Ineffable suggestions of a vague, ethereal beyondness

splashed bituminous drops on paving slabs; photo

It looked like a radiate, but was clearly something more. It was partly vegetable, but had three-fourths of the essentials of animal structure. That it was marine in origin, its symmetrical contour and certain other attributes clearly indicated; yet one could not be exact as to the limit of its later adaptations.

At the Mountains of Madness, by H. P. Lovecraft

Deep-level specimens of rock and soil