Bad news for Spino

When I was thinking about Spinosaurs, I realized that none of them live in America. At least North America, and this makes me wonder, "why"? Spinosaurs in the north isn't as rare as it might be. Suchosaurus, Baryonyx, and I bet even Icthiovenator lived above the equator sometimes. Also, why where they so big, and yet they lived in places where food was small, or just too big. Ie, in Africa the only real good food source is Ouranosaurus. It is the perfect size for a meal, and Aegyptosaurus is to big to be attacked regularly. It really lacks herbivores, and yet it grows huge. same of Oxalaia, it lived in a place of nearly no hadrosaurs and only sauropods that only the biggest or packs would take on. That means that they relied very heavily on fish for their diet. Hadrosaurs and Ceratopsians really aren't on the menu. Why haven't any Spinosaurs been found in America? Well I think that they where out competed by the tyrannosaurs, or even Acrocanthosaurus. And correct me if im wrong (and my ancient geography isnt good at all) but america wasnt the wettest country there was. spinosaurs seem to live in places where lost of water surrounded it, like africa, with its see going In the middle. there where rivers in america, but i dotn think anything lived in the rivers big enough to sustain a large spinosaur. But there is a very different side to this story. One, Siamosaurus and Siamotyrannus lived together and they both thrived. Two, and this is almost a life changing thing about Spinosaurus, is that Spino is probably a LOT heavier than we originally thought. In my theropod discussion, I DinoFights made a comment that basically said that compares a Ornithomimus to a Spinosaurus. And how an 18 meter Ornithomimus would be peretty heavy, and since Spino is sooo much thicker than Ornithomimus, that it would be calling a 12 ton Spinosaurus on the lighter side. I also have something to argue with that. A 12+ ton Spinosaurus wouldn't be able to stand, which means that it would need to be soley in the water for most of its life, and that can't really happen. There is only so much weight that two legs can support and the heavier you get, the stronger your legs need to be, which also means you get heavier, and that means that your legs have to support more. Even if you have shorter legs like Spinosaurus, you could only be able to support so much weight. Also, the strength of its legs would start to fall behind if a theropod gets just to big, fan even as they get thicker, the rest of the body gets thicker at a faster rate. Basically what I'm saying is an 11 tons Spinosaurus would have trouble standing without help, so a 12+ ton Spinosaur would need to be supported by the water, meaning it could catch fish, and really only fish, so then why is it so heavy? It would just waste energy, and nature doesn't waste. This happens for all theropods, so there is size limit for the size of a theropod and weight. I do apologize for the grammar and spelling mistakes, I really hate doing revising on any day, even if it is a dinosaur paper. All I'm saying is that Spinosaurs didn't live in America for a reason. The hadrosaurs and Ceratopsians. They are made to survive very strong dinosaur attacks, and the Spinosaurs really aren't durable enough. I'd like to hear what you say, of course, I'd need to turn up the adio on my IPad and you speak into a speaker. You know, what, just make a comment and we won't have to go thought eh trouble of figuring something out. These are my opinions too, and I don't want anybody saying that I'm wrong, okay. We all have opinions and I probably disagree with you. That doesn't mean you are wrong and I'm write. Just telling you, although you probably already know.