Tag Archives: Ordovician

The Ordovician Bioclaustration Revolution: A new paper

Mark Wilson June 6, 2023 8:08 am

Bioclaustration is the process by which an organism is embedded within the growing skeleton of another. Bioclaustrations are fascinating in the fossil record because they give direct information about how two or more organisms lived together in the ancient past … Continue reading →

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A new paper on brachiopod symbiosis in the Early Paleozoic

Mark Wilson May 20, 2023 1:19 pm

My Estonian colleague and friend Olev Vinn and I have been working for many years on examples of parasitism recorded in the fossil record. For the last couple of years we have been summarizing the data and assessing paleoecological and … Continue reading →

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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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