Tag Archives: Devonian

A visit to the Devonian of the Czech Republic. And then Prague, of course.

Liberec, Czech Republic — Today the IBA field party visited the Koněprusy area, including the Koněprusy Caves. Inexplicably I took no pictures, probably because I was trying not to bump my head in the wet and narrow passageways. Nearby is … Continue reading

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A new paper has appeared: A rugose coral – bryozoan association from the Lower Devonian of NW Spain.

I’m proud to be an author with my two Spanish colleagues, Consuelo Sendino and Juan Luis Suárez Andrés, of a paper just out in the latest issue of Palaeogeography, Palaeoclimatology, Palaeoecology (we call it “Palaeo-cubed”). I’ll let the abstract tell … Continue reading

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Birthplace of the Sandusky River

I’ve long appreciated river confluences where two flows join to make a third, “new” river. The most impressive confluence I’ve visited is where the Bhagirathi and Alaknanda Rivers meet to produce the iconic Ganges at Devprayag, India. (The second image … Continue reading

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Wooster’s Fossils of the Week: Bivalve escape trace fossils (Devonian and Cretaceous)

It is time again to dip into the wonderful world of trace fossils. These are tracks, trails, burrows and other evidence of organism behavior. The specimen above is an example. It is Lockeia James, 1879, from the Dakota Formation (Upper … Continue reading

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Wooster’s Fossil of the Week: Mysterious tentaculitids (Devonian of Maryland)

The sharp little conical fossils above are common Paleozoic fossils, especially in the Devonian. They are tentaculitids now most commonly placed in the Class Tentaculitoidea Ljashenko 1957. Tentaculitids appeared in the Ordovician and disappeared sometime around the end of the … Continue reading

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Wooster’s Fossil of the Week: A stromatoporoid (Middle Devonian of central Ohio)

Stromatoporoids are very common fossils in the Silurian and Devonian of Ohio and Indiana, especially in carbonate rocks like the Columbus Limestone (from which the above specimen was collected). Wooster geologists encountered them frequently on our Estonia expeditions in the … Continue reading

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Wooster’s Fossil of the Week: An atrypid brachiopod from the Devonian of Spain

Our featured fossil this week is another gift from brachiopod enthusiast Clive Champion of England. This fine specimen of Atrypa sp. was collected from the Middle Devonian (Lower Couvinian) exposed at El Pical, Leon, Spain. Atrypa is the emblematic genus … Continue reading

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Wooster’s Fossil of the Week: A mystery from the Middle Devonian of Ontario, Canada

This week’s fossil is a strange one. Mr. Darrell Ellis collected the above tiny specimen from the Hungry Hollow Member (Middle Devonian) at the famous Hungry Hollow location near Arkona, Ontario. (He also took this excellent photograph.) In the classic … Continue reading

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Five-Year Anniversary Edition of Wooster’s Fossil of the Week: A tabulate coral from the Devonian of northwestern Ohio

This post of Wooster’s Fossil of the Week marks five years of this feature. If you’re counting, that is 260 entries, with never a week missed. To celebrate, I’m returning to the very first fossil in the series, a beautiful … Continue reading

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Wooster’s Fossil of the Week: A fragmentary rostroconch from the Middle Devonian of Ohio

Not all of our featured fossils are particularly beautiful, or even entire, but they are interesting in some way. Above is the broken cross-section of a rostroconch mollusk known as Hippocardia Brown, 1843. It was found somewhere in Ohio by … Continue reading

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