I understand that aquatic dinosaurs are meant to be very aggressive and deal a massive damage but they are always deal huge amount of damage, even when stranded. Aquatics normal attack damage should be balanced to be as equal to other dinos, and about the massive damage, how about make it a special chance for it to happen, and only with certain enemies, or situations. grabbing attack, applied on ice and fire mobs and spinosaurus, they deal a massive damage, and only to certain targets, dragons and cyclops only grabs mobs that are smaller than them. so, in conclusion, make aquatics normal damage balance, and when versus mobs that are small, like a player, and in some situation like when underwater only, the aquatic will display a grab attack that take out a huge chunk of the enemys hp, if the target is bigger than they will just bite them to dead over time.

aquatics are killing sea serpents from ice and fire by dealing 68 hp at the time.