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Definition of Tertiary period
1. Noun. From 63 million to 2 million years ago.
Exact synonyms: Tertiary
Group relationships: Age Of Mammals, Cenozoic, Cenozoic Era
Terms within: Pliocene, Pliocene Epoch, Miocene, Miocene Epoch, Oligocene, Oligocene Epoch, Eocene, Eocene Epoch, Paleocene, Paleocene Epoch
Generic synonyms: Geological Period, Period
Group relationships: Age Of Mammals, Cenozoic, Cenozoic Era
Terms within: Pliocene, Pliocene Epoch, Miocene, Miocene Epoch, Oligocene, Oligocene Epoch, Eocene, Eocene Epoch, Paleocene, Paleocene Epoch
Generic synonyms: Geological Period, Period