A new basal rebbachisaurid (Sauropoda, Diplodocoidea) from the Early Cretaceous of the Neuquén Group; evolution and biogeography of the group

CARBALLIDO JOSE L.; SALGADO, LEONARDO; POL, DIEGO; CANUDO, JOSÉ I.; GARRIDO, ALBERTO

Historical Biology

Taylor & Francis

Año: 2012 vol. 6 p. 631 - 654

0891-2963

Despite that the origin of rebbachisaurids is retrieved as Late Jurassic can be recognised in the fossil record. The group is geographically restricted to Gondwana and Europe, and is particularly diverse in the lower Upper Cretaceous of South America. In this subcontinent, Early basalmost rebbachisaurid known. Here, we provide a revised description of the sauropod from the Lohan Cura Formation (Aptian- Limaysaurus sp. The new information available (mainly based on new Comahuesaurus windhauseni gen. et sp. nov. The phylogenetic form of rebbachisaurid, well separated from Limaysaurinae. In this rebbachisaurids more derived than Histriasaurus, which is completely  rebbachisaurids is analysed through the use of a Dispersal, Extinction and Cladogenesis analysis, which retrieves a South American origin dispersion to Africa and Europe during the Hauterivian?Barremian.