View north in the future Bredon Hill area in the time of the deposition of the Marlstone Rock Formation.
The Marlstone Rock Formation is sandy with iron rich (ferrunginous) limestones, shell fragments and ooids. This is indicative of shallower water conditions (just a metre or so at times), than the deeper waters of the preceding Charmouth Mudstone time, or the following Dyrham Formation. Finer sediments are usually indicative of deeper water conditions. The broken shells suggests the sea bed was within the reach of the turbulent base of storm waves.
The marine fauna includes Icthyosaurs, Plesiosaurs, belemnites, ammonites, crinoids, bivalves, gastopods and bony fish.