Rex vs Spino

In my oppinion t-rex would definetly win.

Spinosaurus at its max (roughly 56 feet in length and around 12 tons) would win. Although it was a piscivorous animal, that does not mean that its jaws were weak at all. They were, in fact, really strong and quite resistant to both lateral and dorsal forces; they were very dense, especically compared to the jaws of carnosaurs. At length parity, however, tyrannosaurus wins for obvious reasons.

Godzillasaurus, me, Rex Fan, and Mrhappy have said time an time again, Rex vs Spino is dead. Sizes are so unknown for Spino, that we can't say what it really was in weight. Also, only part of a jaw has been found. Not much to go by on bite force. 

I have been here (at Jurassic World) less than a day... I am not going to go through every single thread to see what you guys had to say. If you ask why I have over 50 posts, then I should tell you that most of those are from the Godzilla forum.

Spinosaurus had way more powerful and heavily-built jaws than people make them out to be. You see, its thin rostrum was actually quite dense and robust in the region posterior to the specialized cleft, especially compared to allosauroid jaws; they were actually quite robust despite being thin. This is an adaptation for resistance to stress exerted by the massive fish that made up a large part of its diet; spinosaurids needed to have very strong jaws to withstand such amazing amounts of pressure because they evolved to grip. Bite force is somewhat unknown (although some estimates point to 2-3 tons of force), but I can tell you now that spinosaurus did not have weak jaws the least bit in the realm of overall robusticity, even if its bite force was subtle.

@Spix Macaw Jack, you are misinformed. Spinosaurus teeth were hollow, conical (cone shaped), and unserrated, but they were most certainly NOT brittle and were in fact quite sturdy and heavily-structured. Spinosaurus\\\' jaws and teeth were designed for gripping powerful aquatic animals, so both needed to be very strong. The conical shape of spinosaurine teeth were perfectly-built for piercing and gripping, yet they were still thick and were more than capable of withstanding decent amounts of pressure.

Tyrannosaurus teeth were built like serrated spikes. This does not necessarily mean they were more resistant to lateral forces than the teeth of spinosaurus, as spinosaurus\' dentition itself was also very strong and thick and was designed to retain a firm grip on large aquatic animals without breaking. Tyrannosaurid teeth, on the other hand, were designed for crushing vertically and not gripping. The same goes for the jaws, which were very heavily-built and thick (both dorsally and laterally).

Man, the inaccuracies on this forum are insane...

Tyrannosaurus Bite Force- 3-9 tons psi

Spinosaurus Bite Force- 2-4 tons psi

Weight(the determining factor when it comes to size for animals) is heavily debated between scientists and everyday people.

And Godzillasaurus, it's not inaccuracies. It's a difference of opinions. Once you call someone flat out wrong, you lose nearly all credibility. End of story.