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https://hdl.handle.net/10316/96856
Título: | The impact of the Pliensbachian–Toarcian crisis on belemnite assemblages and size distribution | Autor: | De Baets, Kenneth Nätscher, Paulina S. Rita, Patrícia Fara, Emmanuel Neige, Pascal Bardin, Jérémie Dera, Guillaume Duarte, L. V. Hughes, Zoe Laschinger, Peter García-Ramos, José Carlos Piñuela, Laura Übelacker, Christof Weis, Robert |
Palavras-chave: | Belemnitida; Cephalopoda; Paleoecology; Rarefaction; Rostrum size; Sampling | Data: | 2021 | Editora: | Springer | Título da revista, periódico, livro ou evento: | Swiss Journal of Palaeontology | Volume: | 140 | Número: | 1 | Resumo: | The second-order Pliensbachian–Toarcian crisis affected major groups of marine organisms. While its impact has been intensively studied for ammonites, the response of belemnites is only currently emerging through quantitative studies. Novel overall and regional diversity analyses suggest that belemnite richness in the NW-Tethys drops at the Pliensbachian–Toarcian boundary, while overall diversity slightly increases in NW-Tethys assemblages during the Toarcian Oceanic Anoxic event (T-OAE), mostly driven by NW European assemblages (e.g., Yorkshire). The T-OAE coincides with marked taxonomic turnover within individual basins, which is associated with an increase in median rostrum size of specimens in taxa at most localities. The changes in median body size across the Pliensbachian–Toarcian boundary are less consistent and driven by changes in body size within individual lineages crossing the boundary. However, our analyses also illustrate differences in sampling across the Pliensbachian–Toarcian crisis, which needs to be considered in further studies. © 2021, The Author(s). | URI: | https://hdl.handle.net/10316/96856 | ISSN: | 1664-2376 1664-2384 |
DOI: | 10.1186/s13358-021-00242-y | Direitos: | openAccess |
Aparece nas coleções: | I&D MARE - Artigos em Revistas Internacionais |
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s13358-021-00242-y.pdf | 1.59 MB | Adobe PDF | Ver/Abrir |
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