A new species of Caipirasuchus (Notosuchia, Sphagesauridae) from the Late Cretaceous of Brazil and the evolutionary history of Sphagesauria

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dc.contributor.authorRuiz, Juan V. [UNESP]
dc.contributor.authorBronzati, Mario
dc.contributor.authorFerreira, Gabriel S.
dc.contributor.authorMartins, Kawan C. [UNESP]
dc.contributor.authorQueiroz, Marcos V. [UNESP]
dc.contributor.authorLanger, Max C.
dc.contributor.authorMontefeltro, Felipe C. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2021-06-25T10:59:21Z
dc.date.available2021-06-25T10:59:21Z
dc.date.issued2021-01-01
dc.description.abstractSphagesauridae is a group of notosuchian crocodyliforms from the Late Cretaceous of South America characterized by highly specialized jaws and dentition. Here, we describe a new sphagesaurid from the Santo Anastácio Formation (Caiuá Group, Bauru Basin), south-east Brazil. The specimen is composed of a partial palate, neurocranium, mandible and fragmentary teeth. It represents a new species that can be assigned to Caipirasuchus due to the presence of a lateromedially narrow and anteroposteriorly long mandibular symphyseal region, apicobasal ridges on the posterior teeth, a diastema between D5 and D6, and a linear row of large neurovascular foramina on the lateral surface of the dentary. It differs from previously described Caipirasuchus species based on a ventrolaterally inclined surface of the dentaries posterior to the tooth row, a connection between the anteroventral margin of the external mandibular fenestra and the floor of the Meckelian canal, and the anterior process of the angular forming a ‘V’-shaped suture in its contact with the splenial. The results of a phylogenetic analysis of notosuchians recovered the so-called ‘advanced notosuchians’ in a clade, for which we propose a phylogenetic definition and erect the name Sphagesauria. We also recovered two more inclusive clades encompassing an array of Mesozoic notosuchians, here named Xenodontosuchia, which includes Sphagesauria + Baurusuchia, and Eunotosuchia, including Xenodontosuchia, Uruguaysuchidae and other Cretaceous forms. http://zoobank.org/urn:lsid:zoobank.org:pub:FD8D706F-9E01-4C09-BE4E-DC3BEDE151DC.en
dc.description.affiliationLaboratório de Paleontologia e Evolução de Ilha Solteira–Faculdade de Engenharia de Ilha Solteira FEIS-UNESP
dc.description.affiliationPrograma de Pós-Graduação em Biologia Animal Instituto de Biologia Letras e Ciências Exatas IBILCE-UNESP
dc.description.affiliationLaboratório de Evolução e Biologia Integrativa–Faculdade de Filosofia Ciências e Letras de Ribeirão Preto FFCLRP-USP
dc.description.affiliationLaboratório de Paleontologia–Faculdade de Filosofia Ciências e Letras de Ribeirão Preto FFCLRP-USP
dc.description.affiliationUnespLaboratório de Paleontologia e Evolução de Ilha Solteira–Faculdade de Engenharia de Ilha Solteira FEIS-UNESP
dc.description.affiliationUnespPrograma de Pós-Graduação em Biologia Animal Instituto de Biologia Letras e Ciências Exatas IBILCE-UNESP
dc.identifierhttp://dx.doi.org/10.1080/14772019.2021.1888815
dc.identifier.citationJournal of Systematic Palaeontology.
dc.identifier.doi10.1080/14772019.2021.1888815
dc.identifier.issn1478-0941
dc.identifier.issn1477-2019
dc.identifier.scopus2-s2.0-85105220929
dc.identifier.urihttp://hdl.handle.net/11449/207687
dc.language.isoeng
dc.relation.ispartofJournal of Systematic Palaeontology
dc.sourceScopus
dc.subjectBauru Basin
dc.subjectCaipirasuchus
dc.subjectNotosuchia
dc.subjectSanto Anastácio Formation
dc.subjectSphagesauridae
dc.titleA new species of Caipirasuchus (Notosuchia, Sphagesauridae) from the Late Cretaceous of Brazil and the evolutionary history of Sphagesauriaen
dc.typeArtigo
unesp.author.orcid0000-0002-1482-1286[1]
unesp.author.orcid0000-0003-1542-3199[2]
unesp.author.orcid0000-0003-1554-8346[3]
unesp.author.orcid0000-0003-3329-8766[4]
unesp.author.orcid0000-0001-8247-1022[5]
unesp.author.orcid0000-0003-1009-4605[6]
unesp.author.orcid0000-0001-6519-8546[7]

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