Soul Release is the most direct way to remove cards from your opponent’s Graveyard, before you Special Summon Gilasaurus. This will ensure they are unable to Special Summon any monsters due to Gilasaurus’ effect.
Jurassic World is a Field Spell that increases the ATK and DEF of all Dinosaur-type monsters by 300. Fossil Dig is able to search for any Dinosaur monster which is Level 6 or lower, from your Deck. Fossil Excavation can Special Summon any Dinosaur monster from your Graveyard, but its effects are negated.
I think this card could be useful in help summoning guardian grarl. If you get 3 gilasurus, 3 gaurdian axes, and 3 gaurdian grarls in your deck then special summoning gaurdian grarl should be easy. You could special summon 2 of these place an axe on one and assuming you have only 4 cards in your hand special summon gaurdian grarl with its special effect. And 1700 attack with dinosaur kingdom is pretty good.