Jonathan Ledesma

ORCID: 0000-0003-1941-7335
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About
Contact & Profiles
Research Areas
  • Geological and Geochemical Analysis
  • Geology and Paleoclimatology Research
  • Parasite Biology and Host Interactions
  • Ichthyology and Marine Biology
  • Geological and Tectonic Studies in Latin America
  • Archaeological and Geological Studies
  • Marine Biology and Ecology Research
  • Subterranean biodiversity and taxonomy
  • Paleontology and Evolutionary Biology
  • Geological formations and processes
  • Geological and Geophysical Studies Worldwide
  • earthquake and tectonic studies
  • Fish biology, ecology, and behavior

Universidad Nacional de Córdoba
2019-2022

Research Center on Earth Sciences
2019-2022

Consejo Nacional de Investigaciones Científicas y Técnicas
2019-2022

We report a new small podocnemidid, Gestemys powelli gen. et sp. nov., based on one nearly complete skull, lower jaw, two shells, and remains of the appendicular skeleton belonging to specimens from Eocene Geste Formation San Antonio de la Cobres Basin, Salta Province, north-western Argentina. As in other podocnemidid genera, exhibits fully developed medially extensive cavum pterygoidei, an incisura columellae auris enclosing stapes Eustachian tube, lacks exoccipital quadrate contact. bears...

10.1080/14772019.2022.2081939 article EN Journal of Systematic Palaeontology 2022-07-25

ABSTRACT The Puna–Altiplano Plateau of the Central Andes is second-highest plateau in world (after Tibet), with a mean elevation 4000 m.a.s.l. and an arid to hyperarid climate. Uplift has affected lower-level atmospheric circulation, acting as barrier humid easterly winds from Amazon basin favoring across-strike precipitation gradient resulting climate towards east orogen's interior. In modern climate, Bolivian High anticyclone regulates upper troposphere but little known about high-altitude...

10.2110/jsr.2021.018 article EN Journal of Sedimentary Research 2022-01-14
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