It was the first depiction of a scene from deep time to see even limited publication.

Recent studies have indicated conservation of molecular networks through deep evolutionary time.

From deep time, the female witch has identified a male cat as her familiar.

This became the first such scene from deep time to be widely circulated.

How difficult would it be to misplace whole epochs of deep time?

Now came another growl from the darkness, this time deep and heavy.

The geological or deep time of Earth's past has been organized into various units according to events which took place in each period.

He says the river cuts open the earth, and the deep time comes spilling out of it like blood.

Down here it's what I call deep time.

The question of deep time was something he needed to explore.