Did Spinosaurus also live in South America?

Hello! Spinosaurus was originally found in Egypt in North Africa. The only finds so far that can be definitively attributed to Spinosaurus come from North Africa. However, for several years now, it has also been considered possible that Sigilmassasaurus, which, like Spinosaurus, lived in North Africa, and Oxalaia, which was found in Brazil, belong to…

Which dinosaurs had feathers?

Hello! It's been known that some dinosaurs had feathers since the 1990s, when feathered dinosaurs, such as Sinosauropteryx, were first discovered in rock layers from the Lower Cretaceous of China. But a few years later it was also discovered that at least some bird-hipped dinosaurs, such as the original horned dinosaur Psittacosaurus, had bristle-like structures…

Did the Nanotyrannus exist?

Hello! The validity of the tyrannosaurid genus Nanotyrannus from the Late Cretaceous of North America has been strongly questioned over the past few years. Instead, many paleontologists believe it represents juvenile specimens of Tyrannosaurus rex. However, I recently heard of a study suggesting that Nanotyrannus probably represents a separate species. Did Nanotyrannus actually represent a…