What is "megayear"

Usage examples of "megayear".

Some dragon that woke up every few hundred megayears and roared so loud it wiped the Galaxy clean of advanced life?

These were uncompromising lumps of hard, ancient sandstone protruding from the flat desert, extensively carved by megayears of water flows.

Trillions of intelligent beings, megayears of civilization, lay within each one, and over all the sum of the minds of each a wider consciousness, a god.

Volkov was surprised at the reaction until he remembered that the saur method of hunting, megayears established and ingrained, was to stampede herds of herbivorous dinosaurs off cliffs.

The biota of Mingulay, like that of all the other Earthlike planets of the Second Sphere, shared a common terrestrial ancestry but had, over megayears, diverged in unique and interesting ways.

Now let's see if encephalization has changed during the last megayear.

Now let’s see if encephalization has changed during the last megayear.

And he has every intention of staying young for that entire vast span – even into the endless petaseconds that might follow, although by then, megayears hence, he speculates that issues of neoteny will no longer interest him.

And as far as they're concerned, we are great lumbering spambots, corrupted servers, liable at any moment or any megayear to start turning out millions of pointless, slightly varied replicas of ourselves.

Should we stand aside and let evolution take its course on the chance that megayears hence intelligence might arise?