Daily Archives: April 29, 2012

Wooster’s Fossil of the Week: the classic bioclaustration (Upper Ordovician of Ohio)

We’re looking at two fossils above. One is the bryozoan Peronopora, the major skeletal structure. The second is the odd series of scalloped holes in its surface. These are a trace fossil called Catellocaula vallata Palmer and Wilson 1988. They … Continue reading

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