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Jorge Gustavo Meso

Jorge Gustavo Meso
Instituto de Investigación en Paleobiología y Geología (UNRN-CONICET)

Ph.D. Postdoctoral Researcher at the National Council for Scientific and Technical Research

About

24
Publications
1,925
Reads
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23
Citations
Citations since 2017
24 Research Items
23 Citations
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Introduction
1-Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro. Argentina. 2-IIPG. UNRN. Consejo Nacional de Investigaciones científicas y Tecnológicas (CONICET). Av. Roca 1242, (R8332EXZ) General Roca, Río Negro, Argentina.

Publications

Publications (24)
Poster
Full-text available
The anatomy of the alvarezsauroid tail has been poorly described in the literature, although it shows a peculiar combination of characters that make it unique among theropods. To this respect, the most complete and informative alvarezsauroid taxa are Alvarezsaurus calvoi Bonaparte, Shuvuuia deserti Chiappe et al., Haplocheirus sollers Choiniere et...
Conference Paper
La Formación Allen (Campaniano medio-Maastrichtiano inferior; Cretácico Superior), con diversos afloramientos en el sector centro-oeste de Argentina, registra una interesante abundancia de restos fósiles de vertebrados. En particular, existen excelentes afloramientos en el Área Natural Protegida “Paso Córdoba”, 15 Km al suroeste de General Roca (Rí...
Conference Paper
The forelimb of Patagonian alvarezsaurids is known from a partially complete appendicular element of Patagonykus puertai (MCF-PVPH-37, Museo Cármen Fúnes) and from an I-2 ungueal phalanx (currently lost) of Alvarezsaurus calvoi (MUCPv-54, Museo Universidad del Comahue). New material of A. calvoi from the Fm. Bajo de la Carpa was recently collected...
Thesis
This Doctoral Thesis presents an exhaustive review of the Patagonian alvarezsaurids (Dinosauria, Theropoda). It includes a detailed osteological description of specimens of Patagonykus puertai (Holotype, MCF-PVPH-37), cf. Patagonykus puertai (MCF-PVPH-38), Patagonykinae indet. (MCF-PVPH-102), Alvarezsaurus calvoi (Holotype, MUCPv-54), Achillesaurus...
Article
The abundant record of theropods from Bajo de La Carpa Formation (Neuquén Group, Santonian), known from the end of the nineteenth century, come from numerous locations within the Neuquén Basin. During the excavation of the titanosaur Bonitasaura salgadoi at the La Bonita fossiliferous site, northwest of Río Negro province Argentina, were recovered...
Conference Paper
El abundante registro de terópodos de la Formación Bajo de la Carpa (Grupo Neuquén, Santoniano), conocido desde fines del siglo XIX, proviene de numerosas localidades dentro de la Cuenca Neuquina. Durante la excavación del titanosaurio Bonitasaura salgadoi en la localidad de La Bonita, ubicada en las cercanías de Cerro Policía, en el noroeste de la...
Conference Paper
Alvarezsauria is most well known for their forelimb and its tail evolution but less is known about the function of other parts of their bodies. Therefore, the morphology and dimensions of the pelvis and hindlimbs also are a proxy of the morphofunctional properties of this clade. Here we perform two analyses, namely, a quantitative analysis about di...
Article
The discovery of theropod shed teeth associated with sauropod remains is relatively common in Cretaceous deposits of Patagonia. However, only a handful of studies have thoroughly explored the phylogenetic affinities of the theropod dental material. Here, we describe and identify twelve theropod shed teeth associated with a partially complete skelet...
Article
The deposits corresponding to the Upper Cretaceous Neuquén and San Jorge Gulf basins from northern and central Patagonia have provided two of the most complete sequences of terrestrial vertebrate faunas of all Gondwanan landmasses. Among the carnivorous components, the carcharodontosaurid theropods appeared as common elements during the Early Creta...
Article
The anatomy of the alvarezsaurian tail has received relatively little attention in the paleontological literature, even though it shows a peculiar combination of anatomical characteristics that are unique among theropod dinosaurs. Nearly complete, informative tails are known from early-branching, intermediate, and late-branching taxa, allowing for...
Conference Paper
Full-text available
Coelurosauria is a well-supported clade of later-diverging theropod whose interrelationships are complex, but that contains a large diversity of mostly carnivorous and some herbivorous non-avian theropods as well as living birds. In 2019, Hartman and collaborators recovered Fukuivenator paradoxus Azuma, Xu, Shibata, Kawabe, Miyata and Imai (2016) a...
