English dictionary
Phanerozoic eon
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
the period from about 5,400 million years ago until the present
Source: WordNet 3.0
English dictionary
Definitions, examples, synonyms and antonyms from WordNet 3.0.
the period from about 5,400 million years ago until the present
Source: WordNet 3.0