They will dominate a horizon that has only recently been cleared of the scars of coal mining (the last deep pit closed in 1978).

The 800-ton shell was buried on the site in a 40ft m deep pit.

Along this wall runs a very deep pit, dating from antiquity and which joins the embankment wall.

However, within 30 years the fortunes of the area, so tied to coal, followed the spectacular demise of deep pit mining.

The teeth are high-crowned and curved; one contains a deep cementum-filled furrow and the other at least one deep pit (infundibulum).