Invertebrate traces in pseudo–coprolites from the upper Cretaceous Marília Formation (Bauru Group), Minas Gerais State, Brazil

2016 ◽  
Vol 57 ◽  
pp. 29-39 ◽  
Author(s):  
Heitor Francischini ◽  
Voltaire D. Paes Neto ◽  
Agustín G. Martinelli ◽  
Vitor P. Pereira ◽  
Thiago S. Marinho ◽  
...  
2021 ◽  
Vol 61 ◽  
pp. e20216175
Author(s):  
Ramon Cavalcanti ◽  
Carlos Roberto dos Anjos Candeiro ◽  
Stephen Louis Brusatte ◽  
Kamila Luisa Nogueira Bandeira ◽  
Emerson Ferreira de Oliveira ◽  
...  

Titanosaurs are one of the most common dinosaurs found in Cretaceous outcrops, especially in Brazil. In this article we describe a proximal portion of an ulna (Paleo-UFG/V-0039) which was found isolated Paleo-UFG/V-0039 comes from a sandstone outcrop, with fine to medium granulation, of the Marília Formation (Bauru Group) that appears irregularly in the municipality of Gurinhatã, state of Minas Gerais, Brazil. The occurrence described here is the first dinosaur osteological remains documented in this municipality. Although incomplete, Paleo-UFG/V-0039 could be identified as an indeterminate lithostrotian titanosaur whose morphology is similar to some appendicular elements of European species than South American ones. However, the incompleteness of the specimen has difficult complex interpretations. Finally, Paleo-UFG/V-0039 highlights the importance of the Gurinhatã outcrops and other sites in this region for future discoveries.


2015 ◽  
Vol 61 ◽  
pp. 164-170 ◽  
Author(s):  
Agustín G. Martinelli ◽  
Thiago da Silva Marinho ◽  
Leonardo S. Filippi ◽  
Luiz Carlos Borges Ribeiro ◽  
Mara Lúcia da Fonseca Ferraz ◽  
...  

Geodiversitas ◽  
2012 ◽  
Vol 34 (3) ◽  
pp. 617-624 ◽  
Author(s):  
Carlos Roberto A. Candeiro ◽  
Federico Agnolin ◽  
Agustín G. Martinelli ◽  
Paulo Andreas Buckup

Author(s):  
Carlos Roberto A. Candeiro ◽  
Philip J. Currie ◽  
Caio L. Candeiro ◽  
Lílian P. Bergqvist

ABSTRACTLittle is known about the tooth wear of South American theropod dinosaurs. This paper describes wear facets in Abelisauridae, Carcharodontosauridae and some indeterminate theropods teeth, from the Marília Formation. Four types of wear facets are proposed: vertically-oriented attritional striations; perpendicular attritional surfaces; oval wear facets; and apical grooves. All these worn surfaces were produced by dental occlusion, except the apical grooves, which are produced by the contact between predator teeth and the prey bone during predator–prey interaction. More detailed biomechanical and hardness testing of teeth and bone may further elucidate the pattern of tooth wear in theropods.


Author(s):  
Ricardo Dalagnol ◽  
Carolina B. Gramcianinov ◽  
Natália Machado Crespo ◽  
Rafael Luiz ◽  
Julio Barboza Chiquetto ◽  
...  

2021 ◽  
Vol 108 ◽  
pp. 103349
Author(s):  
David Oldack Barcelos Ferreira Machado ◽  
Karina Ferreira Chueng ◽  
Heloisa Helena Gomes Coe ◽  
Alexandre Christófaro Silva ◽  
Camila Rodrigues Costa

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