A Miocene relative of the Ganges River dolphin from the amazonian basin
- Autores
- Bianucci, Giovanni; Lambert, Oliver; Salas Gismondi, Rodolfo; Tejada, Julia; Pujos, François Roger Francis; Urbina, Mario; Antoine, Pierre Olivier
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Today, only three odontocete (toothed whales) genera are restricted to freshwater habitats: the Amazon River dolphin (Inia geoffrensis), the possibly extinct Yangtze River dolphin (Lipotes vexillifer) (Turvey et al., 2007), and the Ganges and Indus river dolphins (Platanista gangetica). Even if their phylogenetic relationships are still debated, Inia, Lipotes, and Platanista are now recognized as belonging to different families (Iniidae, Lipotidae, and Platanistidae, respectively) on the basis of morphological and molecular characters (Muizon, 1988; Cassens et al., 2000; Hamilton et al., 2001; Nikaido et al., 2001; McGowen et al., 2009; Geisler et al., 2011, 2012). Considering their geographic distribution and the discovery of some fossil relatives in marine deposits, for example, the iniid Meherrinia, the lipotid Parapontoporia, and the platanistids Prepomatodelphis, Pomatodelphis, and Zarachis, the current habitat of freshwater dolphins must be explained by independent episodes of colonization of freshwater environments (Cassens et al., 2000; Geisler et al., 2011, 2012). Several fragmentary fossil specimens, isolated teeth or jaw fragments, have been tentatively attributed in the past to unknown species that are thought to be closely related to extant river dolphin genera (e.g., Zhou et al., 1984; review in Muizon, 1988), but until now there were no diagnostic fossil remains that could provide clues about the early steps of these colonization episodes. More specifically, the fossil record of Platanistinae, the subfamily including the extant Platanista, is scarce, with only one tentative record from early Miocene, coastal deposits of Oregon, north Pacific. This specimen consists of an isolated mandibular symphyseal region that is transversely compressed (Barnes, 2006). Even if we consider this attribution as valid, a long ghost lineage characterizes most of the history of the Platanistinae, the latter having diverged from the extinct subfamily Pomatodelphininae since at least the latest early Miocene (Barnes, 2002, 2006). We present here a new fossil platanistine specimen: a periotic from the middle Miocene of Peruvian Amazonia. This highly diagnostic ear bone partly fills the ghost lineage mentioned above and provides insights on the shifts to freshwater environments by various odontocete clades, a phenomenon probably underestimated due to the lack of fossils from the freshwater sedimentary record, and probably not just limited to extant clades of freshwater odontocetes (Fordyce, 1983).
Fil: Bianucci, Giovanni. Universita di Pisa. Dipartimento di Scienze della Terra; Italia
Fil: Lambert, Oliver. Institut royal des sciences naturelles de Belgique. Departement de paleontologie; Bélgica
Fil: Salas Gismondi, Rodolfo. Universidad Nacional Mayor de San Marcos. Museo de historia natural. Paleontología de Vertebrados; Perú
Fil: Tejada, Julia. Universidad Nacional Mayor de San Marcos. Museo de historia natural. Paleontología de Vertebrados; Perú. Institut Français d’etudes Andines; Perú
Fil: Pujos, François Roger Francis. Consejo Nacional de Investigaciones Científicas y Técnicas. Científico Tecnológico Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Institut Français d’etudes Andines; Perú
Fil: Urbina, Mario. Universidad Nacional Mayor de San Marcos. Museo de historia natural. Paleontología de Vertebrados; Perú
Fil: Antoine, Pierre Olivier. Universite Montpellier Ii; Francia - Materia
-
Systematic
Dolphin
Peruvian Amazon
Miocene - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/2861
