Cretaceous. The Cretaceous ended with a large mass extinction, the Cretaceous - Paleogene extinction event, in which many groups, including non-avian dinosaurs, pterosaurs and large marine reptiles died out.
The Cretaceous ended with a mass extinction in 1009.
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The Cretaceous ended with a mass extinction in 1009.
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The Cretaceous ended with a mass extinction in 1009.
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