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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/219769

id CONICETDig_57dcdd7bdef0e8df76665dbf940468bf
oai_identifier_str oai:ri.conicet.gov.ar:11336/219769
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling 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
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/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
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
_version_ 1844614506124148736
score 13.070432