A5025806868- Paleontology and Evolutionary Biology
- Evolution and Paleontology Studies
- Ichthyology and Marine Biology
- Paleontology and Stratigraphy of Fossils
- Amphibian and Reptile Biology
- Bat Biology and Ecology Studies
- Morphological variations and asymmetry
- Pleistocene-Era Hominins and Archaeology
- Geological formations and processes
Fundación Seimc-Gesida
2021-2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2021-2024
Universidad Maimónides
2022-2024
Centro Científico Tecnológico - Tucumán
2024
Fundación para la Investigación, Docencia y Prevención del Cáncer
2023
University of Chile
2020-2021
Abstract In the last decades, several discoveries have uncovered complexity of mammalian evolution during Mesozoic Era, including important Gondwanan lineages: australosphenidans, gondwanatherians, and meridiolestidans (Dryolestoidea). Most often, their presence diversity is documented by isolated teeth jaws. Here, we describe a new meridiolestidan mammal, Orretherium tzen gen. et sp. nov., from Late Cretaceous southern Chile, based on partial jaw with five cheek in locis an upper premolar....
In the dusk of Mesozoic, advanced duck-billed dinosaurs (Hadrosauridae) were so successful that they likely outcompeted other herbivores, contributing to declines in dinosaur diversity. From Laurasia, hadrosaurids dispersed widely, colonizing Africa, South America, and, allegedly, Antarctica. Here, we present first species a from subantarctic region, Gonkoken nanoi, early Maastrichtian age Magallanes, Chile. Unlike duckbills further north Patagonia, descends North American forms diverging...
Abstract The study of thirty-two shed crowns from the Portezuelo Formation (middle Turonian-late Coniacian) at Sierra del locality, reveals six distinct tooth morphotypes identified through cladistic, discriminant, and cluster analyses. Two were as belonging to Megaraptoridae, three Abelisauridae, one Abelisauroidea, Alvarezsauridae. Additionally, two exhibit a combination dental features typically found in megaraptorid abelisauridtheropods. These results suggest greater diversity theropods...
Se describe a Magallanodon baikashkenke gen. et. sp. nov., un nuevo mamífero gondwanaterio del Cretácico tardío de la Región Magallanes, en el sur Chile (Valle Río Las Chinas, Estancia Cerro Guido, norte Puerto Natales, Provincia Última Esperanza). capas portadoras se ubican entre los niveles Campaniano tardío-Maastrichtiano temprano Formación Dorotea (Cuenca Magallanes/Austral). Los nuevos restos constituyen registro más austral Mesozoico, como así también primer Mesozoico conocido para...
<title>Abstract</title> The study of thirty-two shed crowns from the Portezuelo Formation (middle Turonian-late Coniacian) at Sierra del locality, reveals six distinct tooth morphotypes identified through cladistic, discriminant, and cluster analyses. Two were as belonging to Megaraptoridae, three Abelisauridae, one Abelisauroidea, Alvarezsauridae. Additionally, two exhibit a combination dental features typically found in megaraptorid abelisauridtheropods. These results suggest greater...
Fil: Goin, Francisco Javier. Universidad Nacional de La Plata. Facultad Ciencias Naturales y Museo. Division Paleontologia Vertebrados; Argentina. Consejo Investigaciones Cientificas Tecnicas. Centro Cientifico Tecnologico Conicet - Plata; Argentina
<title>Abstract</title> The Portezuelo Formation preserves an outstanding record of the upper Turonian - lower Coniacian Gondwana. Despite discovery a significant amount sauropod fossil material from Formation, only two species have been formally described to date: <italic>Malarguesaurus florenciae</italic> and <italic>Futalognkosaurus dukei</italic>. Here we present new mostly composed non-articulated caudal vertebrae that belong at least different titanosauriforms on basis following...
Abstract The Portezuelo Formation preserves an outstanding record of the upper Turonian – lower Coniacian. Despite discovery a significant quantity sauropod fossil material from formation, only two species have been formally described to date: Malarguesaurus florenciae and Futalognkosaurus dukei . Here we present new mostly composed non-articulated caudal vertebrae (MCF-PVPH 916 917) that belong titanosauriforms on basis following features: anterior with procoelous-opisthoplatyan...
Abstract In the dusk of dinosaur era, advanced duck-billed dinosaurs (Family Hadrosauridae) are thought to have outcompeted other herbivores, making ecosystems less diverse and more vulnerable Cretaceous-Paleogene asteroid impact. They were also among first terrestrial organisms disperse from North America into South America. Here, we present new species subantarctic dinosaur, CPAP 3054, early Maastrichtian age in Magallanes, Chile. Surprisingly, unlike duckbills further north Patagonia,...
Abstract Armoured dinosaurs are well known for forms that evolved specialized tail weapons: paired spikes in stegosaurs, and heavy clubs advanced ankylosaurs1. from southern Gondwana rare enigmatic, but likely include the earliest branches of Ankylosauria2-4. Here, we describe a mostly complete, semiarticulated skeleton small (about 2m) armoured dinosaur late Cretaceous Magallanes southernmost Chile, region biogeographically related to West Antarctica5. Stegouros elengassen gen. et sp. nov....