And... They didn't lived in the same place and not even in the same era
So I think It would be about power, huh?
In a fight... It would also depend were they would be fighting, right?
Since spin-chan would thrive in water... But trex-chan is heavier (could I say "bulkier" too? Don't know...)
I lack in knowledge about it
Eight it would depend where the fight was, so that guy can't answer correctly , trex is bulkier and spin chan has a long nose so it makes him longer i guess but it still depends on where they fight , let's take out the time aspect they really wouldn't meet to fight
So who would win the spiranasorus or the tyranasorous, I looked it up trex on land spiranasorous in water