Monthly Archives: January 2017

Wooster’s Fossil of the Week: Ammonite septa from the Upper Cretaceous of South Dakota

This week we have an ammonite from the Pierre Shale (Upper Cretaceous, Campanian-Maastrichtian) of southwestern South Dakota. It was collected on a wonderful field expedition in June 2008 with my friend Paul Taylor (The Natural History Museum, London) and my … Continue reading

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Wooster’s Fossils of the Week: Revisiting a pair of hyoliths from the Middle Ordovician of Estonia

We met these modest internal molds of the mysterious hyoliths about five years ago. With a dramatic new development in hyolith studies, they are worth seeing again. These fossils are internal molds (the sediment that filled the shell) of of … Continue reading

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Wooster’s Fossils of the Week: New review paper on architectural design of trace fossils

Last year my friend Luis Buatois led a massive project to review essentially all trace fossil invertebrate ichnogenera (523!) to place them in a series architectural design categories (79). This is a new way to assess patterns of ichnodisparity (variability … Continue reading

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Wooster’s Fossils of the Week: Upper Ordovician brachiopods and bryozoans from paleontology class collections

Last semester the Invertebrate Paleontology class at Wooster had its annual field trip into the Upper Ordovician of southern Ohio. We had a great, if a bit muddy, time collecting fossils for each student’s semester-long project preparing, identifying, and interpreting … Continue reading

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