Lower Imbrian (original) (raw)
In the Lunar geologic timescale, the Lower Imbrian epoch occured between 3850 million years ago to about 3800 million years ago. It was followed by the Upper Imbrian epoch and preceded by the Nectarian.
In the Lunar geologic timescale, the Lower Imbrian epoch occured between 3850 million years ago to about 3800 million years ago. It was followed by the Upper Imbrian epoch and preceded by the Nectarian.