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A Miocene relative of the Ganges River dolphin from the amazonian basinBianucci, GiovanniLambert, OliverSalas Gismondi, RodolfoTejada, JuliaPujos, François Roger FrancisUrbina, MarioAntoine, Pierre OlivierSystematicDolphinPeruvian AmazonMiocenehttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Today, only three odontocete (toothed whales) genera are restricted to freshwater habitats: the Amazon River dolphin (Inia geoffrensis), the possibly extinct Yangtze River dolphin (Lipotes vexillifer) (Turvey et al., 2007), and the Ganges and Indus river dolphins (Platanista gangetica). Even if their phylogenetic relationships are still debated, Inia, Lipotes, and Platanista are now recognized as belonging to different families (Iniidae, Lipotidae, and Platanistidae, respectively) on the basis of morphological and molecular characters (Muizon, 1988; Cassens et al., 2000; Hamilton et al., 2001; Nikaido et al., 2001; McGowen et al., 2009; Geisler et al., 2011, 2012). Considering their geographic distribution and the discovery of some fossil relatives in marine deposits, for example, the iniid Meherrinia, the lipotid Parapontoporia, and the platanistids Prepomatodelphis, Pomatodelphis, and Zarachis, the current habitat of freshwater dolphins must be explained by independent episodes of colonization of freshwater environments (Cassens et al., 2000; Geisler et al., 2011, 2012). Several fragmentary fossil specimens, isolated teeth or jaw fragments, have been tentatively attributed in the past to unknown species that are thought to be closely related to extant river dolphin genera (e.g., Zhou et al., 1984; review in Muizon, 1988), but until now there were no diagnostic fossil remains that could provide clues about the early steps of these colonization episodes. More specifically, the fossil record of Platanistinae, the subfamily including the extant Platanista, is scarce, with only one tentative record from early Miocene, coastal deposits of Oregon, north Pacific. This specimen consists of an isolated mandibular symphyseal region that is transversely compressed (Barnes, 2006). Even if we consider this attribution as valid, a long ghost lineage characterizes most of the history of the Platanistinae, the latter having diverged from the extinct subfamily Pomatodelphininae since at least the latest early Miocene (Barnes, 2002, 2006). We present here a new fossil platanistine specimen: a periotic from the middle Miocene of Peruvian Amazonia. This highly diagnostic ear bone partly fills the ghost lineage mentioned above and provides insights on the shifts to freshwater environments by various odontocete clades, a phenomenon probably underestimated due to the lack of fossils from the freshwater sedimentary record, and probably not just limited to extant clades of freshwater odontocetes (Fordyce, 1983).Fil: Bianucci, Giovanni. Universita di Pisa. Dipartimento di Scienze della Terra; ItaliaFil: Lambert, Oliver. Institut royal des sciences naturelles de Belgique. Departement de paleontologie; BélgicaFil: Salas Gismondi, Rodolfo. Universidad Nacional Mayor de San Marcos. Museo de historia natural. Paleontología de Vertebrados; PerúFil: Tejada, Julia. Universidad Nacional Mayor de San Marcos. Museo de historia natural. Paleontología de Vertebrados; Perú. Institut Français d’etudes Andines; PerúFil: Pujos, François Roger Francis. Consejo Nacional de Investigaciones Científicas y Técnicas. Científico Tecnológico Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Institut Français d’etudes Andines; PerúFil: Urbina, Mario. Universidad Nacional Mayor de San Marcos. Museo de historia natural. Paleontología de Vertebrados; PerúFil: Antoine, Pierre Olivier. Universite Montpellier Ii; FranciaSoc Vertebrate Paleontology2013-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/2861Bianucci, Giovanni; Lambert, Oliver; Salas Gismondi, Rodolfo; Tejada, Julia; Pujos, François Roger Francis; et al.; A Miocene relative of the Ganges River dolphin from the amazonian basin; Soc Vertebrate Paleontology; Journal Of Vertebrate Paleontology; 33; 3; 5-2013; 741-7450272-4634enginfo:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/02724634.2013.734888info:eu-repo/semantics/altIdentifier/doi/10.1080/02724634.2013.734888info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:32:52Zoai:ri.conicet.gov.ar:11336/2861instacron: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:34982025-09-29 09:32:52.894CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
A Miocene relative of the Ganges River dolphin from the amazonian basin |
title |
A Miocene relative of the Ganges River dolphin from the amazonian basin |
