The Baurusuchidae vs Theropoda record in the Bauru Group (Upper Cretaceous, Brazil): a taphonomic perspective

Bandeira, Kamila L. N.; Brum, Arthur S.; Pêgas, Rodrigo V.; Cidade, Giovanne M.; Holgado, Borja; Cidade, André; Souza, Rafael Gomes de

doi:10.1007/s41513-018-0048-4

Cited by 31 publications

(22 citation statements)

References 78 publications

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“…2009; Molnar 2010; Bandeira et al . 2018). It is possible that Cretaceous sauropodomorphs, especially titanosaurs, are more easily identifiable from limited material, enabling recognition of numerous species, but consequently reducing the average skeletal completeness in the period.…”

Section: Discussionmentioning

confidence: 99%

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Ten more years of discovery: revisiting the quality of the sauropodomorph dinosaur fossil record

et al. 2020

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Spatiotemporal changes in fossil specimen completeness can bias our understanding of a group's evolutionary history. The quality of the sauropodomorph fossil record was assessed a decade ago, but the number of valid species has since increased by 60%, and 17% of the taxa from that study have since undergone taxonomic revision. Here, we assess how 10 years of additional research has changed our outlook on the group's fossil record. We quantified the completeness of all 307 sauropodomorph species currently considered valid using the skeletal completeness metric, which calculates the proportion of a complete skeleton preserved for each taxon. Taxonomic and stratigraphic age revisions, rather than new species, are the drivers of the most significant differences between the current results and those of the previous assessment. No statistical differences appeared when we use our new dataset to generate temporal completeness

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Section: Discussionmentioning

confidence: 99%

“…2007; Bandeira et al . 2018). With this in mind, a relationship between body size and completeness for sauropodomorphs could be non‐linear; therefore, we also tested for a non‐linear relationship between the two variables.…”

Section: Methodsmentioning

confidence: 99%

Ten more years of discovery: revisiting the quality of the sauropodomorph dinosaur fossil record

et al. 2020

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“…It increases the Coniacian sauropod record of the Neuquén Basin and provides new knowledge about the stratigraphical distribution of Patagonian sauropods. New vertebrate data are also supplied by Bandeira et al (2018) via an interesting study that compares the known fossil diversity of Theropoda, Baurusuchidae, and Titanosauria from the Upper Cretaceous (Campanian-Santonian) Bauru Group (Brazil), which introduce a taphonomic class of each fossil considered. From this, Bandeira et al (2018) demonstrate that different degrees of bone representativeness and preservation quality pattern exist on these groups.…”

Section: The Cretaceous (145-66 Ma)mentioning

confidence: 99%

“…New vertebrate data are also supplied by Bandeira et al (2018) via an interesting study that compares the known fossil diversity of Theropoda, Baurusuchidae, and Titanosauria from the Upper Cretaceous (Campanian-Santonian) Bauru Group (Brazil), which introduce a taphonomic class of each fossil considered. From this, Bandeira et al (2018) demonstrate that different degrees of bone representativeness and preservation quality pattern exist on these groups. This work further reveals that baurusuchids lived close to or in the abundant flood plains, while theropods and titanosaurs did not live on such environments, which would explain the unequal observed preservation.…”

Section: The Cretaceous (145-66 Ma)mentioning

confidence: 99%

Palaeodiversity and evolution in the Mesozoic world

Holgado

Suñer

2018

J Iber Geol

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“…The lack of an appropriated biostratigraphic correlation of the clades or assemblage zones implies in innacurate results in the trophic analysis performed by Godoy et al [ 30 ]. Besides, recent works [ 32 ] suggest a potential bias on the vertebrate fossil record from Bauru Group, with the mesoeucrocodylians providing a more complete specimens due its life habit (near river plains and streams) and burial behavior.…”

Section: Introductionmentioning

confidence: 99%

Reassessment of the enigmatic crocodyliform "Goniopholis" paulistanus Roxo, 1936: Historical approach, systematic, and description by new materials

et al. 2018

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The Crocodyliformes are the most represented vertebrate clade in the Upper Cretaceous sequences of the Bauru Group, Paraná Basin. However, some of the species described have an uncertain taxonomic status and phylogenetic position. For instance, “Goniopholis” paulistanus has been assigned as a nomem dubium, due to its description being based on scarce material. The “G”. paulistanus specimens (i.e. teeth and a left tibia) were discovered in two different localities in São Paulo state: Mirandópolis and Valparaíso municipalities; where the upper interval of the Adamantina Formation (Early Maastrichtian of Bauru Group) crops out. Revisiting these specimens, we observed multicrenulated teeth in middle dentary toot- row, a remarkable feature only shared with teleosaurids Machimosaurus hugii (Upper Jurassic of Laurasia) and M. rex (Lower Cretaceous of Tunisia). This apomorphy was also recognized in new material from the Alfredo Marcondes municipality (Presidente Prudente Formation), which are here also referred to “G”. paulistanus. We recognized the teeth of “G.” paulistanus as the lectotype, however the tibia cannot be assigned to a species as it was not collected in association with the teeth. We performed a phylogenetic analysis with a data matrix composed of 388 characters and 86 taxa, analyzed in TNT. The strict consensus tree recovered Neosuchia and Ziphosuchia (Notosuchia + Sebecia) within Mesoeucrocodylia. The species “G” paulistanus is valid, as a distinct and new genus within Sebecia, in a polytomy with Barreirosuchus, Pepesuchus, Itasuchus and Peirosaurus, forming the clade Itasuchidae. Stolokrosuchus is the sister taxon to Itasuchidae, the sister group of all other Sebecia (Peirosauridae (Mahajangasuchidae + Sebecidae and taxa affinis)). The clades Ziphosuchia, Sebecia and Itasuchidae are here redefined, and we find the last two clades to be more closely related to terrestrial notosuchids than to semiaquatic neosuchians.

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The Baurusuchidae vs Theropoda record in the Bauru Group (Upper Cretaceous, Brazil): a taphonomic perspective

Cited by 31 publications

References 78 publications

Ten more years of discovery: revisiting the quality of the sauropodomorph dinosaur fossil record

Ten more years of discovery: revisiting the quality of the sauropodomorph dinosaur fossil record

Palaeodiversity and evolution in the Mesozoic world

Reassessment of the enigmatic crocodyliform "Goniopholis" paulistanus Roxo, 1936: Historical approach, systematic, and description by new materials

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