Eratosthenian

English

Pronunciation

• IPA^(key): /ˌɛɹətəsˈθiːniən/, /ɛˌɹætəsˈθiːniən/

Proper noun

Eratosthenian

1. The epoch in the lunar geologic timescale that occurred between 3200 million and 1100 million years ago.

References

• Lunar geologic timescale on Wikipedia.Wikipedia