spellingShingle |
A Miocene relative of the Ganges River dolphin from the amazonian basin Bianucci, Giovanni Systematic Dolphin Peruvian Amazon Miocene |
title_short |
A Miocene relative of the Ganges River dolphin from the amazonian basin |
title_full |
A Miocene relative of the Ganges River dolphin from the amazonian basin |
title_fullStr |
A Miocene relative of the Ganges River dolphin from the amazonian basin |
title_full_unstemmed |
A Miocene relative of the Ganges River dolphin from the amazonian basin |
title_sort |
A Miocene relative of the Ganges River dolphin from the amazonian basin |
dc.creator.none.fl_str_mv |
Bianucci, Giovanni Lambert, Oliver Salas Gismondi, Rodolfo Tejada, Julia Pujos, François Roger Francis Urbina, Mario Antoine, Pierre Olivier |
author |
Bianucci, Giovanni |
author_facet |
Bianucci, Giovanni Lambert, Oliver Salas Gismondi, Rodolfo Tejada, Julia Pujos, François Roger Francis Urbina, Mario Antoine, Pierre Olivier |
author_role |
author |
author2 |
Lambert, Oliver Salas Gismondi, Rodolfo Tejada, Julia Pujos, François Roger Francis Urbina, Mario Antoine, Pierre Olivier |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
Systematic Dolphin Peruvian Amazon Miocene |
topic |
Systematic Dolphin Peruvian Amazon Miocene |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Today, only three odontocete (toothed whales) genera are restricted to freshwater habitats: the Amazon River dolphin (Inia geoffrensis), the possibly extinct Yangtze River dolphin (Lipotes vexillifer) (Turvey et al., 2007), and the Ganges and Indus river dolphins (Platanista gangetica). Even if their phylogenetic relationships are still debated, Inia, Lipotes, and Platanista are now recognized as belonging to different families (Iniidae, Lipotidae, and Platanistidae, respectively) on the basis of morphological and molecular characters (Muizon, 1988; Cassens et al., 2000; Hamilton et al., 2001; Nikaido et al., 2001; McGowen et al., 2009; Geisler et al., 2011, 2012). Considering their geographic distribution and the discovery of some fossil relatives in marine deposits, for example, the iniid Meherrinia, the lipotid Parapontoporia, and the platanistids Prepomatodelphis, Pomatodelphis, and Zarachis, the current habitat of freshwater dolphins must be explained by independent episodes of colonization of freshwater environments (Cassens et al., 2000; Geisler et al., 2011, 2012). Several fragmentary fossil specimens, isolated teeth or jaw fragments, have been tentatively attributed in the past to unknown species that are thought to be closely related to extant river dolphin genera (e.g., Zhou et al., 1984; review in Muizon, 1988), but until now there were no diagnostic fossil remains that could provide clues about the early steps of these colonization episodes. More specifically, the fossil record of Platanistinae, the subfamily including the extant Platanista, is scarce, with only one tentative record from early Miocene, coastal deposits of Oregon, north Pacific. This specimen consists of an isolated mandibular symphyseal region that is transversely compressed (Barnes, 2006). Even if we consider this attribution as valid, a long ghost lineage characterizes most of the history of the Platanistinae, the latter having diverged from the extinct subfamily Pomatodelphininae since at least the latest early Miocene (Barnes, 2002, 2006). We present here a new fossil platanistine specimen: a periotic from the middle Miocene of Peruvian Amazonia. This highly diagnostic ear bone partly fills the ghost lineage mentioned above and provides insights on the shifts to freshwater environments by various odontocete clades, a phenomenon probably underestimated due to the lack of fossils from the freshwater sedimentary record, and probably not just limited to extant clades of freshwater odontocetes (Fordyce, 1983). Fil: Bianucci, Giovanni. Universita di Pisa. Dipartimento di Scienze della Terra; Italia Fil: Lambert, Oliver. Institut royal des sciences naturelles de Belgique. Departement de paleontologie; Bélgica Fil: Salas Gismondi, Rodolfo. Universidad Nacional Mayor de San Marcos. Museo de historia natural. Paleontología de Vertebrados; Perú Fil: Tejada, Julia. Universidad Nacional Mayor de San Marcos. Museo de historia natural. Paleontología de Vertebrados; Perú. Institut Français d’etudes Andines; Perú Fil: Pujos, François Roger Francis. Consejo Nacional de Investigaciones Científicas y Técnicas. Científico Tecnológico Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Institut Français d’etudes Andines; Perú Fil: Urbina, Mario. Universidad Nacional Mayor de San Marcos. Museo de historia natural. Paleontología de Vertebrados; Perú Fil: Antoine, Pierre Olivier. Universite Montpellier Ii; Francia |
