Platystrophia Species by Formation
Indiana - Kentucky - Ohio
Index fossil species in bold text
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you must have Excel to view the chart
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.
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