Looks like an amphibious version of T Rex... grotesque compared to T. rex, but the longer snout seems more synonymous with fish catching than for land beast snagging...
And how can we be certain that these bones were layed out correctly and are not a mix of different beasties that happened to be in the same hole?
Some of theses "bingo!" skeletons just don't seem to be a natural evolutionary process... so I suspect they have it all wrong... and here is 'Hack a Saurus Lex'.
Well, the Tyrannosaurus was the dinosaur equivalent of a Tasmanian Devil - a life support system for a mouth.
Spinosaurus mostly operated on all fours, had huge front claws for disemboweling prey, but conical teeth not serrated teeth. It apparently ate a lot of fish.
It depends on tactics.
But if the Tyrannosaurus managed to bite the neck of Spinosaurus it would be over.
My money would go on the Trex. The undisputed heavy weight champion of the world. Ol' Trex gets his mouth on any vital part of the Spinosaures it's game over man. Big bastards would probably throw Spinosaures over with its powerful jaws and it would be dinner time.
Real life it wouldn't end that way. Million bucks on the Ol' girl Trex. She gets her jaws on him a few times and I'm real life she would be pulling chunks out.