description |
Today, only three odontocete (toothed whales) genera are restricted to freshwater habitats: the Amazon River dolphin (Inia geoffrensis), the possibly extinct Yangtze River dolphin (Lipotes vexillifer) (Turvey et al., 2007), and the Ganges and Indus river dolphins (Platanista gangetica). Even if their phylogenetic relationships are still debated, Inia, Lipotes, and Platanista are now recognized as belonging to different families (Iniidae, Lipotidae, and Platanistidae, respectively) on the basis of morphological and molecular characters (Muizon, 1988; Cassens et al., 2000; Hamilton et al., 2001; Nikaido et al., 2001; McGowen et al., 2009; Geisler et al., 2011, 2012). Considering their geographic distribution and the discovery of some fossil relatives in marine deposits, for example, the iniid Meherrinia, the lipotid Parapontoporia, and the platanistids Prepomatodelphis, Pomatodelphis, and Zarachis, the current habitat of freshwater dolphins must be explained by independent episodes of colonization of freshwater environments (Cassens et al., 2000; Geisler et al., 2011, 2012). Several fragmentary fossil specimens, isolated teeth or jaw fragments, have been tentatively attributed in the past to unknown species that are thought to be closely related to extant river dolphin genera (e.g., Zhou et al., 1984; review in Muizon, 1988), but until now there were no diagnostic fossil remains that could provide clues about the early steps of these colonization episodes. More specifically, the fossil record of Platanistinae, the subfamily including the extant Platanista, is scarce, with only one tentative record from early Miocene, coastal deposits of Oregon, north Pacific. This specimen consists of an isolated mandibular symphyseal region that is transversely compressed (Barnes, 2006). Even if we consider this attribution as valid, a long ghost lineage characterizes most of the history of the Platanistinae, the latter having diverged from the extinct subfamily Pomatodelphininae since at least the latest early Miocene (Barnes, 2002, 2006). We present here a new fossil platanistine specimen: a periotic from the middle Miocene of Peruvian Amazonia. This highly diagnostic ear bone partly fills the ghost lineage mentioned above and provides insights on the shifts to freshwater environments by various odontocete clades, a phenomenon probably underestimated due to the lack of fossils from the freshwater sedimentary record, and probably not just limited to extant clades of freshwater odontocetes (Fordyce, 1983). |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-05 |
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/11336/2861 Bianucci, Giovanni; Lambert, Oliver; Salas Gismondi, Rodolfo; Tejada, Julia; Pujos, François Roger Francis; et al.; A Miocene relative of the Ganges River dolphin from the amazonian basin; Soc Vertebrate Paleontology; Journal Of Vertebrate Paleontology; 33; 3; 5-2013; 741-745 0272-4634 |
url |
http://hdl.handle.net/11336/2861 |
identifier_str_mv |
Bianucci, Giovanni; Lambert, Oliver; Salas Gismondi, Rodolfo; Tejada, Julia; Pujos, François Roger Francis; et al.; A Miocene relative of the Ganges River dolphin from the amazonian basin; Soc Vertebrate Paleontology; Journal Of Vertebrate Paleontology; 33; 3; 5-2013; 741-745 0272-4634 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/02724634.2013.734888 info:eu-repo/semantics/altIdentifier/doi/10.1080/02724634.2013.734888 |
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 |
Soc Vertebrate Paleontology |
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Soc Vertebrate Paleontology |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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13.070432 |