Tag Archives: Indiana

Wooster’s Fossil of the Week: Bryozoan bored and bryozoan boring in the Upper Ordovician of Indiana

Mark Wilson March 16, 2014 1:21 am

This week and next we will highlight fossils collected during our brief and successful expedition to the Upper Ordovician (Cincinnatian) of Indiana (with Coleman Fitch ’15) and Kentucky (with William Harrison ’15). We found what we needed to pursue some … Continue reading →

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Ordovician bioerosion and encrustation project begins

Mark Wilson March 9, 2014 6:37 pm

RICHMOND, INDIANA–Meet Coleman Fitch (’15) standing on the iconic outcrop of the Whitewater Formation (Upper Ordovician) on Route 27 about a mile south of Richmond (C/W-148; N 39.78722°, W 84.90166° — which has a nice Google Maps street view). This … Continue reading →

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Wooster paleontologists begin a new field season

Mark Wilson March 8, 2014 8:30 pm

RICHMOND, INDIANA–This is the first day of what upper midwesterners hilariously call “spring break”, so it is time to get some students in the field. I can’t say this is the first Wooster geology fieldwork of the year because that … Continue reading →

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Wooster’s Fossil of the Week: A tubeworm-encrusted parasitic gastropod (Silurian of Indiana)

Mark Wilson February 16, 2014 1:26 am

Last week three Wooster geology students and I visited Ken Karns, an enthusiastic citizen scientist who has developed an extraordinary fossil collection in his home in Lancaster, Ohio. Ken is a man of prodigious energies and skills as he not … Continue reading →

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Wooster’s Fossils of the Week: Bioclaustration-boring structures in bryozoans from the Upper Ordovician of the Cincinnati region

Mark Wilson February 9, 2014 1:36 am

Another bioerosion mystery from those fascinating Upper Ordovician rocks around Cincinnati. Above you see a flat, bifoliate trepostome bryozoan (probably Peronopora) with pock holes scattered across its surface. At first you may think, after reading so many blog posts here, … Continue reading →

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Wooster’s Fossil of the Week: Tubular drillholes (Upper Ordovician of the Cincinnati Region)

Mark Wilson April 28, 2013 1:59 am

This is one of the simplest fossils ever: a cylindrical hole drilled into a hard substrate like a skeleton or rock. The above image is of a hardground (cemented carbonate seafloor) from the Upper Ordovician of northern Kentucky with these … Continue reading →

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Wooster’s Fossil of the Week: A bryozoan etching (Upper Ordovician of Indiana)

Mark Wilson February 24, 2013 1:27 am

Another trace fossil of a sort this week. Above you see the dorsal valve exterior of a strophomenid brachiopod from the Upper Ordovician of southeastern Indiana. Across the surface is a network of grooves looking a bit like a spider … Continue reading →

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Wooster’s Fossil of the Week: A very thin coral from the Upper Ordovician of Indiana

Mark Wilson February 3, 2013 1:50 am

What we have above is a heliolitid coral known as Protaraea richmondensis Foerste, 1909. It has completely encrusted a gastropod shell with its thin corallum. Stephanie Jarvis, a Wooster student at the time and now a graduate student at Southern … Continue reading →

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Wooster’s Fossil of the Week: A conulariid from the Upper Ordovician of Indiana

Mark Wilson January 6, 2013 1:03 am

This week’s fossil is not technically impressive: it is a rather modestly preserved conulariid from the Waynesville Formation of southern Indiana (location C/W-111). It is notable because it is one of the very few conulariids I’ve found in the Ordovician, … Continue reading →

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Wooster’s Fossil of the Week: A horn coral from the Upper Ordovician of Indiana

Mark Wilson December 9, 2012 1:34 am

This week’s fossil is a very common one from the Whitewater Formation (Richmondian, Upper Ordovician) exposed near Richmond, Indiana. It was collected, along with hundreds of other specimens, during one of many Invertebrate Paleontology field trips to an outcrop along … Continue reading →

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