Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
Phanerozoic eon | Yes | No | No | No |
Cenozoic era | Yes | No | No | No |
Phanerozoic eon (noun) | Cenozoic era (noun) |
---|---|
the period from about 540 million years ago until the present, a period when abundant life existed | approximately the last 63 million years |