Geological periods
Dinosaurs lived through the Mesozoic Era, from about 252 to 66 million years ago. Geologists split it into three periods, each divided into early, middle and late epochs. Pick a slice of time to see who lived then.
Triassic
251.9–201.4 million years ago · 2 dinosaurs
Boundaries and colour from the ICS International Chronostratigraphic Chart v2023/09.
Jurassic
201.4–145 million years ago · 11 dinosaurs
Boundaries and colour from the ICS International Chronostratigraphic Chart v2023/09.
Cretaceous
145–66 million years ago · 37 dinosaurs
Boundaries and colour from the ICS International Chronostratigraphic Chart v2023/09.