Calm marine deposit main content.

Calm marine deposit

Calm Marine Deposit Specimen 1 AMNH/R.Mickens

Exhibition Text

The Kaibab Limestone was deposited as organic carbonate fossil fragments, sand grains, and mud 260 million years ago in a shallow, quiet ocean. The fossil remains of brachiopods and sponges that lived at the bottom of this ocean can be seen in the samples before you.