Phanerozoic — synonyms, definition
1. Phanerozoic (Noun)
2 synonyms
Phanerozoic aeon Phanerozoic eon
1 definition
Phanerozoic (Noun) — The period from about 540 million years ago until the present.
2 types of
aeon eon
3 parts
Age of Mammals Cenozoic Cenozoic era