New evidence of putative Unenlagiinae (Deinonychosauria, Theropoda) in the São Luís-Grajaú Basin, Albian– Cenomanian, State of Maranhão, Brazil.

Detalhes bibliográficos
Autor(a) principal: Letizio, Luiz Antonio [UNESP]
Data de Publicação: 2022
Outros Autores: Bertini, Reinaldo J. [UNESP], Medeiros, Manuel Alfredo
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.4072/rbp.2022.2.05
http://hdl.handle.net/11449/241350
Resumo: We studied an assemblage of teeth from Laje do Coringa, São Luís-Grajaú Basin, Alcântara Formation, State of Maranhão, Brazil. The collection sites are dated as Albian–Cenomanian. Ten teeth were submitted to morphological analysis in Scanning Electron Microscopy, with the goal of identifying materials likely associated with unenlagiine theropod dinosaurs. Three specimens were identified as putative members of the group based on: (a) strong labial-lingual flattening of the crown, (b) absence of longitudinal grooves, (c) dimensions compatible with previously described Unenlagiinae, (d) “ziphodont” morphology lightly to the mesial portion, (e) basal section with two distinguishable borders, (f) complete absence of serrations. These teeth expand chronological and geographical distributions of Unenlagiinae dinosaurs.
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spelling New evidence of putative Unenlagiinae (Deinonychosauria, Theropoda) in the São Luís-Grajaú Basin, Albian– Cenomanian, State of Maranhão, Brazil.NOVAS EVIDÊNCIAS DE POSSÍVEIS UNENLAGIINAE (DEINONYCHOSAURIA, THEROPODA) NA BACIA SÃO LUÍS-GRAJAÚ, ALBIANO–CENOMANIANO DO ESTADO DO MARANHÃO, BRASILCretaceousDinosauriaManiraptoriformesteethWe studied an assemblage of teeth from Laje do Coringa, São Luís-Grajaú Basin, Alcântara Formation, State of Maranhão, Brazil. The collection sites are dated as Albian–Cenomanian. Ten teeth were submitted to morphological analysis in Scanning Electron Microscopy, with the goal of identifying materials likely associated with unenlagiine theropod dinosaurs. Three specimens were identified as putative members of the group based on: (a) strong labial-lingual flattening of the crown, (b) absence of longitudinal grooves, (c) dimensions compatible with previously described Unenlagiinae, (d) “ziphodont” morphology lightly to the mesial portion, (e) basal section with two distinguishable borders, (f) complete absence of serrations. These teeth expand chronological and geographical distributions of Unenlagiinae dinosaurs.Pós-Graduação em Geociências e Meio Ambiente Instituto em Geociências e Ciências Exatas Universidade Estadual Paulista UNESP, Campus Rio Claro. Av. 24 A / 1515, SPNúcleo de Evolução e Paleobiologia de Vertebrados Departamento em Geologia Instituto em Geociências e Ciências Exatas Universidade Estadual Paulista UNESP, Campus Rio Claro. Av. 24 A / 1515, SPDepartamento de Biologia Centro de Ciências Biológicas e da Saúde Universidade Federal do Maranhão UFMA, Av. dos Portugueses, 1966, MAPós-Graduação em Geociências e Meio Ambiente Instituto em Geociências e Ciências Exatas Universidade Estadual Paulista UNESP, Campus Rio Claro. Av. 24 A / 1515, SPNúcleo de Evolução e Paleobiologia de Vertebrados Departamento em Geologia Instituto em Geociências e Ciências Exatas Universidade Estadual Paulista UNESP, Campus Rio Claro. Av. 24 A / 1515, SPUniversidade Estadual Paulista (UNESP)UFMALetizio, Luiz Antonio [UNESP]Bertini, Reinaldo J. [UNESP]Medeiros, Manuel Alfredo2023-03-01T20:58:02Z2023-03-01T20:58:02Z2022-07-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article157-164http://dx.doi.org/10.4072/rbp.2022.2.05Revista Brasileira de Paleontologia, v. 25, n. 2, p. 157-164, 2022.1519-7530http://hdl.handle.net/11449/24135010.4072/rbp.2022.2.052-s2.0-85134337445Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Paleontologiainfo:eu-repo/semantics/openAccess2023-03-01T20:58:02Zoai:repositorio.unesp.br:11449/241350Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:32:54.921386Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv New evidence of putative Unenlagiinae (Deinonychosauria, Theropoda) in the São Luís-Grajaú Basin, Albian– Cenomanian, State of Maranhão, Brazil.
