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Calycoceras naviculare

Calycoceras naviculare

SKU: CEN 4.0
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A very fine, wholly septate internal mould developed on both sides with matrix in the umbilicus, showing the sutures in excellent relief. In the early stage of the last whorl the secondaries pass uninteruptedly over the venter and in the later stage they become weaker and more more tuberculate forming a smooth band. From Humble Point, S Devon.

Size: 114 mm in diameter.