A Late Cretaceous mammal from Brazil and the first radioisotopic age for the Bauru Group

Autores
Castro, Mariela; Goin, Francisco Javier; Ortiz Jaureguizar, Edgardo; Vieytes, Emma Carolina; Tsukui, Kaori; Ramezani, Jahandar; Batezelli, Alessandro; Marsola, Julio; Langer, Max
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the last three decades, records of tribosphenidan mammals from India, continental Africa, Madagascar and South America have challenged the notion of a strictly Laurasian distribution of the group during the Cretaceous. Here, we describe a lower premolar from the Late Cretaceous Adamantina Formation, SãoPaulo State, Brazil. It differs from all known fossil mammals, except for a putative eutherian from the same geologic unity and Deccanolestes hislopi, from the Maastrichtian of India. The incompleteness of the material precludes narrowing down its taxonomic attribution further than Tribosphenida, butit is larger than most coeval mammals and shows a thin layer of parallel crystallite enamel. The new taxon helps filling two major gaps in the fossil record: the paucity of Mesozoic mammals in more northern parts of South Americaand of tribosphenidans in the Cretaceous of that continent. In addition, high-precision U-Pb geochronology provided a post-Turonian maximal age (≤87.8 Ma) for the type stratum, which is overlain by the dinosaur-bearing Marília Formation, constraining the age of the Adamantina Formation at the site to late Coniacian?late Maastrichtian. This represents the first radioisotopic age for the Bauru Group, a key stratigraphic unit for the study of Cretaceous tetrapods in Gondwana.
Fil: Castro, Mariela. Universidade de Sao Paulo; Brasil
Fil: Goin, Francisco Javier. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Ortiz Jaureguizar, Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Fil: Vieytes, Emma Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados; Argentina
Fil: Tsukui, Kaori. Massachusetts Institute of Technology; Estados Unidos
Fil: Ramezani, Jahandar. Massachusetts Institute of Technology; Estados Unidos
Fil: Batezelli, Alessandro. Universidade Estadual de Campinas; Brasil
Fil: Marsola, Julio. Universidade de Sao Paulo; Brasil
Fil: Langer, Max. Universidade de Sao Paulo; Brasil
Materia
MAMMAL
LATE CRETACEOUS
BRASIL
BAURU GROUP
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/102435
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A Late Cretaceous mammal from Brazil and the first radioisotopic age for the Bauru GroupCastro, MarielaGoin, Francisco JavierOrtiz Jaureguizar, EdgardoVieytes, Emma CarolinaTsukui, KaoriRamezani, JahandarBatezelli, AlessandroMarsola, JulioLanger, MaxMAMMALLATE CRETACEOUSBRASILBAURU GROUPhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1In the last three decades, records of tribosphenidan mammals from India, continental Africa, Madagascar and South America have challenged the notion of a strictly Laurasian distribution of the group during the Cretaceous. Here, we describe a lower premolar from the Late Cretaceous Adamantina Formation, SãoPaulo State, Brazil. It differs from all known fossil mammals, except for a putative eutherian from the same geologic unity and Deccanolestes hislopi, from the Maastrichtian of India. The incompleteness of the material precludes narrowing down its taxonomic attribution further than Tribosphenida, butit is larger than most coeval mammals and shows a thin layer of parallel crystallite enamel. The new taxon helps filling two major gaps in the fossil record: the paucity of Mesozoic mammals in more northern parts of South Americaand of tribosphenidans in the Cretaceous of that continent. In addition, high-precision U-Pb geochronology provided a post-Turonian maximal age (≤87.8 Ma) for the type stratum, which is overlain by the dinosaur-bearing Marília Formation, constraining the age of the Adamantina Formation at the site to late Coniacian?late Maastrichtian. This represents the first radioisotopic age for the Bauru Group, a key stratigraphic unit for the study of Cretaceous tetrapods in Gondwana.Fil: Castro, Mariela. Universidade de Sao Paulo; BrasilFil: Goin, Francisco Javier. