A bold warning from the Cretaceous! This vintage-style design features a high-contrast linocut of Spinosaurus aegyptiacus, the semi-aquatic apex predator of the Late Cretaceous period (about 100–93 million years ago). Known for its crocodile-like jaws, towering sail, and piscivorous diet, Spinosaurus once patrolled ancient river systems where danger lurked just below the surface.

Whether you’re a paleontology enthusiast or just enjoy prehistoric humor, this sign-style shirt brings scientific edge with a retro touch.
Every order funds kelp restoration on the Pacific Northwest coast.