![Costonia ultima](http://www.geoed.co.uk/cdn/shop/products/pictrilonew_0c7ea3a1-834f-4cb5-980b-51f2d94cbdbf_{width}x.png?v=1584012908)
A very fine complete internal mould in excellent relief showing the cephalic fringe and pit rows very clearly. The pygidium is flexed downwards at 90 degrees. From Rorrington, Shropshire, UK.
Size: 17mm by 18mm on block 35mm by 40mm
Size: 17mm by 18mm on block 35mm by 40mm