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Tertiary period

Obsolete term for the geological period 66–2.58 million years ago

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Tertiary period

Obsolete term for the geological period 66–2.58 million years ago

The Tertiary ( TUR-shər-ee, US also TUR-shee-err-ee) is an obsolete geologic period spanning 66 million to 2.6 or 1.8 million years ago. The period began with the extinction of the non-avian dinosaurs in the Cretaceous–Paleogene extinction event, at the start of the Cenozoic Era, and extended to the beginning of the Quaternary glaciation at the end of the Pliocene Epoch.

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From Wikipedia

The Tertiary ( TUR-shər-ee, US also TUR-shee-err-ee) is an obsolete geologic period spanning 66 million to 2.6 or 1.8 million years ago. The period began with the extinction of the non-avian dinosaurs in the Cretaceous–Paleogene extinction event, at the start of the Cenozoic Era, and extended to the beginning of the Quaternary glaciation at the end of the Pliocene Epoch. The Tertiary has not been recognised by the International Commission on Stratigraphy (ICS) since the late 1980s, with the timespan of the Tertiary now being split into the earlier Paleogene and the more recent Neogene periods, though the term continues to be used in some scientific publications.

Text: Wikipédia, CC BY-SA 4.0. ·

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