closeup of a tyrannosaurus rex or t-rex a genus of large theropod dinosaur

color dinosaur extinct horizontal people animal paleontology wildlife theropod headshot carnivorous closeup side view zoology themes cretaceous one ancient body head mouth art product open paleozoology prehistoric era tyrannosauridae clip cut evolution furious science showing textured vertebrate vertical aggression roaring scar sharp toughness toy empty figurine portrait outdoors tyrannosaurus rex trex genus large