1) Invalid dinosaur 
Willinakaqe is an extinct genus of saurolophine hadrosaurid dinosaur which lived during the late Cretaceous (late Campanian-early Maastrichtian stage) of the Río Negro Province of southern Argentina. Willinakaqe is known from several disarticulated specimens, among them juvenile and adult individuals found at the Salitral Moreno site of the Lower...