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Ortiz Jaureguizar, Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; ArgentinaFil: Vieytes, Emma Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados; ArgentinaFil: Tsukui, Kaori. Massachusetts Institute of Technology; Estados UnidosFil: Ramezani, Jahandar. Massachusetts Institute of Technology; Estados UnidosFil: Batezelli, Alessandro. Universidade Estadual de Campinas; BrasilFil: Marsola, Julio. Universidade de Sao Paulo; BrasilFil: Langer, Max. Universidade de Sao Paulo; BrasilThe Royal Society2018-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/102435Castro, Mariela; Goin, Francisco Javier; Ortiz Jaureguizar, Edgardo; Vieytes, Emma Carolina; Tsukui, Kaori; et al.; A Late Cretaceous mammal from Brazil and the first radioisotopic age for the Bauru Group; The Royal Society; Royal Society Open Science; 5; 5; 4-2018; 1-112054-5703CONICET DigitalCONICETenginfo:eu-repo/semantics/reference/doi/https://doi.org/10.6084/m9.figshare.c.4097852.v1info:eu-repo/semantics/altIdentifier/url/http://rsos.royalsocietypublishing.org/content/5/5/180482info:eu-repo/semantics/altIdentifier/doi/10.1098/rsos.180482info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:26:00Zoai:ri.conicet.gov.ar:11336/102435instacron: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:34982025-10-22 11:26:00.806CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A Late Cretaceous mammal from Brazil and the first radioisotopic age for the Bauru Group
title A Late Cretaceous mammal from Brazil and the first radioisotopic age for the Bauru Group
spellingShingle A Late Cretaceous mammal from Brazil and the first radioisotopic age for the Bauru Group
Castro, Mariela
MAMMAL
LATE CRETACEOUS
BRASIL
BAURU GROUP
title_short A Late Cretaceous mammal from Brazil and the first radioisotopic age for the Bauru Group
title_full A Late Cretaceous mammal from Brazil and the first radioisotopic age for the Bauru Group
title_fullStr A Late Cretaceous mammal from Brazil and the first radioisotopic age for the Bauru Group
title_full_unstemmed A Late Cretaceous mammal from Brazil and the first radioisotopic age for the Bauru Group
title_sort A Late Cretaceous mammal from Brazil and the first radioisotopic age for the Bauru Group
dc.creator.none.fl_str_mv Castro, Mariela
Goin, Francisco Javier
Ortiz Jaureguizar, Edgardo
Vieytes, Emma Carolina
Tsukui, Kaori
Ramezani, Jahandar
Batezelli, Alessandro
Marsola, Julio
Langer, Max
author Castro, Mariela
author_facet Castro, Mariela
Goin, Francisco Javier
Ortiz Jaureguizar, Edgardo
Vieytes, Emma Carolina
Tsukui, Kaori
Ramezani, Jahandar
Batezelli, Alessandro
Marsola, Julio
Langer, Max
author_role author
author2 Goin, Francisco Javier
Ortiz Jaureguizar, Edgardo
Vieytes, Emma Carolina
Tsukui, Kaori
Ramezani, Jahandar
Batezelli, Alessandro
Marsola, Julio
Langer, Max
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv MAMMAL
LATE CRETACEOUS
BRASIL
BAURU GROUP
topic MAMMAL
LATE CRETACEOUS
BRASIL
BAURU GROUP
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In the last three decades, records of tribosphenidan mammals from India, continental Africa, Madagascar and South America have challenged the notion of a strictly Laurasian distribution of the group during the Cretaceous. Here, we describe a lower premolar from the Late Cretaceous Adamantina Formation, SãoPaulo State, Brazil. It differs from all known fossil mammals, except for a putative eutherian from the same geologic unity and Deccanolestes hislopi, from the Maastrichtian of India. The incompleteness of the material precludes narrowing down its taxonomic attribution further than Tribosphenida, butit is larger than most coeval mammals and shows a thin layer of parallel crystallite enamel. The new taxon helps filling two major gaps in the fossil record: the paucity of Mesozoic mammals in more northern parts of South Americaand of tribosphenidans in the Cretaceous of that continent. In addition, high-precision U-Pb geochronology provided a post-Turonian maximal age (≤87.8 Ma) for the type stratum, which is overlain by the dinosaur-bearing Marília Formation, constraining the age of the Adamantina Formation at the site to late Coniacian?late Maastrichtian. This represents the first radioisotopic age for the Bauru Group, a key stratigraphic unit for the study of Cretaceous tetrapods in Gondwana.
