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

BIBLIOGRAFIA
Nominativo AutoriFILIPPI L., CANUDO J.I., SALGADO J.L., GARRIDO A., GARCIA R., CERDA I., OTERO A.
Anno2011
TitoloA new sauropod titanosaur from the Plottier Formation (Upper Cretaceous) of Patagonia (Argentina)
EdizioneMarzo 2011
Serie Volume9 (1):1-12
IllustrazioniFIGG. 6, TABB. 1
Parole chiave / Key words Paleontologia, Vertebrata, Dinosauri, Cretaceous, Titanosauria, Incertae sedis, Petrobrasaurus puestohernandezi.
Riassunto / AbstractThis 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.
Note GeograficheArgentina, Patagonia Region, Neuquén Province, Rincón de los Sauces, Puesto Hernandez. Plottier Formation.