The study of dinosaurs is quite fascinating. All that remains of that age are fossils from hundreds of years ago. That is the only evidence that points to a life dinosaurs led. The facts regarding these species keep changing as new information unfolds every single year. Brontosaurus is a type of dinosaur that is believed to be have been Semi-aquatic. These dinosaurs were mostly believed to be swamp-dwelling creatures.
Brontosaurus was Giant herbivores with long necks and tails, that lived in the swamps. That’s why it was believed that they had to be Semi-aquatic to survive in the swamps. However, recent studies point in different directions. In 1971, Robert Baker, a paleontologist argued that Brontosaurus was land-based.
The argument was based on the fact that these dinosaurs had nostrils similar to those of terrestrial lizards. That’s why it was believed by Robert that Brontosaurus was terrestrial. But in the 1980s studies found that brontosaurus and its fellow sauropod had hollow bones.
If their skeletons were buoyant that means these dinos could swim. But there was no evidence about Brontosaurus or its kin swimming. So that assumption remains unproven. However, at a later date, it was found that brontosaurus stomped through arid lands.
There were pollen and plants preserved near Brontosaurus fossils, that were discovered in recent years. It points to the fact that Brontosaurus was in fact land-based or terrestrial, and they might not have been Semi-aquatic. Nothing can be said for sure. It all depends on the information that will be uncovered by further studies of the fossils.