Dinosaur Timeline

First dinosaurs appear. Small, bipedal, rare. Dominated by other reptiles.

Dinosaurs diversify after Triassic extinction. Sauropods grow larger.

Sauropods become dominant herbivores. Stegosaurs appear.

The golden age. Brachiosaurus, Allosaurus, Stegosaurus, Archaeopteryx.

Flowering plants appear. Feathered dinosaurs diversify in China.

T. rex, Triceratops, Spinosaurus. Ends with asteroid impact.