Spinosaurus Jaws Discussion

Woah Mr Happy, i said i would never let go of that till further evidence, which of right now the evidence is in my favor. Its just like how you guys wont let go of trex being the biggest. And PLEASE, with all of the power invested in you to stop referring to him as the "King". Im sorry, its just one of the things that really gets under my skin because its really seeming to me that you are really trying to make people agree what you think. PS, no anger towards any of you.

Well, let's not get into any Spino vs. Rex discussion, as the theories Godzillasaurus posted are only about Spinosaurus' skull.

This is getting closer and closer to an ugly debate, so please, let's just enjoy those interesting theories, and not start a no-end situation, shall we?

For EVERYBODY  (including me ;) )

@Backinaction, you need to stop dead in your tracks before you start something you cant end

Sorry S-Rex, didn't mean to sound like a jerk. About backinaction, I doubt he knows what he's talking about, and I say "The King," because Rex translates to King, and I like saying King.

About Spino's bite force, I would think it would be pretty strong. Why? Look at a crocodile or alligator of today. They have the strongest bite force of any known animal living today. Spinosaurus was a lot like these reptiles, so there you have it. I don't think it was super strong or anything, just an average bite force among carnivores.

    As far as diet goes, I really hate the theory of Spino sating ONLY fish. How could a dinosaur that big have a diet of 100% fish? I'd say like a crocodile. About 75% fish, and 25% other. Like, at certian times or places, they might eat different things. Take the orca for example. There's about three species of orcas, and each species eats different things, but mostly the same. My point is, Spinosaurus ate mostly fish, but not 100% fish.

For your plight about its diet, I pretty much agree. I must inform you, however, that the fish that likely made up most of spinosaurus' diet were quite large actually (like around 10-20 feet in length, and far heavier than both me and you combined) and their presence in spinosaurus' ecosystem correlated perfectly with its snout and tooth anatomy as well as its impressive forearms tipped with enlarged hook-like claws (they would have been useful as fish hooks)

no one said he ate goldfish mate. i'm pretty sure no one said they ate small fish...yes it ate large fish, Onchopristis wasn't a light weight!  the other fish in the area probably weren't small...and that's a possible reason it got adapted to eating them. CArcharodontosaurus, Sauroniops, Bahariasaurus, and this new abelisaur that i've heard so much about probably competed heavily for the sauropods and hadrosaurs on land. It would make sense for Spinosaurus to look to the water for prey, there's no competition! with the exception of Sarcosuchus of course..

That is basically what I said; spinosaurus was not entirely reliant on fish, but most of its diet is comprised of them. What the guy above me was implying was that spinosaurus was "too large to only prey on apparently small fish". It was simply very well designed for predation on the large freshwater fish that existed in its ecosystem, so naturally that seems to be depending on the whole competition factor.

Animals all have a certain niche by which they live and are adapted to cope with, thus it is no surprise as to why spinosaurus evolved distinctive gripping adaptations from all if not most non-spinosaur macrophagous theropods; as a physical adaptation for its primarily ichthyophagous lifestyle. Just as carcharodontosaurus and bahariasaurus (which was a macrophagous ceratosaur btw) for example were designed for killing larger animals mainly whereas spinosaurus was adapted for fishing. Of course spinosaurus was not preying on goldfish, but in response to the last guy's comment, every animal lives in a certain niche. Take baleen whales for example

yes, exactly. Onchopristis got what? over 15 feet long? with prey that big...of course Spino would evolve to better tackle them. That's something we can agree on Godzillasaurus ;)

^ Ain't it so fun looking at this topic after months and the new Spino fossils? :)