A new Early Cretaceous brachiosaurid (Dinosauria, Neosauropoda) from northwestern Gondwana (Villa de Leiva, Colombia)

摘要: ABSTRACTBrachiosaurid sauropods achieved a broad distribution during the Late Jurassic, which has been considered to provide evidence of their origins Middle prior breakup Pangea. In contrast geographic formally named brachiosaurid species from Cretaceous have so far restricted Aptian–Albian North America, interpreted as signal differential extinction and/or bias in Early fossil record. Here we describe new titanosauriform taxon Colombia, is represented by axial elements. The material was recovered marine sediments Paja Formation (Barremian), close locality Villa de Leiva. weakly laterally expanded and divided transverse processes anterior-most caudal vertebrae allows recognition sauropod taxon, Padillasaurus leivaensis, gen. et sp. nov. order test phylogenetic ...