Daily Archives: March 4, 2012

Wooster’s Fossil of the Week: an encrusted nautiloid (Upper Ordovician of Kentucky)

Two fossils this week in our series. The large segmented cone is a bisected nautiloid cephalopod from the Upper Ordovician of northern Kentucky. The original shell (made of the mineral aragonite) has been dissolved away, leaving the sediment that filled … Continue reading

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