistoceno se produce un notable incremento en la diversidad taxonómica, registrándose numerosos hallazgos en Argentina, Brasil, Uruguay y Bolivia. Actualmente, se reconocen al menos tres especies vivientes:...
Article
Full-text available
The oldest fossil record of Tayassuidae in South America dates of the middle Pliocene (Buenos Aires, Argentina). Since the Pleistocene a significant increase in taxonomic diversity occurred, recorded by numerous discoveries in Argentina, Brazil, Uruguay and Bolivia. Nowadays, at least three extant species are recognized: Tayassu tajacu (Linnaeus),...

Network

Cited By

Projects

Projects (5)
Project
Nuestro proyecto está orientado a cubrir la falta de información paleontológica y se enfoca en analizar, de manera interdisciplinaria, la paleoflora y paleofauna del Paleógeno y Neógeno de la provincia de Tucumán. Los nuevos registros paleontológicos serán útiles a la hora de realizar nuevas indagaciones biológicas y geológicas, como así también paleobiogeográficas, bioestratigráficas, taxonómicas, filogenéticas y evolutivas. En suma, se investigará desde una perspectiva integrada la evolución biológica y geológica del Paleógeno y Neógeno de la provincia de Tucumán. Dicho enfoque permitirá elaborar comparaciones entre paleocomunidades mejor representadas de otras áreas dentro de la provincia, como así también de otras regiones de nuestro país.
Project
Collaboration studies on the anatomy of the cranial endocast, inner ear, nasal cavity, craniofacial innervation, and vasculature of certain extinct mammalian groups: Cervidae, Rodentia, Cingulata, Notoungulata
Project
The main objective of the proposal is to update the knowledge of American cervids (Mammalia, Cervidae), through systematic and phylogenetic studies in anatomical cranio-appendicular morphology, its functionality, evolutionary patterns and comparisons with living horticultural and fossil lineages of the American continent , within a precise stratigraphic context