Spinosaurothoides

Spinosaurothoides was a gigantic predatory Spinosaurid that lived in the same place at the same time as Spinosaurus, living in Africa around Early to Late Cretaceous about 112-93.5 million years ago. Unlike Spinosaurus, which was a quadrupedal fish-eater, Spinosaurothoides was a bipedal predator that feeds on many land-dwelling animals, not just aquatic animals, so Spinosaurothoides matches the description of the outdated 2001-2014 Spinosaurus, despite being a completely different species entirely. Spinosaurothoides was among the biggest carnivorous dinosaurs on Earth, being known to grow about 50 feet long and weighed about 9 tons, although it is dwarfed by the Megadontosaura and the Indominus. While Spinosaurus lived mainly in waters and had often only go onto land to lay eggs or move to new lakes/rivers, Spinosaurothoides lived on both land and in water equally. Sometimes there were fierce competitions for food with fully-terrestrial carnivores such as Rugops and Carcharodontosaurus, and sometimes there were fierce competition for food against semi-aquatic Spinosaurus as both the bipedal Spinosaurothoides and the quadrupedal Spinosaurus fed on. No one knows why the Spinosaurothoides became extinct, but it is likely that Carcharodontosaurus and Rugops had outcompeted the Spinosaurothoides to extinction, so if Spinosaurus never became extinct before the last days of the dinosaurs (66 million years ago) while Spinosaurothoides became extinct, Spinosaurus would have become fully aquatic species and could have survived extinction if it weren't for Spinosaurothoides competing against Spinosaurus for food.