Cretaceous–Paleogene extinction
~66 mya · Event
Chicxulub asteroid impact ends the non-avian dinosaurs; mammals diversify in the aftermath.
On these timelines: The Age of Dinosaurs, Master
More from The Age of Dinosaurs
- Tyrannosaurus rex (68000000 BCE)
- Mesozoic Era (252000000 BCE)
- Paleozoic Era (538800000 BCE)
- Jurassic Period (201000000 BCE)
- Cretaceous Period (145000000 BCE)
- Triassic Period (252000000 BCE)
- Archaeopteryx and the first birds (150000000 BCE)
- Permian Period (299000000 BCE)
Around 66000000 BCE
- Triceratops (68000000 BCE)
- Ankylosaurus (68000000 BCE)