Tag Archives: Missouri

Wooster’s Fossil of the Week: A receptaculitid (Middle Ordovician of Missouri)

This week’s fossil is a long-standing paleontological mystery. Above is a receptaculitid from the Kimmswick Limestone (Middle Ordovician) near Ozora, Missouri. I think I found it on a field trip with Frank Koucky in the distant mists of my student … Continue reading

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