
A bold prohibition sign with a bright red circular border and diagonal slash against a clean white background, featuring a black silhouette of a child riding a triceratops dinosaur in profile—three horns, frill, solid black vector-style lines. The human figure is a simple stick-form person sitting upright on the dinosaur’s back. Centered, symmetrical composition, flat graphic design, high contrast, crisp vector art with no gradients or shading, minimalist and iconic, resembling classic ISO safety symbols for universal no-entry or warning use.