Fil: Castro, Mariela. Universidade de Sao Paulo; Brasil
Fil: Goin, Francisco Javier. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Ortiz Jaureguizar, Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Fil: Vieytes, Emma Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados; Argentina
Fil: Tsukui, Kaori. Massachusetts Institute of Technology; Estados Unidos
Fil: Ramezani, Jahandar. Massachusetts Institute of Technology; Estados Unidos
Fil: Batezelli, Alessandro. Universidade Estadual de Campinas; Brasil
Fil: Marsola, Julio. Universidade de Sao Paulo; Brasil
Fil: Langer, Max. Universidade de Sao Paulo; Brasil
description In the last three decades, records of tribosphenidan mammals from India, continental Africa, Madagascar and South America have challenged the notion of a strictly Laurasian distribution of the group during the Cretaceous. Here, we describe a lower premolar from the Late Cretaceous Adamantina Formation, SãoPaulo State, Brazil. It differs from all known fossil mammals, except for a putative eutherian from the same geologic unity and Deccanolestes hislopi, from the Maastrichtian of India. The incompleteness of the material precludes narrowing down its taxonomic attribution further than Tribosphenida, butit is larger than most coeval mammals and shows a thin layer of parallel crystallite enamel. The new taxon helps filling two major gaps in the fossil record: the paucity of Mesozoic mammals in more northern parts of South Americaand of tribosphenidans in the Cretaceous of that continent. In addition, high-precision U-Pb geochronology provided a post-Turonian maximal age (≤87.8 Ma) for the type stratum, which is overlain by the dinosaur-bearing Marília Formation, constraining the age of the Adamantina Formation at the site to late Coniacian?late Maastrichtian. This represents the first radioisotopic age for the Bauru Group, a key stratigraphic unit for the study of Cretaceous tetrapods in Gondwana.
publishDate 2018
dc.date.none.fl_str_mv 2018-04
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/11336/102435
Castro, Mariela; Goin, Francisco Javier; Ortiz Jaureguizar, Edgardo; Vieytes, Emma Carolina; Tsukui, Kaori; et al.; A Late Cretaceous mammal from Brazil and the first radioisotopic age for the Bauru Group; The Royal Society; Royal Society Open Science; 5; 5; 4-2018; 1-11
2054-5703
CONICET Digital
CONICET
url http://hdl.handle.net/11336/102435
identifier_str_mv Castro, Mariela; Goin, Francisco Javier; Ortiz Jaureguizar, Edgardo; Vieytes, Emma Carolina; Tsukui, Kaori; et al.; A Late Cretaceous mammal from Brazil and the first radioisotopic age for the Bauru Group; The Royal Society; Royal Society Open Science; 5; 5; 4-2018; 1-11
2054-5703
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/reference/doi/https://doi.org/10.6084/m9.figshare.c.4097852.v1
info:eu-repo/semantics/altIdentifier/url/http://rsos.royalsocietypublishing.org/content/5/5/180482
info:eu-repo/semantics/altIdentifier/doi/10.1098/rsos.180482
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv The Royal Society
publisher.none.fl_str_mv The Royal Society
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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