Poisoned caltrops, whoppin' big ones?

Since *I* don't want to loot T-Rex or velociraptor nests, I'd rather domesticate whatever modest-sized species that already likes big-dinosaur eggs, and help their lives. Maybe paint them some better cammo, or teach them some pack-type or diversionary-attack tactics. They'd make dandy guard-dogs and attack-pets in any human-vs-human conflict as well.

Noise. Everybody knows carnivorous dinosaurs HATE the sound of fingernails (or claws) on a chalkboard, so amp that up with simple parabolic leather-and-stick reflectors and you have a repeller-method. Once you can get them on the run, it is simple work to bison them off a cliff, or lemming them into the ocean. Or even to Brea them into a tarpit, which might have the side effect of making them stick around for dinner (yours instead of theirs).

Catapults too slow? Nope. Even swift carnivores are stationary when feeding (or sleeping). Easy to predict where they will feed, if the feast is a bait animal...