Tag Archives: Carboniferous

Sedimentology & Stratigraphy class in Wooster Memorial Park. Watch this space!

This morning Wooster’s Sedimentology & Stratigraphy class visited Wooster Memorial (“Spangler”) Park for some field experience. A few of the students are shown above exploring a magnificent glacial deposit. I never did get a photo with all 21 students in … Continue reading

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Wooster’s Fossil of the Week: A crinoid stem internal mold from the Lower Carboniferous of Ohio

The Biology Department at The College of Wooster is in the midst of a massive move in advance of the construction of the new Ruth Williams Hall of Life Science. The staff has been combing through old specimen collections, giving … Continue reading

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Wooster’s Fossil of the Week: A blastoid from the Lower Carboniferous of Illinois

It is sometimes hard to believe that exquisite fossils such as the above are sometimes very common. The above is a theca of the blastoid Pentremites godoni (DeFrance, 1819) found in the Lower Carboniferous (Mississippian) of Illinois. (Thanks to expert … Continue reading

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Wooster’s Fossil of the Week: A conulariid revisited (Lower Carboniferous of Indiana)

This summer I’ve been updating some of the photos I placed in the Wikipedia system (check them out here, if you like; free to use for any purpose). I was especially anxious to replace a low-resolution image I had made … Continue reading

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Wooster’s Fossil of the Week: A chaetetid demosponge from the Upper Carboniferous of southern Nevada

I collected this lump of a specimen during my dissertation research in the Bird Spring Formation (Carboniferous-Permian) of southern Nevada. It was found in a richly-fossiliferous Upper Carboniferous (Moscovian) portion near Mountain Springs Pass, which is about 40 km southwest … Continue reading

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Wooster’s Fossil of the Week: A molded brachiopod from the Lower Carboniferous of Ohio

We haven’t had a local fossil featured on this blog for awhile. Above is an external mold of the spiriferinid brachiopod Syringothyris typa Winchell, 1863, from the Logan Formation (Lower Carboniferous, Osagean, about 345 million years old) of southeastern Wooster, … Continue reading

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Wooster’s Fossils of the Week: Upper Carboniferous seed casts from northeastern Ohio

We haven’t had a paleobotanical fossil of the week for awhile, so here are a couple of nice seed casts from the Upper Carboniferous Massillon Sandstone exposed near Youngstown, Ohio. They fall within the “form genus” Trigonocarpus Brongniart 1828. A … Continue reading

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An Epic Geologic Competition in Cuyahoga Valley National Park

VIRGINIA KENDALL, CUYAHOGA VALLEY NATIONAL PARK (CVNP) — What an absolutely awesome day for geology in the field!!  One of my geologic mentors once told me that “every day in the field is a day of vacation”, and today proved … Continue reading

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The geological setting of Fort Necessity, Pennsylvania

On July 3, 1754, colonial lieutenant Colonel George Washington fought and lost a small battle on this site in southwestern Pennsylvania. He and his 400 men had built this makeshift fort about a month before in anticipation of an attack … Continue reading

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Wooster’s Fossil of the Week: A crinoid-rich Lower Carboniferous siderite concretion (part III — those crinoids had company)

The last installment of our analysis of a Lower Carboniferous fossiliferous siderite concretion given to the department by Sam Root. In part I we looked at the crinoid stems and calices on the outside and discuss the formation of siderite … Continue reading

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