Application of linear morphometry and sclerochronology in brachiopods from the Paraná Basin to identify biotic crises of the Lower-Middle Devonian.

• Grant number: 25/07209-0
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: August 01, 2025
• End date: July 31, 2026
• Field of knowledge: Biological Sciences - Zoology - Paleozoology
• Principal Investigator: Renato Pirani Ghilardi
• Grantee: Victor Rodrigues Ribeiro
• Host Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil
• Associated research grant: 24/16899-7 - Marine incursions and faunistic exchanges in the interior of South America during the Devonian and the paleobiogeographic impacts in the Paraná Basin, AP.R

Abstract

The Early-Middle Devonian biotic crises (Zlíchov, Daleje and Chote¿) were driven by paleoenvironmental and paleoclimatic factors, as well as eustatic oscillations of the sea, impacting the marine fauna on a regional and global scale. The Paraná Basin hosted a brachiopod fauna with a high degree of generic endemism and low specific diversity, the Malvinoxhosan fauna. Ichnological and geochemical studies have already indicated the presence of Zlíchov, Daleje and Chote¿ in the Paraná Basin, but it is necessary to also investigate the brachiopod fauna, due to its paleontological and paleoenvironmental importance. Thus, this project seeks to recognize the biotic crises that affected the brachiopod fauna in the Paraná Basin during the Early-Middle Devonian. For this purpose, linear morphometry and sclerochronology will be applied to specimens of the genera Australocoelia and Orbiculoidea for better visualization of these global events. (AU)