Terrible Lizard (Oni Press, 2015)

The touching story of a girl and her T-Rex—with a healthy dose of collateral damage and monster conflict on the side! When the scientists of Cosmos Labs punch a hole through time and space, they pull a ferocious dinosaur into the present. The dinosaur imprints on teenage Jessica, proving to be more mischievous than vicious. But he is not alone. Strangely mutated, prehistoric monsters begin attacking our world. When "temporal displacement" means "mutant creatures attacking the world while the U.S. military is trying to kill you," what's a girl and her dinosaur-fighting dinosaur supposed to do?