Pliensbachian ammonites from Southern Vendée (France). Toward the individualization of an Atlantic paleobiogeographic region
The Lower Pliensbachian series (Ibex Chronozone) of Southern Vendée (France) contains a unique mix of ammonites, with several Polymorphitidae, Uptonia atlantica [Fauré and Bohain, 2017], and Dayiceras dayiceroides [Mouterde, 1951], whose distribution till date seemed restricted to the Lusitanian Bas...
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| Format: | Article |
| Language: | English |
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Académie des sciences
2022-07-01
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| Series: | Comptes Rendus. Géoscience |
| Subjects: | |
| Online Access: | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.136/ |
| _version_ | 1827785125345099776 |
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| author | Fauré, Philippe Bohain, Patrick |
| author_facet | Fauré, Philippe Bohain, Patrick |
| author_sort | Fauré, Philippe |
| collection | DOAJ |
| description | The Lower Pliensbachian series (Ibex Chronozone) of Southern Vendée (France) contains a unique mix of ammonites, with several Polymorphitidae, Uptonia atlantica [Fauré and Bohain, 2017], and Dayiceras dayiceroides [Mouterde, 1951], whose distribution till date seemed restricted to the Lusitanian Basin. As in Portugal, these taxa extend the linear evolutionary sequence of this family during the Masseanum and Valdani Subchronozones. Their discovery in Vendée enables qualifying the importance of the Lusitanian endemism. It allows integrating the Lusitanian Basin and Vendée, which paleogeographic reconstructions place closer, into the same Atlantic paleobiogeographic area. It can be extended to the western borders of the North-West European Bioprovince. During the Late Pliensbachian, it is probably through a diffusion within this paleogeographic area that the Tethyan taxa, which are very numerous in Portugal, would have reached Vendée and Western Europe in successive waves. It seems that this atlantic communication route was privileged, at least until the Early Toarcian. |
| first_indexed | 2024-03-11T16:13:37Z |
| format | Article |
| id | doaj.art-cfd004c12e414bdfb58920eb39e8fb81 |
| institution | Directory Open Access Journal |
| issn | 1778-7025 |
| language | English |
| last_indexed | 2024-03-11T16:13:37Z |
| publishDate | 2022-07-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus. Géoscience |
| spelling | doaj.art-cfd004c12e414bdfb58920eb39e8fb812023-10-24T14:24:31ZengAcadémie des sciencesComptes Rendus. Géoscience1778-70252022-07-01354S352510.5802/crgeos.13610.5802/crgeos.136Pliensbachian ammonites from Southern Vendée (France). Toward the individualization of an Atlantic paleobiogeographic regionFauré, Philippe0Bohain, Patrick1Muséum d’Histoire naturelle de Toulouse, 35 allées Jules Guesde, 31000, Toulouse, FranceImpasse Clément Bertrand, 85100, Les Sables d’Olonne, FranceThe Lower Pliensbachian series (Ibex Chronozone) of Southern Vendée (France) contains a unique mix of ammonites, with several Polymorphitidae, Uptonia atlantica [Fauré and Bohain, 2017], and Dayiceras dayiceroides [Mouterde, 1951], whose distribution till date seemed restricted to the Lusitanian Basin. As in Portugal, these taxa extend the linear evolutionary sequence of this family during the Masseanum and Valdani Subchronozones. Their discovery in Vendée enables qualifying the importance of the Lusitanian endemism. It allows integrating the Lusitanian Basin and Vendée, which paleogeographic reconstructions place closer, into the same Atlantic paleobiogeographic area. It can be extended to the western borders of the North-West European Bioprovince. During the Late Pliensbachian, it is probably through a diffusion within this paleogeographic area that the Tethyan taxa, which are very numerous in Portugal, would have reached Vendée and Western Europe in successive waves. It seems that this atlantic communication route was privileged, at least until the Early Toarcian.https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.136/Lusitanian BasinJurassicPliensbachianAmmonitina<i>Dayiceras</i><i>Uptonia</i>VendéeLusitanian Basin |
| spellingShingle | Fauré, Philippe Bohain, Patrick Pliensbachian ammonites from Southern Vendée (France). Toward the individualization of an Atlantic paleobiogeographic region Comptes Rendus. Géoscience Lusitanian Basin Jurassic Pliensbachian Ammonitina <i>Dayiceras</i> <i>Uptonia</i> Vendée Lusitanian Basin |
| title | Pliensbachian ammonites from Southern Vendée (France). Toward the individualization of an Atlantic paleobiogeographic region |
| title_full | Pliensbachian ammonites from Southern Vendée (France). Toward the individualization of an Atlantic paleobiogeographic region |
| title_fullStr | Pliensbachian ammonites from Southern Vendée (France). Toward the individualization of an Atlantic paleobiogeographic region |
| title_full_unstemmed | Pliensbachian ammonites from Southern Vendée (France). Toward the individualization of an Atlantic paleobiogeographic region |
| title_short | Pliensbachian ammonites from Southern Vendée (France). Toward the individualization of an Atlantic paleobiogeographic region |
| title_sort | pliensbachian ammonites from southern vendee france toward the individualization of an atlantic paleobiogeographic region |
| topic | Lusitanian Basin Jurassic Pliensbachian Ammonitina <i>Dayiceras</i> <i>Uptonia</i> Vendée Lusitanian Basin |
| url | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.136/ |
| work_keys_str_mv | AT faurephilippe pliensbachianammonitesfromsouthernvendeefrancetowardtheindividualizationofanatlanticpaleobiogeographicregion AT bohainpatrick pliensbachianammonitesfromsouthernvendeefrancetowardtheindividualizationofanatlanticpaleobiogeographicregion |