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Cretaceous · 145.0 – 66.0 Ma

Cretaceous fossil sites

The longest period of the Mesozoic, the Cretaceous saw the rise of flowering plants, modern bird groups, and the late dinosaur faunas including Tyrannosaurus and Triceratops. The period ends with the asteroid impact and K-Pg mass extinction.

Fossils typical of this period: dinosaurs, ammonites, mosasaurs, shark teeth, flowering plant fossils, K-Pg boundary clay.

22 fossil sites