Platystrophia Species by Formation
Indiana - Kentucky - Ohio
Index fossil species in bold text


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Those of you that have collected Platystrophia brachiopods that are so abundant in the Upper Ordovician of SE Indiana, central Kentucky and SW Ohio, I have created an Excel spreadsheet that lists the species by formation. A few are index fossils. Only a hand full span 3 or more formations.

The data is from Steven Holland's Cincinnatian Fossils and Stratigraphy web site that was compiled from a variety of sources published over the past 130 years.

It would be fun to post photos of the various species. Beyond the common species, most images are hard to find. I have P. acutiliriata, P. cypha, P. laticostata and P. ponderosa.

Alan Goldstein

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