Tag Archives: Ordovician

A new paper on symbiosis between brachiopods and bryozoans in the Late Ordovician of Estonia

Mark Wilson February 10, 2023 7:56 am

I’m pleased to announce another paper has appeared from our ongoing Estonian-German-American collaboration on symbiosis in the fossil record. The beautiful specimen above is the trepostome bryozoan Esthoniopora subsphaerica growing around a bioclaustration, forming a distinctive tube (Katian, Rakvere, northern … Continue reading →

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Paleoecology field trip to the Upper Ordovician of eastern Indiana: Haven’t done this for awhile!

Mark Wilson September 4, 2022 10:58 pm

Richmond, Indiana — Today Nick Wiesenberg (our invaluable geological technician), Brianna Lyman (my excellent Teaching Assistant), and I took the 15 students in the Paleoecology course to the fossiliferous Upper Ordovician of eastern Indiana (upper Whitewater Formation). It’s a location … Continue reading →

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Wooster’s Fossil of the Week: Encrusted strophomenid brachiopods from the Upper Ordovician of northern Kentucky (and the old concave-up or concave-down controversy)

Mark Wilson April 24, 2022 12:05 pm

After the delightful Joint North-Central and Southeastern Section Meeting of the Geological Society of America in Cincinnati this month, some of the Wooster Geologists visited a fossiliferous exposure of the Bellevue Formation (Upper Ordovician, Katian) along the Bullitsville Road in … Continue reading →

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Wooster geologists at the Joint North-Central and Southeastern Section Meeting of the Geological Society of America in Cincinnati

Mark Wilson April 9, 2022 1:25 pm

Cincinnati, Ohio —  This week Professor Wiles, Nick Wiesenberg and I attended the 2022 Joint North-Central and Southeastern meeting of the Geological Society of America in Cincinnati, about a three-hour drive south of Wooster. It was quite satisfying to attend … Continue reading →

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Model of a Biotic Hard Substrate Community: Paleoecology of Large Trepostome Bryozoans from the Upper Ordovician (Katian) of the Cincinnati Region, USA — The Independent Study project of Kate Runciman (’22)

Mark Wilson February 28, 2022 7:59 pm

Editor’s Note: Independent Study (IS) at The College of Wooster is a three-course series required of every student before graduation. Earth Sciences students typically begin in the second semester of their junior years with project identification, literature review, and a … Continue reading →

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New paper on predatory drill holes in Cambrian/Ordovician brachiopods (northern Estonia and northwest Russia)

Mark Wilson February 4, 2021 6:17 pm

Once again I’m proud to be on Olev Vinn’s team with this new article on predatory drill holes in Cambrian and Ordovician brachiopods. Predation in the fossil record is always interesting, especially in the early Paleozoic. Here is the abstract … Continue reading →

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A new paper describing and interpreting a new crinoid from the Upper Ordovician of Estonia

Mark Wilson November 7, 2020 5:55 pm

I am very pleased to announce that Lena Cole, Bill Ausich, and I have a new article that appeared (on a dramatic election day in the USA!) in Papers in Palaeontology: “A Hirnantian holdover from the Late Ordovician Mass Extinction: … Continue reading →

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New paper: “Chemical composition of carbonate hardground cements as reconstructive tools for Phanerozoic pore fluids”

Mark Wilson February 21, 2020 4:07 pm

My friend Paul Taylor and I are junior authors on a paper that has just appeared in the journal Geochemistry, Geophysics, Geosystems (“G-Cubed”) as an in press accepted manuscript. We’ll be the first to admit that it is a bit … Continue reading →

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A new paper on a cryptic crustoid graptolite from the Middle Ordovician of Estonia

Mark Wilson October 7, 2019 4:04 pm

I have long enjoyed exploring the Ordovician and Silurian rocks of Estonia with my Estonian friend Olev Vinn. We have done a lot of work together, and Estonia continues to provide fascinating fossils for our studies. Our circle of paleontologists … Continue reading →

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A continental heat wave won’t stop Wooster Geologists …

Mark Wilson July 18, 2019 7:35 pm

… but it will slow us down! Today Nick Wiesenberg, our excellent departmental technician, and I took a short day trip to southeastern Indiana to collect fossils for my upcoming Paleoecology course. It was in the middle of what may … Continue reading →

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