A new sauropod titanosaur from the Plottier Formation (Upper Cretaceous) of Patagonia (Argentina)



L. Filippi, J.I. Canudo, L. Salgado, A. Garrido, R. García, I. Cerda, and A. Otero


This paper presents a new titanosaur sauropod, collected from levels of reddish clays assigned to the Plottier Formation (Coniacian-Santonian). The holotype of Petrobrasaurus puestohernandezi gen. et. sp. nov. is a disarticulated specimen, from which teeth, cervical, dorsal and caudal vertebrae, sternal plates, metacarpals, femora, tibia, a fragment of ilium, pubis, haemal arches, and cervical and dorsal ribs have been preserved. This period is of particular interest because it saw the definitive isolation of the vertebrate faunas of Patagonia, with the separation of South America from the rest of Gondwana, a process that had begun during the Early Cretaceous. Although some of the characters observed in Petrobrasaurus gen. nov. suggest a relationship with the South American clade Lognkosauria, this new sauropod is regarded as Titanosauria incertae sedis until a more profound analysis of the Titanosauria that in which it is included is undertaken.
Dibujo de la reconstrucción en vida: Dr. Ezequiel Vera.
Filippi L., Canudo, J.I., Salgado, L., Garrido, A., García, R., Cerda, I., Otero, A., 2011. A new sauropod titanosaur from the Plottier Formation (Upper Cretaceous) of Patagonia (Argentina). Geológica Acta 9 (1):1-23.

3 comentarios:

Cecy dijo...

Vida, te mereces esto y ..... MUCHISIMO MAS!!!!!! FELICITACIONES!!!!!!!!!!! Y van..........
TE AMAMOS!

Anónimo dijo...

Hi, Felipe, how are you?
My name is Ricardo Moreira, I´m a science writer at Folha de Sao Paulo (Brazil). Sorry for writing in english, but I don´t know a lot of spanish - and "portunhol" is very ugly. I really liked your work, I have two questions: 1) How exactly Petrobras helped you? 2) Can I use this image from Ezequiel Vera in out newspaper? If you want, we can talk via e-mail: ricardo.moreira@grupofolha.com.br I just need to ask you to answer as soon as you can, because we would like to finish this article until sunday (tomorrow!! Because Época magazine already published it!).
All the best,
Ricardo

Agustin dijo...

Hola Leo!
Muy bueno el laburo!! y el blog tambien!
Abrazo