Giga vs spino

I dunno, Spinosaurus did have A slightly smaller(no less lethal) Carchardontosaurid that it lived with it in Carcharodontosaurus, so the species probably knew how to deal with this family of theropods. I don't see Giga's minor size advantage over carchy being much help against a 16 meter spinosaurus....

I say the odds are 55-45 in favor of Spino.

Sauroniops also lived with spino and giganotosaurs lived with oxalia i think. So giga new how to deal with spinosaurids. I'm making a Dino story called fight for life , could you help me ?

definetly! just shoot me a PM and i'll help ya!