Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
Tertiary period | Yes | No | No | No |
Oligocene epoch | Yes | No | No | No |
Tertiary period (noun) | Oligocene epoch (noun) |
---|---|
the period from 63 million to 2 million years ago | from 40 million to 25 million years ago; appearance of sabertoothed cats |