This is because it favours unstable sandy sediments and subaqueous dunes tend to move over time.

Also, fossil traces remain of organisms that left their mark in the sandy sediments some 500 years ago.

Whatever actually took place, not long after the incident, the water level began to rise, covering the tracks with sandy sediments before the mud had dried.

It carries mainly sandy sediments, as can be seen after rainfall.

It grows on muddy to sandy sediments (even among rocks), mostly below low tide, often forming large meadows.

It is found off the coasts of north west Europe where it lives buried in sandy sediments.

The sandy sediment was reworked by frequent changes to sea level.

These bivalves normally live under the surface of sandy and muddy sediments, in the neritic zone.

Fine sandy sediments deposited in the dammed water are known as glacial fluvial deposits.

They can dig relatively fast through sandy sediments.