Definition of tertiary period Tertiary period
We found 1 definitions of tertiary period from 1 different sources.
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What does tertiary period mean?
WordNet
Noun |
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| tertiary period - from 63 million to 2 million years ago | ||
| Tertiary, Tertiary period | ||
| age of mammals, cenozoic, cenozoic era approximately the last 63 million years | ||
| pliocene, pliocene epoch from 13 million to 2 million years ago; growth of mountains; cooling of climate; more and larger mammals | ||
| miocene, miocene epoch from 25 million to 13 million years ago; appearance of grazing mammals | ||
| oligocene, oligocene epoch from 40 million to 25 million years ago; appearance of sabertoothed cats | ||
| eocene, eocene epoch from 58 million to 40 million years ago; presence of modern mammals | ||
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