Tag Archives: fossils

Wooster’s Fossil of the Week: An early bryozoan on a Middle Ordovician hardground from Utah

Mark Wilson October 10, 2014 1:25 am

Last week I presented eocrinoid holdfasts on carbonate hardgrounds from the Kanosh Formation (Middle Ordovician) in west-central Utah. This week we have a thick and strangely featureless bryozoan from the same hardgrounds. It is very common on these surfaces, forming … Continue reading →

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Wooster’s Fossils of the Week: Eocrinoid holdfasts on a Middle Ordovician hardground from Utah

Mark Wilson October 3, 2014 1:11 am

Back in the late 1980s and early 1990s, several students and I did fieldwork in the Middle Ordovician Kanosh Formation in west-central Utah. One year we were joined by my friend Tim Palmer of the University of Aberystwyth. Together, Chris … Continue reading →

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In the footsteps of Charles Darwin: Geological excursion into the Central Andes

Mark Wilson October 1, 2014 8:58 pm

MENDOZA, ARGENTINA–Today I had one of the finest geological field trips in my life. The scenery was stunning, the geology extraordinary, and the history deeply moving. Being able to share the experience with so many of my geologist friends, old … Continue reading →

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Nothing quite like the feeling of completing your presentation: Day 2 of the International Palaeontological Congress

Mark Wilson September 30, 2014 5:19 pm

MENDOZA, ARGENTINA–I promise, the images will be much more interesting in the next post! Today we concentrated on talks. I finally was able to deliver mine in the same session as Leif Tapanila above. It was a crowded little room, … Continue reading →

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The Fourth International Palaeontological Congress starts well

Mark Wilson September 29, 2014 6:24 pm

MENDOZA, ARGENTINA–After an excellent opening lecture last night by Dr. Beatriz Aguirre-Urreta (“Palaeontology in the Southern Hemisphere: Benchmarks in the History of Discovery and Research”), we got down to the technical talks today in the Mendoza Sheraton for the 4th … Continue reading →

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Wooster’s Fossil of the Week: A crinoid calyx from the Upper Ordovician of southern Ohio

Mark Wilson September 26, 2014 1:52 am

This week’s contribution from the Wooster collections will be short. If all is going well, as this is posted I’m on my way to the Fourth International Palaeontological Congress in Mendoza, Argentina. I hope to have a few posts from … Continue reading →

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Wooster’s Fossils of the Week: A nest of cornulitid tubeworms and friends from the Upper Ordovician of northern Kentucky

Mark Wilson September 19, 2014 1:27 am

This fascinating and complicated little cluster of cornulitid wormtubes was found by my current Independent Study student William Harrison while we were doing fieldwork near Petersburg, Kentucky. (Just down the road from the infamous Creation Museum, ironically.) It was collected … Continue reading →

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Wooster’s Fossils of the Week: The mysterious Paleozoic encrusters Ascodictyon and Allonema

Mark Wilson September 12, 2014 1:53 am

  The above pair of fossils are small sclerobionts commonly found on hard substrates in shallow marine sediments through much of the Paleozoic, especially the Silurian and Devonian. Paul Taylor and I have been studying them for a few years … Continue reading →

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Wooster’s Fossils of the Week: A hardground with rugose corals from the Upper Ordovician of southern Ohio

Mark Wilson September 5, 2014 1:36 am

The above slab is a carbonate hardground from the Liberty Formation (Upper Ordovician) of southern Ohio. Carbonate hardgrounds are cemented seafloors, so we’re actually looking at the hard rocky bottom of an Ordovician sea. I’ve long found the idea of … Continue reading →

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First Wooster paleontology field trip of the year: the glorious Ordovician of Ohio

Mark Wilson August 31, 2014 9:41 pm

Today the Invertebrate Paleontology class at The College of Wooster drove south to one of our favorite outcrops: the Waynesville, Liberty and Whitewater Formations (= Bull Fork Formation) at the emergency spillway in Caesar Creek State Park. I enjoy taking … Continue reading →

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