Tyrannosaurus rex

[DinoFan83]

@Spalea 

I think you are misunderstanding what I meant by that. Nowhere did I say that Spinosaurus nor the aforementioned carcharodontosaurids were smaller than Tyrannosaurus. What I said was that Tyrannosaurus was more robust than they were, which can be true whether or not Tyrannosaurus happened to be smaller or larger. Going by an animal's build alone can be very misleading; for example, comparing the femur of Triceratops with the femur of Antarctosaurus giganteus, you'll notice Triceratops is the more robust of the 2. However, no matter how much more heavily built it is, in no way is an 8-14 tonne ceratopsian larger than a 69 tonne titanosaur, and it's similar here. Spinosaurus and the giant carcharodontosaurids, despite the fact that they seem to be quite larger than Tyrannosaurus, are less robust than it. Simple as that. Reply