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Diversification trajectories and paleobiogeography of Neogene chondrichthyans from Europe

Jaime A. Villafaña Orcid Logo, Marcelo M. Rivadeneira, Catalina Pimiento Orcid Logo, Jürgen Kriwet Orcid Logo, Jose Lopez Aguilar, Hamid Tamaddon Jahromi

Paleobiology, Volume: 49, Issue: 2, Pages: 329 - 341

Swansea University Authors: Catalina Pimiento Orcid Logo, Jose Lopez Aguilar, Hamid Tamaddon Jahromi

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DOI (Published version): 10.1017/pab.2022.40

Abstract

Despite the rich fossil record of Neogene chondrichthyans (chimaeras, sharks, rays, and skates) from Europe, little is known about the macroevolutionary processes that generated their current diversity and geographical distribution. We compiled 4368 Neogene occurrences comprising 102 genera, 41 fami...

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Published in: Paleobiology
ISSN: 0094-8373 1938-5331
Published: Cambridge University Press (CUP) 2023
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa63658
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Abstract: Despite the rich fossil record of Neogene chondrichthyans (chimaeras, sharks, rays, and skates) from Europe, little is known about the macroevolutionary processes that generated their current diversity and geographical distribution. We compiled 4368 Neogene occurrences comprising 102 genera, 41 families, and 12 orders from four European regions (Atlantic, Mediterranean, North Sea, and Paratethys) and evaluated their diversification trajectories and paleobiogeographic patterns. In all regions analyzed, we found that generic richness increased during the early Miocene, then decreased sharply during the middle Miocene in the Paratethys, and moderately during the late Miocene and Pliocene in the Mediterranean and North Seas. Origination rates display the most significant pulses in the early Miocene in all regions. Extinction rate pulses varied across regions, with the Paratethys displaying the most significant pulses during the late Miocene and the Mediterranean and North Seas during the late Miocene and early Pliocene. Overall, up to 27% and 56% of the European Neogene genera are now globally and regionally extinct, respectively. The observed pulses of origination and extinction in the different regions coincide with warming and cooling events that occurred during the Neogene globally and regionally. Our study reveals complex diversity dynamics of Neogene chondrichthyans from Europe and their distinct biogeographic composition despite the multiple marine passages that connected the different marine regions during this time.
College: Faculty of Science and Engineering
Funders: This research was supported by Becas de Doctorado en el Extranjero, Becas Chile (grant 72160271) and a SYNTHESYS grant (DE-TAF). This project was partially funded by ANID/FONDECYT no. 1200843, ANID/CENTROS REGIONALES R20F0008 (CLAP), and Millennium Science Initiative Nucleus UPWELL (NCN19–153) (to M.M.R.). C.P. is funded by a PRIMA grant from the Swiss National Science Foundation (no. 185798). This research was funded in part by the Austrian Science Fund (FWF) [P 33820] to J.K.
Issue: 2
Start Page: 329
End Page: 341