New fossil triakid sharks from the early Eocene of Premontre, France, and comments on fossil record of the family
International audience During the last two decades, an abundant selachian assemblage has been collected from the late Ypresian (NP12) fossiliferous sands of Premontre (Aisne, northern France) but has received little attention. Sharks of the family Triakidae (Carcharhiniformes) are particularly well...
Published in: | Acta Palaeontologica Polonica |
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Language: | English |
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ftecolephe:oai:HAL:halsde-00454629v1 2024-05-19T07:44:52+00:00 New fossil triakid sharks from the early Eocene of Premontre, France, and comments on fossil record of the family Adnet, Sylvain Cappetta, Henri Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) 2008 https://hal.science/halsde-00454629 https://hal.science/halsde-00454629/document https://hal.science/halsde-00454629/file/app53-433.pdf https://doi.org/10.4202/app.2008.0306 en eng HAL CCSD Polskiej Akademii Nauk, Instytut Paleobiologii info:eu-repo/semantics/altIdentifier/doi/10.4202/app.2008.0306 halsde-00454629 https://hal.science/halsde-00454629 https://hal.science/halsde-00454629/document https://hal.science/halsde-00454629/file/app53-433.pdf doi:10.4202/app.2008.0306 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0567-7920 EISSN: 1732-2421 Acta Palaeontologica Polonica https://hal.science/halsde-00454629 Acta Palaeontologica Polonica, 2008, 53 (3), pp.433-448. ⟨10.4202/app.2008.0306⟩ Chondrichthyes Triakidae Galeorhinus Gomphogaleus Eocene France [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] info:eu-repo/semantics/article Journal articles 2008 ftecolephe https://doi.org/10.4202/app.2008.0306 2024-04-25T01:25:15Z International audience During the last two decades, an abundant selachian assemblage has been collected from the late Ypresian (NP12) fossiliferous sands of Premontre (Aisne, northern France) but has received little attention. Sharks of the family Triakidae (Carcharhiniformes) are particularly well represented and all are described and figured herein. Among them, two new species of the genus Galeorhinus are described: G. duchaussoisi sp. nov. and G. louisi sp. nov.; these are compared to the common Paleogene G. ypresiensis which is refigured. Another triakid taxon, the genus Gomphogaleus gen. nov., is described. Most of the triakids have been recorded elsewhere in the North Atlantic region, suggesting a wider distribution than expected for these small sharks during the Paleogene. The present paper updates the list of selachians from Premontre, bringing the number of taxa from 19 to 33 (including 22 sharks and 11 batoids) and improving our knowledge of the ancient North Atlantic Ypresian selachian fauna. Despite this vastly improved record, it is clear that fossil data are still very incomplete and insufficient for calibrating phylogenetic hypotheses of living forms. Review of the Premontre fauna shows that the Triakidae were much more diverse and broadly distributed than at present, suggesting that the limited distribution and low diversity of living forms is probably a recent phenomenon. Article in Journal/Newspaper North Atlantic EPHE (Ecole pratique des hautes études, Paris): HAL Acta Palaeontologica Polonica 53 3 433 448 |
institution |
Open Polar |
collection |
EPHE (Ecole pratique des hautes études, Paris): HAL |
op_collection_id |
ftecolephe |
language |
English |
topic |
Chondrichthyes Triakidae Galeorhinus Gomphogaleus Eocene France [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] |
spellingShingle |
Chondrichthyes Triakidae Galeorhinus Gomphogaleus Eocene France [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] Adnet, Sylvain Cappetta, Henri New fossil triakid sharks from the early Eocene of Premontre, France, and comments on fossil record of the family |
topic_facet |
Chondrichthyes Triakidae Galeorhinus Gomphogaleus Eocene France [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] |
description |
International audience During the last two decades, an abundant selachian assemblage has been collected from the late Ypresian (NP12) fossiliferous sands of Premontre (Aisne, northern France) but has received little attention. Sharks of the family Triakidae (Carcharhiniformes) are particularly well represented and all are described and figured herein. Among them, two new species of the genus Galeorhinus are described: G. duchaussoisi sp. nov. and G. louisi sp. nov.; these are compared to the common Paleogene G. ypresiensis which is refigured. Another triakid taxon, the genus Gomphogaleus gen. nov., is described. Most of the triakids have been recorded elsewhere in the North Atlantic region, suggesting a wider distribution than expected for these small sharks during the Paleogene. The present paper updates the list of selachians from Premontre, bringing the number of taxa from 19 to 33 (including 22 sharks and 11 batoids) and improving our knowledge of the ancient North Atlantic Ypresian selachian fauna. Despite this vastly improved record, it is clear that fossil data are still very incomplete and insufficient for calibrating phylogenetic hypotheses of living forms. Review of the Premontre fauna shows that the Triakidae were much more diverse and broadly distributed than at present, suggesting that the limited distribution and low diversity of living forms is probably a recent phenomenon. |
author2 |
Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Adnet, Sylvain Cappetta, Henri |
author_facet |
Adnet, Sylvain Cappetta, Henri |
author_sort |
Adnet, Sylvain |
title |
New fossil triakid sharks from the early Eocene of Premontre, France, and comments on fossil record of the family |
title_short |
New fossil triakid sharks from the early Eocene of Premontre, France, and comments on fossil record of the family |
title_full |
New fossil triakid sharks from the early Eocene of Premontre, France, and comments on fossil record of the family |
title_fullStr |
New fossil triakid sharks from the early Eocene of Premontre, France, and comments on fossil record of the family |
title_full_unstemmed |
New fossil triakid sharks from the early Eocene of Premontre, France, and comments on fossil record of the family |
title_sort |
new fossil triakid sharks from the early eocene of premontre, france, and comments on fossil record of the family |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.science/halsde-00454629 https://hal.science/halsde-00454629/document https://hal.science/halsde-00454629/file/app53-433.pdf https://doi.org/10.4202/app.2008.0306 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0567-7920 EISSN: 1732-2421 Acta Palaeontologica Polonica https://hal.science/halsde-00454629 Acta Palaeontologica Polonica, 2008, 53 (3), pp.433-448. ⟨10.4202/app.2008.0306⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.4202/app.2008.0306 halsde-00454629 https://hal.science/halsde-00454629 https://hal.science/halsde-00454629/document https://hal.science/halsde-00454629/file/app53-433.pdf doi:10.4202/app.2008.0306 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.4202/app.2008.0306 |
container_title |
Acta Palaeontologica Polonica |
container_volume |
53 |
container_issue |
3 |
container_start_page |
433 |
op_container_end_page |
448 |
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1799484756799258624 |