Gigantic mysticete predators roamed the Eocene Southern Ocean

Autores
Marx, Felix G.; Buono, Mónica Romina; Evans, Alistair R.; Fordyce, Robert Ewan; Reguero, Marcelo Alfredo; Hocking, David P.
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Modern baleen whales (Mysticeti), the largest animals on Earth, arose from small ancestors around 36.4 million years ago (Ma). True gigantism is thought to have arisen late in mysticete history, with species exceeding 10 m unknown prior to 8 Ma. This view is challenged by new fossils from Seymour Island (Isla Marambio), Antarctica, which suggest that enormous whales once roamed the Southern Ocean during the Late Eocene (c. 34 Ma). The new material hints at an unknown species of the archaic mysticete Llanocetus with a total body length of up to 12 m. The latter is comparable to that of extant Omura´s whales (Balaenoptera omurai Wada et al. 2003), and suggests that gigantism has been a re-occurring feature of mysticetes since their very origin. Functional analysis including sharpness and dental wear implies an at least partly raptorial feeding strategy, starkly contrasting with the filtering habit of living whales. The new material markedly expands the size range of archaic mysticetes, and demonstrates that whales achieved considerable disparity shortly after their origin.
Fil: Marx, Felix G.. Royal Belgian Institute of Natural Sciences. Directorate Earth and History of Life; Bélgica. Monash University; Australia. Museums Victoria. Geosciences; Australia
Fil: Buono, Mónica Romina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; Argentina
Fil: Evans, Alistair R.. Monash University; Australia. Museums Victoria. Geosciences; Australia
Fil: Fordyce, Robert Ewan. University of Otago; Nueva Zelanda. National Museum of Natural History; Estados Unidos
Fil: Reguero, Marcelo Alfredo. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: Hocking, David P.. Monash University; Australia. Museums Victoria. Geosciences; Australia
Materia
ANTARCTICA
BALEEN WHALE
LLANOCETUS
PALAEOGENE
RAPTORIAL
SUCTION FEEDING
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/110008
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Gigantic mysticete predators roamed the Eocene Southern OceanMarx, Felix G.Buono, Mónica RominaEvans, Alistair R.Fordyce, Robert EwanReguero, Marcelo AlfredoHocking, David P.ANTARCTICABALEEN WHALELLANOCETUSPALAEOGENERAPTORIALSUCTION FEEDINGhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Modern baleen whales (Mysticeti), the largest animals on Earth, arose from small ancestors around 36.4 million years ago (Ma). True gigantism is thought to have arisen late in mysticete history, with species exceeding 10 m unknown prior to 8 Ma. This view is challenged by new fossils from Seymour Island (Isla Marambio), Antarctica, which suggest that enormous whales once roamed the Southern Ocean during the Late Eocene (c. 34 Ma). The new material hints at an unknown species of the archaic mysticete Llanocetus with a total body length of up to 12 m. The latter is comparable to that of extant Omura´s whales (Balaenoptera omurai Wada et al. 2003), and suggests that gigantism has been a re-occurring feature of mysticetes since their very origin. Functional analysis including sharpness and dental wear implies an at least partly raptorial feeding strategy, starkly contrasting with the filtering habit of living whales. The new material markedly expands the size range of archaic mysticetes, and demonstrates that whales achieved considerable disparity shortly after their origin.Fil: Marx, Felix G.. Royal Belgian Institute of Natural Sciences. Directorate Earth and History of Life; Bélgica. Monash University; Australia. Museums Victoria. Geosciences; AustraliaFil: Buono, Mónica Romina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; ArgentinaFil: Evans, Alistair R.. Monash University; Australia. Museums Victoria. Geosciences; AustraliaFil: Fordyce, Robert Ewan. University of Otago; Nueva Zelanda. National Museum of Natural History; Estados UnidosFil: Reguero, Marcelo Alfredo. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; ArgentinaFil: Hocking, David P.. Monash University; Australia. Museums Victoria. Geosciences; AustraliaCambridge University Press2019-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/110008Marx, Felix G.; Buono, Mónica Romina; Evans, Alistair R.; Fordyce, Robert Ewan; Reguero, Marcelo Alfredo; et al.; Gigantic mysticete predators roamed the Eocene Southern Ocean; Cambridge University Press; Antarctic Science; 31; 2; 4-2019; 98-1040954-10201365-2079CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1017/S095410201800055Xinfo:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/antarctic-science/article/gigantic-mysticete-predators-roamed-the-eocene-southern-ocean/0EEFC32753A8909BC4E7C134F5AEA6AEinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:43:45Zoai:ri.conicet.gov.ar:11336/110008instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:43:45.649CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Gigantic mysticete predators roamed the Eocene Southern Ocean
title Gigantic mysticete predators roamed the Eocene Southern Ocean
spellingShingle Gigantic mysticete predators roamed the Eocene Southern Ocean
Marx, Felix G.
