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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/102435
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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 Técnicas2025-09-29T09:56:47Zoai: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:34982025-09-29 09:56:48.195CONICET 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/ |
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application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
The Royal Society |
publisher.none.fl_str_mv |
The Royal Society |
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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 |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613703462289408 |
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13.070432 |