Conference Paper
Full-text available
Parvicursorinae is a subclade of alvarezaurid theropods, composed by forms from the Upper Cretaceous of Laurasia. In 2017, Averianov and Sues described fragmentary remains (ZIN PH 2440/16, ZIN PH 2441/16, ZIN PH 2442/16, ZIN PH 2443/16, ZIN PH 2444/16, ZIN PH 2445/16, ZIN PH 2446/16) assigned to the aforementioned subclade, from Bissekty Formation...
Poster
Full-text available
The fossil record of carcharodontosaurid theropods is frequent in the “middle” Cretaceous of the Neuquén Basin, with three taxa described to date: Giganotosaurus carolinii Coria and Salgado from the Candeleros Formation and Mapusaurus roseae Coria and Currie, and Taurovenator violantei Motta et al. from the overlying Huincul Formation. Additionally...
Conference Paper
Full-text available
Noasauridae is a family of abelisauroid theropods that has a scarce record in South America, which, up to now, was only represented by small-sized forms from the Hauterivian (Lower Cretaceous) Ligabueino andesi Bonaparte; the Santonian (Upper Cretaceous) Velocisaurus unicus Bonaparte; and the Campanian-Maastrichtian (Upper Cretaceous) Noasaurus lea...
Conference Paper
Full-text available
Alvarezsaurid forelimbs are markedly short and have a robust digit I ending in a stout ungual phalanx. Recently, two new basal alvarezsaurids, Bannykus and Xiyunykus Xu et al., were published, yielding evidence on the evolution of this part of the skeleton in this group of coelurosaurian theropod dinosaurs. The inclusion of Bannykus and Xiyunykus (...
Conference Paper
Full-text available
Alvarezsauridae is a group of small-sized coelurosaurian theropods, known from Upper Cretaceous deposits of North America, Asia and South America. Although many new alvarezsaurid species have been recently discovered, and the knowledge of their anatomy has largely improved over the last decade, the phylogenetic relationships of Alvarezsauridae are...
Conference Paper
Full-text available
From the pioneering work of Currie and collaborators at the beginning of the 90's, a large number of qualitative and quantitative parameters began to be established and systematized, with the aim of achieving a more precise classification of isolated theropod teeth. Due to exposure of these materials to taphonomic processes, the missing data are re...
Conference Paper
Full-text available
The small coelurosaur theropod Patagonykus puertai (PVPH-37), recovered in Portezuelo Formation (Turonian-Coniacian, Upper Cretaceous), from Neuquén province, Argentina, was originally published as represented by postcranial elements of a single individual. A recent review of the holotype specimen has revealed the presence of several cranial remain...
Conference Paper
Full-text available
Available information about dental morphology of dicraeosaurid sauropods is scarce worldwide, only known from the Upper Jurassic Dicraeosaurus Janensch, 1914 and Suuwassea Harris and Dodson, 2004; and isolated teeth from the Lower Cretaceous putatively referred to Amargasaurus Salgado and Bonaparte, 1991. Here we report three teeth collected associ...
Conference Paper
Full-text available
Megaraptora es un clado de dinosaurios terópodos cretácicos, cuyas relaciones filogenéticas dentro de los Tetanurae son bas-tante discutidas, y cuyos registros provienen de Australia, Japón y principalmente de América del Sur; con al menos cuatro especies diferentes. El objetivo de este trabajo es brindar una descripción en detalle de la dentición...
Conference Paper
Full-text available
En el año 2006, Agnolín y colaboradores presentaron una serie de restos fragmentarios pertenecientes a un nuevo alvarez-sáurido proveniente de la localidad Salitral Ojo de Agua (provincia de Río Negro), el cual fue asignado seis años después, a una nueva especie: Bonapartenykus ultimus Agnolín, Powell, Novas y Kundrát (MPCA 1290). Este espécimen no...
Thesis
Se estudiaron 13 dientes aislados de dinosaurios terópodos provenientes de dos yacimientos cercanos ubicados en la localidad de Paso Córdoba (General Roca, Rio Negro); en ambos casos, los dientes se encontraban en asociación con restos esqueletarios de saurópodos titanosaurios. Estos yacimientos fosilíferos corresponden a la Formación Allen (Campan...

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Projects

Projects (4)
Project
The general objective of this project is to integrate osteology and myological reconstruction of alvarezsaurid theropods in order to better understand their functional and locomotor capacities and shed light on their lifestyle.
Project
The objective of this project is to conduct studies about the osteological aspects of Alvarezsauria, focusing on the representatives of the Alvarezsauridae clade.