First dinosaurs
~230 mya · Event
Dinosaurs emerge during the late Triassic and come to dominate terrestrial ecosystems.
On these timelines: Master, The Age of Dinosaurs
Around 230000000 BCE
- Permian–Triassic extinction (252000000 BCE)
- First mammals (225000000 BCE)
- Mesozoic Era (252000000 BCE)
- Triassic Period (252000000 BCE)
- First pterosaurs take flight (228000000 BCE)
- Archosaurs emerge (250000000 BCE)
- Lystrosaurus (252000000 BCE)
- Coelophysis (215000000 BCE)
- Plateosaurus (214000000 BCE)