A spectacularly preserved Early Permian dvinosaur (Temnospondyli) from the Parnaíba Basin (Brazil) illuminates the anatomy , functional morphology, and evolution of aquatic locomot...
- Autores
- Marsicano, Claudia Alicia; Angielczyk, Kenneth; Cisneros, Juan Carlos; Smith, Roger M. H.; Fröbisch, Jörg; Kammerer, Christian; Richter, Martha; Sadleir, Rudyard
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- Since 2011, fieldwork has been conducted in the Early Permian Pedra de Fogo Formation (PFF) of the Parnaíba Basin to study its age, depositional environments, and vertebrate faunas. Discoveries include several articulated skeletons of a new temnospondyl. Phylogenetic analysis indicates that the species is a basal dvinosaur. The Brazilian dvinosaur has a well-ossified skeleton, and is characterized by a large head and ceratobranchials, a robust pectoral girdle, rhachitomous vertebrae with a large notochordal space, and caudal vertebrae and ribs that are modified into a rigid fin-like structure. Small limbs are present, and include ossified stylopodial, zeugopodial, and autopodial elements. The Brazilian species shares an elongate body plan with the Permian and Early Triassic tupilakosaurids, but the structure of the vertebrae differs. The short, disc-like diplospondylous centra of tupilakosaurids resemble the centra of taxa such as whales and ichthyosaurs, which have inflexible vertebral columns. In contrast the vertebrae of the Brazilian species are more elongate and consist of a ring of bone that surrounded the notochord. We interpret this morphology as indicative of a highly flexible vertebral column. Together, these characters suggest a fully aquatic animal that was well adapted to anguilliform swimming. The large head may have been used in combination with powerful body movements for penetrating dense aquatic vegetation, but the limbs were better suited to fine movements and position holding. The phylogenetic placement of the new taxon implies that this general bauplan evolved before the origin of tupilakosaurids; further refinement within the clade included the evolution of a more rigid vertebral column. The PFF dvinosaur is a member of a complex lacustrine ecosystem characterized by several guilds of aquatic secondary consumers, and at least some localities seem to preserve mass death assemblages of the species. The PFF samples a previously unknown biogeographic province in western tropical Gondwana, and other members of the lacustrine community include a new trimerorhachid and the oldest and northernmost occurrence of a rhinesuchid.
Fil: Marsicano, Claudia Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Angielczyk, Kenneth. Field Museum of National History; Estados Unidos
Fil: Cisneros, Juan Carlos. Universidade Federal do Piaui; Brasil
Fil: Smith, Roger M. H.. IZIKO South African Museum; Sudáfrica
Fil: Fröbisch, Jörg. Museum für Naturkunde; Alemania
Fil: Kammerer, Christian. Museum für Naturkunde; Alemania
Fil: Richter, Martha. The Natural History Museum; Reino Unido
Fil: Sadleir, Rudyard. Saint Xavier University; Estados Unidos
74th Annual Meeting of the Society of Vertebrate Paleontology
Berlin
Alemania
Society of Vertebrate Paleontology - Materia
-
Permico
Gondwana
Temnospondily
Paleobiology - 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:11336/219769
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CONICET Digital (CONICET) |
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A spectacularly preserved Early Permian dvinosaur (Temnospondyli) from the Parnaíba Basin (Brazil) illuminates the anatomy , functional morphology, and evolution of aquatic locomotion in the cladeMarsicano, Claudia AliciaAngielczyk, KennethCisneros, Juan CarlosSmith, Roger M. H.Fröbisch, JörgKammerer, ChristianRichter, MarthaSadleir, RudyardPermicoGondwanaTemnospondilyPaleobiologyhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Since 2011, fieldwork has been conducted in the Early Permian Pedra de Fogo Formation (PFF) of the Parnaíba Basin to study its age, depositional environments, and vertebrate faunas. Discoveries include several articulated skeletons of a new temnospondyl. Phylogenetic analysis indicates that the species is a basal dvinosaur. The Brazilian dvinosaur has a well-ossified skeleton, and is characterized by a large head and ceratobranchials, a robust pectoral girdle, rhachitomous vertebrae with a large notochordal space, and caudal vertebrae and ribs that are modified into a rigid fin-like structure. Small limbs are present, and include ossified stylopodial, zeugopodial, and autopodial elements. The Brazilian species shares an elongate body plan with the Permian and Early Triassic tupilakosaurids, but the structure of the vertebrae differs. The short, disc-like diplospondylous centra of tupilakosaurids resemble the centra of taxa such as whales and ichthyosaurs, which have inflexible vertebral columns. In contrast the vertebrae of the Brazilian species are more elongate and consist of a ring of bone that surrounded the notochord. We interpret this morphology as indicative of a highly flexible vertebral column. Together, these characters suggest a fully aquatic animal that was well adapted to anguilliform swimming. The large head may have been used in combination with powerful body movements for penetrating dense aquatic vegetation, but the limbs were better suited to fine movements and position holding. The phylogenetic placement of the new taxon implies that this general bauplan evolved before the origin of tupilakosaurids; further