Tag Archives: bioerosion

Who knew that crinoids could be boring? A possible bioeroding crinoid attachment structure from the early Silurian of Estonia (new paper)

Mark Wilson August 20, 2022 4:17 pm

Our hard-working and observant Estonian colleagues (Olev Vinn and Ursula Toom) recently made a remarkable discovery among Estonian early Silurian fossils: an attachment structure of a stalked crinoid that apparently bioeroded its way into a calcitic stromatoporoid skeleton. There’s a … 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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Bored marbles, slate mines, and a castle in North Wales

Mark Wilson June 12, 2018 6:12 am

Aberystwyth, Wales — Let’s start with the castle as my tour of Wales with Tim and Caroline Palmer continues. Above is the storied Harlech Castle in North Wales. It was built of sandstone blocks by Edward I in the 13th … Continue reading →

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A rainy day in the Mainz Basin

Mark Wilson August 12, 2010 3:49 pm

OPPENHEIM, GERMANY–I want this termed Wilson’s Law: “The amount of mud encountered at an outcrop is inversely proportional to the quality of the fossils found.” Maybe it is my desert heritage, but I absolutely detest mud on my boots. Especially … Continue reading →

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Wooster Geologist in The Netherlands

Mark Wilson August 8, 2010 4:37 pm

MAASTRICHT, THE NETHERLANDS–This is the first day of the International Bryozoology Association post-conference field trip. We took a train south from Kiel to Hamburg, Germany, and then connected with another train to Cologne. After spending a half-hour at the Cologne … Continue reading →

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The last of Scorpion Wash

Mark Wilson June 11, 2010 12:05 pm

MITZPE RAMON, ISRAEL — The 2010 Wooster Geology Israel team finished its work today in the Upper Cretaceous rocks at our northern locality, Wadi Aqrav.  We measured several dozen cobbles from the base of the Menuha Formation, and then collected … Continue reading →

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Which came first?

Mark Wilson May 27, 2010 8:24 pm

NEW ALBANY, MISSISSIPPI — The Cretaceous oyster above was collected from the Coon Creek Beds of the Ripley Formation (Upper Cretaceous) near Blue Springs, Mississippi.  The holes are borings called Entobia which were produced by clionaid sponges which built a … Continue reading →

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Wooster Geologists in Alabama!

Mark Wilson May 20, 2010 8:49 pm

GREENVILLE, ALABAMA–We were told many times before this trip that we will find the people in the Deep South to be friendly.  This has been very much the case from the employees at the Atlanta airport to the young man … Continue reading →

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Wooster Geologist in Ohio!

Mark Wilson December 16, 2009 1:51 pm

CAESAR CREEK STATE PARK, OHIO–I’ve definitely extended my field season as far as possible.  (And what a season it has been.)  My last fieldwork at the end of this research leave was in Ohio, about three hours south of Wooster.  … Continue reading →

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A very bored Permian brachiopod

Mark Wilson November 15, 2009 11:29 am

COLLEGE STATION, TEXAS–I never get tired of that too-obvious joke. I found the above productid brachiopod on the last outcrop of our little Texas expedition. It has been drilled by barnacles, which leave a distinctive slit-shaped hole with a tiny … Continue reading →

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