Osteology and systematics of Uberabatitan ribeiroi (dinosauria; sauropoda): a late cretaceous titanosaur from Minas Gerais, Brazil
Uberabatitan ribeiroi is a Late Cretaceous titanosaur (Dinosauria, Sauropoda) from Brazil. Here we provide a detailed revision of all its available specimens, including new elements from the type-locality, helping to increase the anatomical knowledge of the taxon. Two new autapomorphies are proposed...
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| Tipo de recurso: | tesis de maestría |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | Brasil |
| Institución: | Universidade de São Paulo (USP) |
| Repositorio: | Biblioteca Digital de Teses e Dissertações da USP |
| Idioma: | inglés |
| OAI Identifier: | oai:teses.usp.br:tde-24032023-100056 |
| Acceso en línea: | https://www.teses.usp.br/teses/disponiveis/59/59139/tde-24032023-100056/ |
| Access Level: | acceso abierto |
| Palabra clave: | Osteologia Osteology Sauropoda Sistemática Systematics Titanosauria Uberabatitan ribeiroi |
| Sumario: | Uberabatitan ribeiroi is a Late Cretaceous titanosaur (Dinosauria, Sauropoda) from Brazil. Here we provide a detailed revision of all its available specimens, including new elements from the type-locality, helping to increase the anatomical knowledge of the taxon. Two new autapomorphies are proposed: (1) line through the distal condyles of the femur is perpendicular to the long axis of the shaft in anterior view and (2) astragalus with a well-developed anteroposteriorlly crest that delimits distally the tibial articulation. Further, linear regressions were conducted in an attempt do circumscribe specimens within the type-series, revealing that this is composed of several individuals, with sizes varying from 7 to 26 meters. Finally, phylogenetic analyses including U. ribeiroi show that the Brazilian taxon corresponds to a non-Saltasauridae titanosaur. |
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