Biogeography of northeastern Atlantic Neogene chitons (Mollusca, Polyplacophora): New data from the Pliocene of Portugal
Based on extensive new material, 2088 valves resulting from search sampling of ∼500 kg of sediment, the Pliocene chiton biodiversity of the Mondego Basin (Portugal) is reassessed. Twelve species were identified, assigned to seven genera. Eight species are new for the Pliocene of Portugal, as well as...
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The Paleontological Society
2022
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ftbioone:10.1017/jpa.2022.1 2024-06-02T08:11:57+00:00 Biogeography of northeastern Atlantic Neogene chitons (Mollusca, Polyplacophora): New data from the Pliocene of Portugal Bruno Dell'Angelo Bernard M. Landau Carlos Marques da Silva Maurizio Sosso Bruno Dell'Angelo Bernard M. Landau Carlos Marques da Silva Maurizio Sosso world 2022-06-30 text/HTML https://doi.org/10.1017/jpa.2022.1 en eng The Paleontological Society doi:10.1017/jpa.2022.1 All rights reserved. https://doi.org/10.1017/jpa.2022.1 Text 2022 ftbioone https://doi.org/10.1017/jpa.2022.1 2024-05-07T00:48:07Z Based on extensive new material, 2088 valves resulting from search sampling of ∼500 kg of sediment, the Pliocene chiton biodiversity of the Mondego Basin (Portugal) is reassessed. Twelve species were identified, assigned to seven genera. Eight species are new for the Pliocene of Portugal, as well as two of the genera: Hanleya, Acanthochitona. Two taxa are described as new: Ischnochiton loureiroi n. sp. and Lepidochitona rochae n. sp. Until now, the polyplacophoran European Neogene record was too poorly known to be of help in generating a clear picture of the Miocene to present-day biogeography of the group. This new wealth of data from western Iberia, in conjunction with recent data from the Loire Basin Upper Miocene assemblages (France), allows clarification the Late Miocene to Recent eastern Atlantic and Mediterranean biogeography of the Polyplacophora. The northern range of warm-water northeast Atlantic and Mediterranean Polyplacophora experienced a sharp contraction since, at least, Late Miocene to Early Pliocene times. Warm-water chiton species represented in the Upper Miocene of the Loire Basin of NE France (European-West African Province) and the Pliocene of the Mondego Basin of central-west Portugal (Pliocene French-Iberian Province) are today confined to the southern Mediterranean-Moroccan Molluscan Province. Text Northeast Atlantic BioOne Online Journals Journal of Paleontology 96 4 814 838 |
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English |
description |
Based on extensive new material, 2088 valves resulting from search sampling of ∼500 kg of sediment, the Pliocene chiton biodiversity of the Mondego Basin (Portugal) is reassessed. Twelve species were identified, assigned to seven genera. Eight species are new for the Pliocene of Portugal, as well as two of the genera: Hanleya, Acanthochitona. Two taxa are described as new: Ischnochiton loureiroi n. sp. and Lepidochitona rochae n. sp. Until now, the polyplacophoran European Neogene record was too poorly known to be of help in generating a clear picture of the Miocene to present-day biogeography of the group. This new wealth of data from western Iberia, in conjunction with recent data from the Loire Basin Upper Miocene assemblages (France), allows clarification the Late Miocene to Recent eastern Atlantic and Mediterranean biogeography of the Polyplacophora. The northern range of warm-water northeast Atlantic and Mediterranean Polyplacophora experienced a sharp contraction since, at least, Late Miocene to Early Pliocene times. Warm-water chiton species represented in the Upper Miocene of the Loire Basin of NE France (European-West African Province) and the Pliocene of the Mondego Basin of central-west Portugal (Pliocene French-Iberian Province) are today confined to the southern Mediterranean-Moroccan Molluscan Province. |
author2 |
Bruno Dell'Angelo Bernard M. Landau Carlos Marques da Silva Maurizio Sosso |
format |
Text |
author |
Bruno Dell'Angelo Bernard M. Landau Carlos Marques da Silva Maurizio Sosso |
spellingShingle |
Bruno Dell'Angelo Bernard M. Landau Carlos Marques da Silva Maurizio Sosso Biogeography of northeastern Atlantic Neogene chitons (Mollusca, Polyplacophora): New data from the Pliocene of Portugal |
author_facet |
Bruno Dell'Angelo Bernard M. Landau Carlos Marques da Silva Maurizio Sosso |
author_sort |
Bruno Dell'Angelo |
title |
Biogeography of northeastern Atlantic Neogene chitons (Mollusca, Polyplacophora): New data from the Pliocene of Portugal |
title_short |
Biogeography of northeastern Atlantic Neogene chitons (Mollusca, Polyplacophora): New data from the Pliocene of Portugal |
title_full |
Biogeography of northeastern Atlantic Neogene chitons (Mollusca, Polyplacophora): New data from the Pliocene of Portugal |
title_fullStr |
Biogeography of northeastern Atlantic Neogene chitons (Mollusca, Polyplacophora): New data from the Pliocene of Portugal |
title_full_unstemmed |
Biogeography of northeastern Atlantic Neogene chitons (Mollusca, Polyplacophora): New data from the Pliocene of Portugal |
title_sort |
biogeography of northeastern atlantic neogene chitons (mollusca, polyplacophora): new data from the pliocene of portugal |
publisher |
The Paleontological Society |
publishDate |
2022 |
url |
https://doi.org/10.1017/jpa.2022.1 |
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Northeast Atlantic |
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Northeast Atlantic |
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https://doi.org/10.1017/jpa.2022.1 |
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doi:10.1017/jpa.2022.1 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1017/jpa.2022.1 |
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Journal of Paleontology |
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96 |
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4 |
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814 |
op_container_end_page |
838 |
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1800758243655417856 |