Tag Archives: Ordovician

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

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

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 …

… 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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Conulariid and trepostome bryozoan symbiosis in the Upper Ordovician of Estonia

A new paper is just out in which all the characters have been covered previously in this blog, but not as parts of a single story. It describes an interprets the relationship between the mysterious conulariids and trepostome bryozoans in … Continue reading

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New paper on bryoimmuration and taphonomic engineering

I’m pleased to link to a new paper that has just appeared in the journal Lethaia. My wonderful coauthors are Caroline Buttler (National Museum Wales) and Paul Taylor (Natural History Museum, London). The paper explores the role calcitic bryozoans play … Continue reading

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Wooster’s Invertebrate Paleontology class at work

Wooster, Ohio — The Invertebrate Paleontology class at Wooster set to work this afternoon on the excellent fossils they collected at the beginning of last week. They had already washed them carefully, using soft brushes and soap, and now were … Continue reading

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2018 Invertebrate Paleontology field trip — with the Ghost of Gordon

The Invertebrate Paleontology class at Wooster had its annual field trip today to the Upper Ordovician (Katian) Cincinnati Group (Upper Whitewater Formation) in eastern Indiana. The weather looked terrible as the remnant of Tropical Storm Gordon worked its way into … Continue reading

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Wooster and Ohio State Paleontologists in Tallinn, Estonia

Tallinn, Estonia — This morning Bill Ausich (Ohio State University) took the bus from Tartu to Tallinn to finish one more research task and then prepare for the long journey home. Above is the view from my hotel room towards … Continue reading

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Last day at the Tartu Natural History Museum, and a visit to a grim museum

Tartu, Estonia — Bill Ausich and I started our last full day in this city at the University of Tartu Natural History Museum, finishing our work with the marvelous Mare Isakar, pictured above. Mare quickly found the specimens we needed, … Continue reading

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Last day in the University of Tartu Geology Department — and a great garden party

Tartu, Estonia — As a sign we’re near the end of our work in Tartu, there are no crinoids in this post. Instead, above is an Ordovician bryozoan from Estonia that encrusted the aragonitic shell of a nautiloid. The aragonite … Continue reading

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