Author Archives: Mark Wilson

About Mark Wilson

Mark Wilson is a Professor of Geology at The College of Wooster. He specializes in invertebrate paleontology, carbonate sedimentology, and stratigraphy. He also is an expert on pseudoscience, especially creationism.

Wooster’s Fossils of the Week: The tiniest of brachiopods (Middle Jurassic of Utah)

While preparing for this summer’s expedition to the Middle Jurassic of southwestern Utah, I found this specimen in our collection from the 1990s. You may be able to just make out the wedge-shaped outline of a mytilid-like bivalve with several … Continue reading
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Wooster’s Fossils of the Week: Bryozoan encrusting a bryozoan (Campanian of southwestern France)

Today’s post is in honor of Macy Conrad’s (Wooster ’18) poster at the annual meeting of the Geological Society of America, which was held earlier this week. It is also to recognize again the Scanning Electron Microscopy (SEM) genius of … Continue reading
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Wooster’s Fossils of the Week: Foraminifera clustered around a sponge boring (Campanian of southwestern France)

If all goes to plan, today I leave for the Annual Meeting of the Geological Society of America, held this year in Seattle, Washington. To mark the occasion, this week’s fossil is from a poster Macy Conrad (’18), Paul Taylor … Continue reading
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Wooster’s Fossils of the Week: “Ghosts” in the Upper Ordovician of Kentucky

This year Caroline Buttler (Department of Natural Sciences, Amgueddfa Cymru – National Museum Wales) and I had a great project describing a cave-dwelling fauna in the Upper Ordovician of northern Kentucky. We hope that work will appear soon in the … Continue reading
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Wooster’s Fossil of the Week: A terebratulid brachiopod from the Upper Cretaceous of southwestern France

Yes, we’ve had a run of French Cretaceous fossils here. This is because we’re in the midst of a major project stemming from summer fieldwork in the Type Campanian of southwestern France. The fossils are delicious, and they are before … Continue reading
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Wooster’s Fossils of the Week: An oyster reef from the Middle Jurassic of southwestern Utah

It was a pleasure to pull this massive specimen out of the cabinets, where it had been sitting for more than 20 years. It is a small reef of the oyster Liostrea strigilecula (White, 1877) from the Carmel Formation (Middle Jurassic) … Continue reading
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Wooster’s Fossil of the Week: Predatory trace from the Upper Cretaceous of southwestern France

One hole in a shell is unremarkable. Several in a repeating pattern is a story. Above is a right valve (exterior) of the oyster Pycnodonte vesicularis from the Campanian (Upper Cretaceous) of southwestern France. It was collected during our fantastic … Continue reading
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The annual Wooster Paleontology field trip to the Upper Ordovician (Fall 2017 version)

It’s not that I haven’t loved all my Invertebrate Paleontology classes, but the students this year are special because there are only ten of them. Lately I’ve had up to thirty students per class which is great for many reasons, … Continue reading
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Wooster’s Fossil of the Week: A rudist clam from the Upper Cretaceous of southwestern France

When we picked up this beautiful fossil in southwestern France this summer, Paul Taylor immediately predicted it would become a Wooster Fossil of the Week. Macy Conrad (’18), Paul and I were on our wonderful expedition in the Type Campanian … Continue reading
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Unknown fossils for the Invertebrate Paleontology class at Wooster

I start my Invertebrate Paleontology classes with an unknown fossil given to each student. I pick something I have enough examples of so that everyone gets the same species. As their first assignment, the students are asked to identify their … Continue reading
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