ANTARCTICA
BALEEN WHALE
LLANOCETUS
PALAEOGENE
RAPTORIAL
SUCTION FEEDING
title_short Gigantic mysticete predators roamed the Eocene Southern Ocean
title_full Gigantic mysticete predators roamed the Eocene Southern Ocean
title_fullStr Gigantic mysticete predators roamed the Eocene Southern Ocean
title_full_unstemmed Gigantic mysticete predators roamed the Eocene Southern Ocean
title_sort Gigantic mysticete predators roamed the Eocene Southern Ocean
dc.creator.none.fl_str_mv Marx, Felix G.
Buono, Mónica Romina
Evans, Alistair R.
Fordyce, Robert Ewan
Reguero, Marcelo Alfredo
Hocking, David P.
author Marx, Felix G.
author_facet Marx, Felix G.
Buono, Mónica Romina
Evans, Alistair R.
Fordyce, Robert Ewan
Reguero, Marcelo Alfredo
Hocking, David P.
author_role author
author2 Buono, Mónica Romina
Evans, Alistair R.
Fordyce, Robert Ewan
Reguero, Marcelo Alfredo
Hocking, David P.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv ANTARCTICA
BALEEN WHALE
LLANOCETUS
PALAEOGENE
RAPTORIAL
SUCTION FEEDING
topic ANTARCTICA
BALEEN WHALE
LLANOCETUS
PALAEOGENE
RAPTORIAL
SUCTION FEEDING
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Modern baleen whales (Mysticeti), the largest animals on Earth, arose from small ancestors around 36.4 million years ago (Ma). True gigantism is thought to have arisen late in mysticete history, with species exceeding 10 m unknown prior to 8 Ma. This view is challenged by new fossils from Seymour Island (Isla Marambio), Antarctica, which suggest that enormous whales once roamed the Southern Ocean during the Late Eocene (c. 34 Ma). The new material hints at an unknown species of the archaic mysticete Llanocetus with a total body length of up to 12 m. The latter is comparable to that of extant Omura´s whales (Balaenoptera omurai Wada et al. 2003), and suggests that gigantism has been a re-occurring feature of mysticetes since their very origin. Functional analysis including sharpness and dental wear implies an at least partly raptorial feeding strategy, starkly contrasting with the filtering habit of living whales. The new material markedly expands the size range of archaic mysticetes, and demonstrates that whales achieved considerable disparity shortly after their origin.
Fil: Marx, Felix G.. Royal Belgian Institute of Natural Sciences. Directorate Earth and History of Life; Bélgica. Monash University; Australia. Museums Victoria. Geosciences; Australia
Fil: Buono, Mónica Romina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; Argentina
Fil: Evans, Alistair R.. Monash University; Australia. Museums Victoria. Geosciences; Australia
Fil: Fordyce, Robert Ewan. University of Otago; Nueva Zelanda. National Museum of Natural History; Estados Unidos
Fil: Reguero, Marcelo Alfredo. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: Hocking, David P.. Monash University; Australia. Museums Victoria. Geosciences; Australia
description Modern baleen whales (Mysticeti), the largest animals on Earth, arose from small ancestors around 36.4 million years ago (Ma). True gigantism is thought to have arisen late in mysticete history, with species exceeding 10 m unknown prior to 8 Ma. This view is challenged by new fossils from Seymour Island (Isla Marambio), Antarctica, which suggest that enormous whales once roamed the Southern Ocean during the Late Eocene (c. 34 Ma). The new material hints at an unknown species of the archaic mysticete Llanocetus with a total body length of up to 12 m. The latter is comparable to that of extant Omura´s whales (Balaenoptera omurai Wada et al. 2003), and suggests that gigantism has been a re-occurring feature of mysticetes since their very origin. Functional analysis including sharpness and dental wear implies an at least partly raptorial feeding strategy, starkly contrasting with the filtering habit of living whales. The new material markedly expands the size range of archaic mysticetes, and demonstrates that whales achieved considerable disparity shortly after their origin.
publishDate 2019
dc.date.none.fl_str_mv 2019-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/110008
Marx, Felix G.; Buono, Mónica Romina; Evans, Alistair R.; Fordyce, Robert Ewan; Reguero, Marcelo Alfredo; et al.; Gigantic mysticete predators roamed the Eocene Southern Ocean; Cambridge University Press; Antarctic Science; 31; 2; 4-2019; 98-104
0954-1020
1365-2079
CONICET Digital
CONICET
url http://hdl.handle.net/11336/110008
identifier_str_mv Marx, Felix G.; Buono, Mónica Romina; Evans, Alistair R.; Fordyce, Robert Ewan; Reguero, Marcelo Alfredo; et al.; Gigantic mysticete predators roamed the Eocene Southern Ocean; Cambridge University Press; Antarctic Science; 31; 2; 4-2019; 98-104
0954-1020
1365-2079
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1017/S095410201800055X
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/antarctic-science/article/gigantic-mysticete-predators-roamed-the-eocene-southern-ocean/0EEFC32753A8909BC4E7C134F5AEA6AE
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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