refinement within the clade included the evolution of a more rigid vertebral column. The PFF dvinosaur is a member of a complex lacustrine ecosystem characterized by several guilds of aquatic secondary consumers, and at least some localities seem to preserve mass death assemblages of the species. The PFF samples a previously unknown biogeographic province in western tropical Gondwana, and other members of the lacustrine community include a new trimerorhachid and the oldest and northernmost occurrence of a rhinesuchid.Fil: Marsicano, Claudia Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Angielczyk, Kenneth. Field Museum of National History; Estados UnidosFil: Cisneros, Juan Carlos. Universidade Federal do Piaui; BrasilFil: Smith, Roger M. H.. IZIKO South African Museum; SudáfricaFil: Fröbisch, Jörg. Museum für Naturkunde; AlemaniaFil: Kammerer, Christian. Museum für Naturkunde; AlemaniaFil: Richter, Martha. The Natural History Museum; Reino UnidoFil: Sadleir, Rudyard. Saint Xavier University; Estados Unidos74th Annual Meeting of the Society of Vertebrate PaleontologyBerlinAlemaniaSociety of Vertebrate PaleontologyTaylor & Francis2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/mswordapplication/mswordapplication/pdfhttp://hdl.handle.net/11336/219769A spectacularly preserved Early Permian dvinosaur (Temnospondyli) from the Parnaíba Basin (Brazil) illuminates the anatomy , functional morphology, and evolution of aquatic locomotion in the clade; 74th Annual Meeting of the Society of Vertebrate Paleontology; Berlin; Alemania; 2014; 179-179CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://vertpaleo.org/wp-content/uploads/2021/04/SVP-2014-Program-and-Abstract-Book-10-14-2014.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:46:27Zoai:ri.conicet.gov.ar:11336/219769instacron: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 10:46:27.693CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
A spectacularly preserved Early Permian dvinosaur (Temnospondyli) from the Parnaíba Basin (Brazil) illuminates the anatomy , functional morphology, and evolution of aquatic locomotion in the clade |
title |
A spectacularly preserved Early Permian dvinosaur (Temnospondyli) from the Parnaíba Basin (Brazil) illuminates the anatomy , functional morphology, and evolution of aquatic locomotion in the clade |
spellingShingle |
A spectacularly preserved Early Permian dvinosaur (Temnospondyli) from the Parnaíba Basin (Brazil) illuminates the anatomy , functional morphology, and evolution of aquatic locomotion in the clade Marsicano, Claudia Alicia Permico Gondwana Temnospondily Paleobiology |
title_short |
A spectacularly preserved Early Permian dvinosaur (Temnospondyli) from the Parnaíba Basin (Brazil) illuminates the anatomy , functional morphology, and evolution of aquatic locomotion in the clade |
title_full |
A spectacularly preserved Early Permian dvinosaur (Temnospondyli) from the Parnaíba Basin (Brazil) illuminates the anatomy , functional morphology, and evolution of aquatic locomotion in the clade |
title_fullStr |
A spectacularly preserved Early Permian dvinosaur (Temnospondyli) from the Parnaíba Basin (Brazil) illuminates the anatomy , functional morphology, and evolution of aquatic locomotion in the clade |
title_full_unstemmed |
A spectacularly preserved Early Permian dvinosaur (Temnospondyli) from the Parnaíba Basin (Brazil) illuminates the anatomy , functional morphology, and evolution of aquatic locomotion in the clade |
title_sort |
A spectacularly preserved Early Permian dvinosaur (Temnospondyli) from the Parnaíba Basin (Brazil) illuminates the anatomy , functional morphology, and evolution of aquatic locomotion in the clade |
dc.creator.none.fl_str_mv |
Marsicano, Claudia Alicia Angielczyk, Kenneth Cisneros, Juan Carlos Smith, Roger M. H. Fröbisch, Jörg Kammerer, Christian Richter, Martha Sadleir, Rudyard |
author |
Marsicano, Claudia Alicia |
author_facet |
Marsicano, Claudia Alicia Angielczyk, Kenneth Cisneros, Juan Carlos Smith, Roger M. H. Fröbisch, Jörg Kammerer, Christian Richter, Martha Sadleir, Rudyard |
author_role |
author |
author2 |
Angielczyk, Kenneth Cisneros, Juan Carlos Smith, Roger M. H. Fröbisch, Jörg Kammerer, Christian Richter, Martha Sadleir, Rudyard |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
Permico Gondwana Temnospondily Paleobiology |
topic |
Permico Gondwana Temnospondily Paleobiology |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Since 2011, fieldwork has been conducted in the Early Permian Pedra de Fogo Formation (PFF) of the Parnaíba Basin to study its age, depositional environments, and vertebrate faunas. Discoveries include several articulated skeletons of a new temnospondyl. Phylogenetic analysis indicates that the species is a basal dvinosaur. The Brazilian dvinosaur has a well-ossified skeleton, and is characterized by a large head and ceratobranchials, a robust pectoral girdle, rhachitomous vertebrae with a large notochordal space, and caudal vertebrae and ribs that are modified into a rigid fin-like structure. Small limbs are present, and include ossified stylopodial, zeugopodial, and autopodial elements. The Brazilian species shares an elongate body plan with the Permian and Early Triassic tupilakosaurids, but the structure of the vertebrae differs. The short, disc-like diplospondylous centra of tupilakosaurids resemble the centra of taxa such as whales and ichthyosaurs, which have inflexible vertebral columns. In contrast the vertebrae of the Brazilian species are more elongate and consist