Quote: T-Rex needed to be built tougher due to the environment it lived, and what it hunted. Spino didn't need to be as heavily built because it ate fish, so it spent most of it's time in or around water. T-Rex needed to be able to fight for it's food, while Spino just needed to hook it on it's claws.
Actually, the lifestyle of spinosaurus suggests that strong jaws (note, I did not necessarily say "powerful") are a necessity. I have explained this to you over and over again! Unless you can provide evidence that spinosaurus did not have strong jaws, I cannot believe you. I have provided evidence as to why this is not the case, but yet you refute it and claim that "it iss a oppinnion!"
Quote: I think Giga was more built for killing than Spino, so it would have a thicker skull then Spinosaurus, so I included this pic.
See, this is what I am talking about. You claim that giganotosaurus had a "thicker" skull than spinosaurus but yet have no reason to believe that besides the claim that "gigan an is desined fore cilling! spino is not witch thus meens that spinosaurus had a weeker snout!"
The possession of a robust morphology is far more evident in spinosaurus than in giganotosaurus; I cannot stress this enough. Giganotosaurus possessed a very lightly-constructed skull that was only designed to be used for vertical killing and would most likely be damaged via stress fracturing if it tried to grip large animals. Spinosaurus did not possess this snout anatomy and was instead characterized by a particularly more robust snout (in terms of build) that was well designed for gripping without fracturing. There does not have to be sources for this for it to be correct.
