Alamosaurus
Alamosaurus (; meaning "Ojo Alamo lizard") is a genus of titanosaurian sauropod dinosaurs, containing a single known species, Alamosaurus sanjuanensis, from the late Cretaceous Period of what is now southern North America. Isolated vertebrae and limb bones indicate that it reached sizes comparable to "Argentinosaurus" and "Puertasaurus", which would make it the largest dinosaur known from North America. Its fossils have been recovered from a variety of rock formations spanning the Maastrichtian age of the late Cretaceous period. Specimens of a juvenile "Alamosaurus sanjuanensis" have been recovered from only a few meters below the Cretaceous-Paleogene boundary in Texas, making it among the last surviving non-avian dinosaur species.
Prata, Minas Gerais
At Prata there were found rock paintings and fossils of the biggest dinosaur found in Brazil which lived 80 million years ago in the region of Serra da Boa Vista, 40 km from the municipal seat.
The dinosaur was called Maxakalisaurus topai and, after popular vote, it is now known as DINOPRATA.
The model of the 13 meter long titanossauro (made in resin) has been on display in the Museu Nacional do Rio de Janeiro since August, 2006.