Author Archives: Mark Wilson

About Mark Wilson

Mark Wilson is an emeritus 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 Geologists at the 2012 Senior Research Symposium

WOOSTER, OHIO–Six Wooster geology seniors presented their research to the campus and public this morning in Kauke Hall on the College of Wooster campus. They were among the first posters in the annual Senior Research Symposium in which Independen… Continue reading

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Wooster’s Fossil of the Week: a nestling bivalve (Pleistocene of The Bahamas)

This weathered and encrusted shell was pulled from a round hole bored in a Pleistocene reef (about 125,000 years old) exposed on San Salvador Island, The Bahamas. It is Coralliophaga coralliophaga (Gmelin 1791), a derived venerid bivalve (a type of &#8… Continue reading

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Wet and Cold Wooster Geologists in the Silurian of Central Ohio

DAYTON, OHIO–It was 37°F and raining this morning as three stalwart Wooster Geology students and I worked in a muddy quarry near Fairborn, Ohio (N 39.81472°, W 83.99471°). Our task was to scout out a beautiful exposure of the Brassfield &#8230… Continue reading

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Wooster’s Fossil of the Week: A scale tree root in its own soil (Upper Carboniferous of Ohio)

Last week a local man, Larry Stauffer, brought in the above fossil for identification and then kindly donated it to the department. It is part of the root system of Lepidodendron, the “scale tree” of the Carboniferous Period. What is &#8230… Continue reading

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Wooster’s Fossils of the Week: A calcareous sponge with a crinoid holdfast (Matmor Formation, Middle Jurassic, Israel)

The Class Calcarea of the Phylum Porifera is a group of sponges characterized by spicular skeletons made of calcium carbonate (calcite in this case). The spicules (small elements of the skeleton) are often fused together, causing the sponges to look &#… Continue reading

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Wooster’s Fossil of the Week: A spiriferinid brachiopod (Logan Formation, Lower Carboniferous, Ohio)

This brachiopod is one of the most common in the Logan Formation of Wooster, Ohio, so our students know it well from outcrops in Spangler Park and the occasional excavations in town. Four specimens of Syringothyris Winchell 1863 are visible … Con… Continue reading

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Wooster’s Fossils of the Week: Three cobble-dwelling oysters from the Upper Cretaceous of southern Israel

These fossils of the week, three well-worn cemented oysters, are highlighted to celebrate the final acceptance this past week of a manuscript that describes their geological setting and significance: Wilson et al., 2012 (see reference below). They are … Continue reading

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Wooster Geologists safely in the Tel Aviv airport

TEL AVIV, ISRAEL–Always a happy scene. After a long dark drive through the desert early this morning, and then the adventure of Tel Aviv traffic, Melissa and I are safely in Ben Gurion airport. We had a lot of questions … Continue reading &… Continue reading

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Last day of 2012 fieldwork in Israel by Wooster Geologists

MITZPE RAMON–Today we finished our exploration of the Upper Cretaceous near Mitzpe Ramon, and then met some old friends for a different project near Ar’arat an-Naqab in the northernmost part of the Negev. This gave me the chance to take &#8… Continue reading

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Nabataean water management in the northern Negev (circa 2nd Century BCE)

MITZPE RAMON, ISRAEL–We had an earlier post about water management techniques by Iron Age peoples in the northern Negev. Today during our last period of fieldwork on this trip we ran into a complex Nabataean system in a valley a … Continue … Continue reading

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