Evolutionary classification of dinosaurs, illustrating the divergence of Dinosauria into Ornithischia, Saurischia, and Aves, with key prehistoric and modern examples.
Evolutionary classification diagram showing the phylogenetic tree of Dinosauria, including Ornithischia, Saurischia, and Aves, with examples like crocodiles, ornithischians, sauropods, T. rex, Archaeopteryx, and modern birds.