The largest freshwater odontocete: A South Asian river dolphin relative from the proto-Amazonia.

Autor:	Benites-Palomino A; Department of Paleontology, University of Zurich, Karl-Schmid-Strasse 4, 8006 Zürich, Switzerland.; Departamento de Paleontología de Vertebrados, Museo de Historia Natural-Universidad Nacional Mayor de San Marcos, Avenida Arenales 1256, Lima 11, Peru., Aguirre-Fernández G; Department of Paleontology, University of Zurich, Karl-Schmid-Strasse 4, 8006 Zürich, Switzerland., Baby P; Geosciences-Environnements Toulouse, Université de Toulouse, UPS (SVT-OMP), CNRS, IRD, 14 Avenue Édouard Belin, Toulouse 31400, France., Ochoa D; Facultad de Ciencias e Ingienerías/Centro de Investigación para el Desarrollo Integral y Sostenible, Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Lima, Peru.; Departmento de Geología, Universidad de Salamanca, Salamanca 37008, Spain., Altamirano A; Departamento de Paleontología de Vertebrados, Museo de Historia Natural-Universidad Nacional Mayor de San Marcos, Avenida Arenales 1256, Lima 11, Peru., Flynn JJ; Division of Paleontology, American Museum of Natural History, New York, NY 10024, USA.; Department of Earth & Environmental Sciences, Columbia University, New York, NY 10027, USA.; Graduate Programs in Biology and Earth and Environmental Sciences, The Graduate Center, City University of New York, New York, NY 10016, USA., Sánchez-Villagra MR; Department of Paleontology, University of Zurich, Karl-Schmid-Strasse 4, 8006 Zürich, Switzerland., Tejada JV; Departamento de Paleontología de Vertebrados, Museo de Historia Natural-Universidad Nacional Mayor de San Marcos, Avenida Arenales 1256, Lima 11, Peru.; Division of Paleontology, American Museum of Natural History, New York, NY 10024, USA.; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA., de Muizon C; Departement Origines et Evolution, CR2P UMR 7207, (MNHN, CNRS, UPMC, Sorbonne-Université), Muséum National d'Histoire Naturelle, rue Cuvier 57, 75005 Paris, France., Salas-Gismondi R; Departamento de Paleontología de Vertebrados, Museo de Historia Natural-Universidad Nacional Mayor de San Marcos, Avenida Arenales 1256, Lima 11, Peru.; Facultad de Ciencias e Ingienerías/Centro de Investigación para el Desarrollo Integral y Sostenible, Laboratorios de Investigación y Desarrollo, Universidad Peruana Cayetano Heredia, Lima, Peru.; Division of Paleontology, American Museum of Natural History, New York, NY 10024, USA.
Jazyk:	angličtina
Zdroj:	Science advances [Sci Adv] 2024 Mar 22; Vol. 10 (12), pp. eadk6320. Date of Electronic Publication: 2024 Mar 20.
DOI:	10.1126/sciadv.adk6320
Abstrakt:	Several dolphin lineages have independently invaded freshwater systems. Among these, the evolution of the South Asian river dolphin Platanista and its relatives (Platanistidae) remains virtually unknown as fossils are scarce. Here, we describe Pebanista yacuruna gen. et sp. nov., a dolphin from the Miocene proto-Amazonia of Peru, recovered in phylogenies as the closest relative of Platanista . Morphological characters such as an elongated rostrum and large supraorbital crests, along with ecological interpretations, indicate that this odontocete was fully adapted to fresh waters. Pebanista constitutes the largest freshwater odontocete known, with an estimated body length of 3 meters, highlighting the ample resource availability and biotic diversity in the region, during the Early to Middle Miocene. The finding of Pebanista in proto-Amazonian layers attests that platanistids ventured into freshwater ecosystems not only in South Asia but also in South America, before the modern Amazon River dolphin, during a crucial moment for the Amazonian evolution.
Databáze:	MEDLINE
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