Tyrannosauroids from the Southern Hemisphere: Implications for biogeography, evolution, and taxonomy

Tyrannosauroidea is a well-studied group of carnivorous dinosaurs known mainly from the Late Cretaceous of the Northern Hemisphere. Specimens from Australia (Timimus hermani and the articulated pubes NMV P186046) and Brazil (Santanaraptor placidus) have been referred to this clade, but their phylogenetic placement is unresolved. Here, we investigated the phylogenetic positions of these Southern Hemisphere specimens within the theropods and among...