Sousa is a municipality in the state of Paraíba in the Northeast Region of Brazil. It lies in the region called the Valley of the Dinosaurs, which c…Sousa is a municipality in the state of Paraíba in the Northeast Region of Brazil. It lies in the region called the Valley of the Dinosaurs, which contains a protected area containing dinosaur tracks. The municipality established the Valley of the Dinosaurs Natural Monument, a fully protected area, in 2002.