NOVAS EVIDÊNCIAS DE POSSÍVEIS UNENLAGIINAE (DEINONYCHOSAURIA, THEROPODA) NA BACIA SÃO LUÍS-GRAJAÚ, ALBIANO–CENOMANIANO DO ESTADO DO MARANHÃO, BRASIL
title New evidence of putative Unenlagiinae (Deinonychosauria, Theropoda) in the São Luís-Grajaú Basin, Albian– Cenomanian, State of Maranhão, Brazil.
spellingShingle New evidence of putative Unenlagiinae (Deinonychosauria, Theropoda) in the São Luís-Grajaú Basin, Albian– Cenomanian, State of Maranhão, Brazil.
Letizio, Luiz Antonio [UNESP]
Cretaceous
Dinosauria
Maniraptoriformes
teeth
title_short New evidence of putative Unenlagiinae (Deinonychosauria, Theropoda) in the São Luís-Grajaú Basin, Albian– Cenomanian, State of Maranhão, Brazil.
title_full New evidence of putative Unenlagiinae (Deinonychosauria, Theropoda) in the São Luís-Grajaú Basin, Albian– Cenomanian, State of Maranhão, Brazil.
title_fullStr New evidence of putative Unenlagiinae (Deinonychosauria, Theropoda) in the São Luís-Grajaú Basin, Albian– Cenomanian, State of Maranhão, Brazil.
title_full_unstemmed New evidence of putative Unenlagiinae (Deinonychosauria, Theropoda) in the São Luís-Grajaú Basin, Albian– Cenomanian, State of Maranhão, Brazil.
title_sort New evidence of putative Unenlagiinae (Deinonychosauria, Theropoda) in the São Luís-Grajaú Basin, Albian– Cenomanian, State of Maranhão, Brazil.
author Letizio, Luiz Antonio [UNESP]
author_facet Letizio, Luiz Antonio [UNESP]
Bertini, Reinaldo J. [UNESP]
Medeiros, Manuel Alfredo
author_role author
author2 Bertini, Reinaldo J. [UNESP]
Medeiros, Manuel Alfredo
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
UFMA
dc.contributor.author.fl_str_mv Letizio, Luiz Antonio [UNESP]
Bertini, Reinaldo J. [UNESP]
Medeiros, Manuel Alfredo
dc.subject.por.fl_str_mv Cretaceous
Dinosauria
Maniraptoriformes
teeth
topic Cretaceous
Dinosauria
Maniraptoriformes
teeth
description We studied an assemblage of teeth from Laje do Coringa, São Luís-Grajaú Basin, Alcântara Formation, State of Maranhão, Brazil. The collection sites are dated as Albian–Cenomanian. Ten teeth were submitted to morphological analysis in Scanning Electron Microscopy, with the goal of identifying materials likely associated with unenlagiine theropod dinosaurs. Three specimens were identified as putative members of the group based on: (a) strong labial-lingual flattening of the crown, (b) absence of longitudinal grooves, (c) dimensions compatible with previously described Unenlagiinae, (d) “ziphodont” morphology lightly to the mesial portion, (e) basal section with two distinguishable borders, (f) complete absence of serrations. These teeth expand chronological and geographical distributions of Unenlagiinae dinosaurs.
publishDate 2022
dc.date.none.fl_str_mv 2022-07-16
2023-03-01T20:58:02Z
2023-03-01T20:58:02Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.4072/rbp.2022.2.05
Revista Brasileira de Paleontologia, v. 25, n. 2, p. 157-164, 2022.
1519-7530
http://hdl.handle.net/11449/241350
10.4072/rbp.2022.2.05
2-s2.0-85134337445
url http://dx.doi.org/10.4072/rbp.2022.2.05
http://hdl.handle.net/11449/241350
identifier_str_mv Revista Brasileira de Paleontologia, v. 25, n. 2, p. 157-164, 2022.
1519-7530
10.4072/rbp.2022.2.05
2-s2.0-85134337445
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Revista Brasileira de Paleontologia
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 157-164
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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