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Spirifer duplicostatus

Spirifer duplicostatus

SKU: CABR 6.0
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A fine, large complete specimen with both valves, showing both umbos, the hinge line, intererea, delthyrium, strong dorsal fold and ventral sulcus, parasulcate anterior commissure, many lateral plications and some fine concentric growth lamellae. From Derbyshire.

Size: 60 mm x 46 mm