Daily Archives: August 21, 2011

Wooster’s Fossil of the Week: A trilobite hypostome (Upper Ordovician of southern Ohio)

We had a familiar trilobite last week, so this week we’ll look at a poorly-known part of a trilobite: the hypostome. Above is an incomplete forked, conterminant hypostome of the large trilobite Isotelus. (Isotelus, by the way, is the state … Continue reading

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