Definition from Wiktionary, the free dictionary
Mesoarchean (not comparable)
- (geology) Of a geologic era within the Archaean eon from about 3200 to 2800 million years ago; stromatolites have existed from this time.
of a geologic era from about 3,200 to 2,800 million years ago
- (geology) The era from 3,200 Ma to 2,800 Ma.
era 3,200-2,800 Ma