First record of buccinid genus Chauvetia(Mollusca: Gastropoda) from the fossil record of the New World (Miocene, Venezuela) and its paleobiogeographic implications
Abstract Until now, the buccinid genus Chauvetia was considered of European or West African origin, and is still endemic to these areas today. This paper describes the oldest representative of the genus, Chauvetia inopinata nov. sp., from the upper Burdigalian-lower Langhian transition Cantaure Form...
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Online Access: | http://dx.doi.org/10.1017/jpa.2015.15 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336015000153 |
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crcambridgeupr:10.1017/jpa.2015.15 2024-06-23T07:54:51+00:00 First record of buccinid genus Chauvetia(Mollusca: Gastropoda) from the fossil record of the New World (Miocene, Venezuela) and its paleobiogeographic implications Landau, Bernard da Silva, Carlos M. Vermeij, Geerat J. 2015 http://dx.doi.org/10.1017/jpa.2015.15 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336015000153 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of Paleontology volume 89, issue 3, page 487-493 ISSN 0022-3360 1937-2337 journal-article 2015 crcambridgeupr https://doi.org/10.1017/jpa.2015.15 2024-06-12T04:04:37Z Abstract Until now, the buccinid genus Chauvetia was considered of European or West African origin, and is still endemic to these areas today. This paper describes the oldest representative of the genus, Chauvetia inopinata nov. sp., from the upper Burdigalian-lower Langhian transition Cantaure Formation of Venezuela. This surprising record suggests a New World tropical origin to the genus and subsequent immigration to the Old World before the earliest known Old World record, which is upper Tortonian. We postulate that this pre-late Tortonian (pre-8.12–7.42 Ma) dispersal of the tropical Gatunian west-Atlantic Chauvetia into the tropical East Atlantic European-West African Province most probably happened during the 10.71–9.36 Ma interval (early–mid Tortonian) during which the Circum-Tropical Current weakened, and the northward Intra-Caribbean Current had started, enhancing the Gulf Stream and the North Atlantic Current. This new data constitutes compelling evidence of a pre-Pliocene eastward dispersal of New World shallow marine organisms across the Atlantic. Article in Journal/Newspaper north atlantic current North Atlantic Cambridge University Press Journal of Paleontology 89 3 487 493 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Until now, the buccinid genus Chauvetia was considered of European or West African origin, and is still endemic to these areas today. This paper describes the oldest representative of the genus, Chauvetia inopinata nov. sp., from the upper Burdigalian-lower Langhian transition Cantaure Formation of Venezuela. This surprising record suggests a New World tropical origin to the genus and subsequent immigration to the Old World before the earliest known Old World record, which is upper Tortonian. We postulate that this pre-late Tortonian (pre-8.12–7.42 Ma) dispersal of the tropical Gatunian west-Atlantic Chauvetia into the tropical East Atlantic European-West African Province most probably happened during the 10.71–9.36 Ma interval (early–mid Tortonian) during which the Circum-Tropical Current weakened, and the northward Intra-Caribbean Current had started, enhancing the Gulf Stream and the North Atlantic Current. This new data constitutes compelling evidence of a pre-Pliocene eastward dispersal of New World shallow marine organisms across the Atlantic. |
format |
Article in Journal/Newspaper |
author |
Landau, Bernard da Silva, Carlos M. Vermeij, Geerat J. |
spellingShingle |
Landau, Bernard da Silva, Carlos M. Vermeij, Geerat J. First record of buccinid genus Chauvetia(Mollusca: Gastropoda) from the fossil record of the New World (Miocene, Venezuela) and its paleobiogeographic implications |
author_facet |
Landau, Bernard da Silva, Carlos M. Vermeij, Geerat J. |
author_sort |
Landau, Bernard |
title |
First record of buccinid genus Chauvetia(Mollusca: Gastropoda) from the fossil record of the New World (Miocene, Venezuela) and its paleobiogeographic implications |
title_short |
First record of buccinid genus Chauvetia(Mollusca: Gastropoda) from the fossil record of the New World (Miocene, Venezuela) and its paleobiogeographic implications |
title_full |
First record of buccinid genus Chauvetia(Mollusca: Gastropoda) from the fossil record of the New World (Miocene, Venezuela) and its paleobiogeographic implications |
title_fullStr |
First record of buccinid genus Chauvetia(Mollusca: Gastropoda) from the fossil record of the New World (Miocene, Venezuela) and its paleobiogeographic implications |
title_full_unstemmed |
First record of buccinid genus Chauvetia(Mollusca: Gastropoda) from the fossil record of the New World (Miocene, Venezuela) and its paleobiogeographic implications |
title_sort |
first record of buccinid genus chauvetia(mollusca: gastropoda) from the fossil record of the new world (miocene, venezuela) and its paleobiogeographic implications |
publisher |
Cambridge University Press (CUP) |
publishDate |
2015 |
url |
http://dx.doi.org/10.1017/jpa.2015.15 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336015000153 |
genre |
north atlantic current North Atlantic |
genre_facet |
north atlantic current North Atlantic |
op_source |
Journal of Paleontology volume 89, issue 3, page 487-493 ISSN 0022-3360 1937-2337 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/jpa.2015.15 |
container_title |
Journal of Paleontology |
container_volume |
89 |
container_issue |
3 |
container_start_page |
487 |
op_container_end_page |
493 |
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1802647143669825536 |