Its six-foot wings spanned continents; their beats marked eons of geologic time.

For a long geologic time the land was low and swampy.

Little is known about the transformation of biosignatures during diagenesis over geologic time.

In a moment of geologic time, they will form white limestone.

Over geologic time spans, water passing through soil leaches or removes plant nutrients.

But in time, in geologic time, it all comes back.

The sun set behind wooded mountains, long wave-lines raised far back in geologic time.

And should biologic time run out and some plastics remain, there is always geologic time.

On the scale of geologic time, a cliff is as permanent as a snow bank.

In geologic time, the beds are a part of the Oligocene epoch of the Cenozoic era.

However, a calibrated and co-ordinated geologic time scale is needed to try to piece together Earth's history.

It is true that palæontology gives direct testimony about the evolutionary succession of animals in geologic time.

Things aren't looking great for our planet but let's face it, I'm not living on geologic time.

For an aspect of nature that unfolds on geologic time, Earth's climate seems like it's moving pretty fast.

But the question of hazard to the race of man in geologic time is quite a different one.

We can sound the abysses of astronomic space easier than we can sound the abysses of geologic time.