of a ring of bone that surrounded the notochord. We interpret this morphology as indicative of a highly flexible vertebral column. Together, these characters suggest a fully aquatic animal that was well adapted to anguilliform swimming. The large head may have been used in combination with powerful body movements for penetrating dense aquatic vegetation, but the limbs were better suited to fine movements and position holding. The phylogenetic placement of the new taxon implies that this general bauplan evolved before the origin of tupilakosaurids; further refinement within the clade included the evolution of a more rigid vertebral column. The PFF dvinosaur is a member of a complex lacustrine ecosystem characterized by several guilds of aquatic secondary consumers, and at least some localities seem to preserve mass death assemblages of the species. The PFF samples a previously unknown biogeographic province in western tropical Gondwana, and other members of the lacustrine community include a new trimerorhachid and the oldest and northernmost occurrence of a rhinesuchid. Fil: Marsicano, Claudia Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina Fil: Angielczyk, Kenneth. Field Museum of National History; Estados Unidos Fil: Cisneros, Juan Carlos. Universidade Federal do Piaui; Brasil Fil: Smith, Roger M. H.. IZIKO South African Museum; Sudáfrica Fil: Fröbisch, Jörg. Museum für Naturkunde; Alemania Fil: Kammerer, Christian. Museum für Naturkunde; Alemania Fil: Richter, Martha. The Natural History Museum; Reino Unido Fil: Sadleir, Rudyard. Saint Xavier University; Estados Unidos 74th Annual Meeting of the Society of Vertebrate Paleontology Berlin Alemania Society of Vertebrate Paleontology |
description |
Since 2011, fieldwork has been conducted in the Early Permian Pedra de Fogo Formation (PFF) of the Parnaíba Basin to study its age, depositional environments, and vertebrate faunas. Discoveries include several articulated skeletons of a new temnospondyl. Phylogenetic analysis indicates that the species is a basal dvinosaur. The Brazilian dvinosaur has a well-ossified skeleton, and is characterized by a large head and ceratobranchials, a robust pectoral girdle, rhachitomous vertebrae with a large notochordal space, and caudal vertebrae and ribs that are modified into a rigid fin-like structure. Small limbs are present, and include ossified stylopodial, zeugopodial, and autopodial elements. The Brazilian species shares an elongate body plan with the Permian and Early Triassic tupilakosaurids, but the structure of the vertebrae differs. The short, disc-like diplospondylous centra of tupilakosaurids resemble the centra of taxa such as whales and ichthyosaurs, which have inflexible vertebral columns. In contrast the vertebrae of the Brazilian species are more elongate and consist of a ring of bone that surrounded the notochord. We interpret this morphology as indicative of a highly flexible vertebral column. Together, these characters suggest a fully aquatic animal that was well adapted to anguilliform swimming. The large head may have been used in combination with powerful body movements for penetrating dense aquatic vegetation, but the limbs were better suited to fine movements and position holding. The phylogenetic placement of the new taxon implies that this general bauplan evolved before the origin of tupilakosaurids; further refinement within the clade included the evolution of a more rigid vertebral column. The PFF dvinosaur is a member of a complex lacustrine ecosystem characterized by several guilds of aquatic secondary consumers, and at least some localities seem to preserve mass death assemblages of the species. The PFF samples a previously unknown biogeographic province in western tropical Gondwana, and other members of the lacustrine community include a new trimerorhachid and the oldest and northernmost occurrence of a rhinesuchid. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Reunión Journal http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
status_str |
publishedVersion |
format |
conferenceObject |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/219769 A spectacularly preserved Early Permian dvinosaur (Temnospondyli) from the Parnaíba Basin (Brazil) illuminates the anatomy , functional morphology, and evolution of aquatic locomotion in the clade; 74th Annual Meeting of the Society of Vertebrate Paleontology; Berlin; Alemania; 2014; 179-179 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/219769 |
identifier_str_mv |
A spectacularly preserved Early Permian dvinosaur (Temnospondyli) from the Parnaíba Basin (Brazil) illuminates the anatomy , functional morphology, and evolution of aquatic locomotion in the clade; 74th Annual Meeting of the Society of Vertebrate Paleontology; Berlin; Alemania; 2014; 179-179 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://vertpaleo.org/wp-content/uploads/2021/04/SVP-2014-Program-and-Abstract-Book-10-14-2014.pdf |
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info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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application/pdf application/msword application/msword application/pdf |
dc.coverage.none.fl_str_mv |
Internacional |
dc.publisher.none.fl_str_mv |
Taylor & Francis |
publisher.none.fl_str_mv |
Taylor & Francis |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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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 |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |