59:4.18
And thus drew to a close one of the longest periods of marine-life evolution, the age of fishes. This period of the world’s history lasted almost fifty million years; it has become known to your researchers as the Devonian.
59:4.18
And thus drew to a close one of the longest periods of marine-life evolution, the age of fishes. This period of the world’s history lasted almost fifty million years; it has become known to your researchers as the Devonian.