Allosaurus fragilis: Make sure to only engage these skeletons when you have both the hookshot and the double-jump, as otherwise you won’t be able to successfully jump over its charge move without taking damage from the fire trail it leaves. A close-range weapon like a sword is best when counterattacking.
Protoceratops andrewsi: These are low to the ground, but they’ll jump over burst effects like the Freeze Wave. Instead, use homing missiles or the Pain Sphere to hit them. Most of them won’t take many hits, but they tend to swam.
Spinosaurus aegyptiacus: Use cluster bombs to discourage it from its lunging bite attack, the claw swipes can safely be ducked. If you’ve got the opportunity, triangle jump onto its back, as the thunder effects can’t hurt you up there. You can also try to rapid-fire these things down if you’ve got the laser upgrade.
Europasaurus holgeri: Offer these beasts a chestnut to pass without combat.
Liopleurodon ferox: This is not a dinosaur. If you are fighting one of these, let us know what you’re up to in the comments of this week’s What Are You Playing and include a note about fighting skeletal marine reptiles. Try to dodge its attacks or something, I guess.