New sauropodomorph and cynodont remains from the Late Triassic Sacisaurus site in southern Brazil and its stratigraphic position in the Norian Caturrita Formation

Autor(es)

Marsola, Julio C. A. ^[1] ; Bittencourt, Jonathas S. ^[2] ; Da Rosa, Atila A. S. ^[3] ; Martinelli, Agustin G. ^[4] ; Ribeiro, Ana Maria ^[5] ; Ferigolo, Jorge ^[5] ; Langer, Max C. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Biol, FFCLRP, BR-14040901 Ribeirao Preto, SP - Brazil

^[2] Univ Fed Minas Gerais, Dept Geol, BR-31270901 Belo Horizonte, MG - Brazil

^[3] Univ Fed Santa Maria, Lab Estratig & Paleobiol, Dept Geociencias, BR-97105900 Santa Maria, RS - Brazil

^[4] Univ Fed Rio Grande do Sul, Inst Geociencias, Dept Paleontol & Estratig, Lab Paleontol & Vertebrados, BR-91540000 Porto Alegre, RS - Brazil

^[5] Fundacao Zoobot Rio Grande do Sul, Secao Paleontol, Museu Ciencias Nat, BR-90690000 Porto Alegre, RS - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ACTA PALAEONTOLOGICA POLONICA; v. 63, n. 4, p. 653-669, 2018.
• Citações Web of Science: 1

Resumo

Sacisaurus agudoensis is the only silesaurid known from the Triassic beds of the Santa Maria Supersequence and the correlation of its type locality to the other Triassic deposits of south Brazil has always been controversial. In an attempt to improve this, a handful of dinosaur and cynodont remains found associated to S. agudoensis are here described and compared. The anatomy of the sauropodomorph is more similar to that of Norian forms such as Pantydraco caducus and Unaysaurus tolentinoi than to that of Carnian taxa such as Saturnalia tupiniquim and Pampadromaeus barberenai. The cynodonts recovered based on isolated teeth include a brasilodontid and a Riograndia-like form. This assemblage is consistent with a Norian age, as is also suggested by local stratigraphic correlation, which positions the site in the Caturrita Formation. (AU)

• Processo FAPESP: 13/23114-1 - Revisão dos Sauropodomorpha (Dinosauria) do Carniano (Neotriássico) com a descrição de novos materiais de Saturnalia tupiniquim
• Beneficiário: Júlio Cesar de Almeida Marsola
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 16/02473-1 - Novos materiais de Laquintasaura venezuelae (Ornithischia, Dinosauria), ITS phylogenetic significance for the early radiation of dinosaurs
• Beneficiário: Júlio Cesar de Almeida Marsola
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 14/03825-3 - A origem e irradiação dos dinossauros no Gondwana (Neotriássico - Eojurássico)
• Beneficiário: Max Cardoso Langer
• Modalidade de apoio: Auxílio à Pesquisa - Temático