Tag Archives: Jurassic

Wooster’s Fossils of the Week: Remanié fossils in the Lower Cretaceous of south-central England

Mark Wilson August 22, 2014 1:55 am

The last two editions were about a bryozoan and borings from the Faringdon Sponge Gravels (Lower Cretaceous, Upper Aptian) of south-central England. This week we have some Jurassic fossils from the same unit. That sounds a bit daft at first … Continue reading →

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Wooster’s Fossil of the Week: A faulted oyster ball from the Middle Jurassic of Utah

Mark Wilson July 25, 2014 1:23 am

I’m returning this week to one of my favorite fossil types: the ostreolith, popularly known as the “oyster ball”. These were lovingly described in a previous blog entry, so please click there to see how they were formed and some … Continue reading →

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Wooster’s Fossil of the Week: A barnacle and sponge symbiosis from the Middle Jurassic of Israel

Mark Wilson July 4, 2014 1:19 am

[Programing note: Wooster’s Fossil of the Week is now being released on Fridays to correspond with the popular Fossil Friday on Twitter and other platforms.] This week’s fossil is again from the Matmor Formation (Middle Jurassic, Callovian) of southern Israel. … Continue reading →

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Castles in Poland I expect, but a desert?

Mark Wilson June 19, 2014 4:03 pm

SOSNOWIEC, POLAND — Today my colleague Michał Zatoń took me and his family (wife Aneta and son Tomasz) on a tour of the Polish Jura, an upland with spectacular exposures of Jurassic rocks and the castles who love them. Above is … Continue reading →

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Research begins in southern Poland

Mark Wilson June 16, 2014 4:49 pm

SOSNOWIEC, POLAND — On this beautiful day I began research at the University of Silesia with Michał Zatoń and Tomasz Borszcz in this impressive building. (It is reportedly the tallest Earth Science building in the world, although the Chinese are on … Continue reading →

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Wooster’s Fossil of the Week: A geopetal structure in a boring from the Middle Jurassic of Israel

Mark Wilson June 15, 2014 1:25 am

We have a very simple trace and body fossil combination this week that provides a stratigraphic and structural geologic tool. Above is a bit of scleractinian coral from the Matmor Formation (Middle Jurassic, Callovian) of Makhtesh Gadol in southern Israel. … Continue reading →

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Wooster’s Fossil of the Week: My favorite part of a crinoid (Middle Jurassic of Israel)

Mark Wilson June 1, 2014 1:14 am

In April of this year I completed my 11th trip to southern Israel for fieldwork in the Mesozoic. My heart warmed every time I saw these robust plates of the crinoid Apiocrinities negevensis, which was reviewed in a previous blog … Continue reading →

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Wooster’s Fossils of the Week: “Star-rock” crinoids from the Middle Jurassic of Utah

Mark Wilson May 18, 2014 1:53 am

This little slab of crinoid stem fragments comes from the Co-op Creek Member of the Carmel Formation (Middle Jurassic) exposed in northwestern Kane County, Utah. I collected it with my friend Carol Tang as we explored a beautiful encrinite (a … Continue reading →

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Wooster’s Fossil of the Week: One sick crinoid from the Middle Jurassic of Israel

Mark Wilson May 11, 2014 1:01 am

My first thought on seeing this distorted fossil was how much it evoked one of those Palaeolithic “Venus figurines“. It is certainly difficult to deduce that this is actually a crinoid column (or stem). It was found during my last … Continue reading →

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Last work of Team Israel, Matmor Division

Mark Wilson May 5, 2014 6:11 pm

WOOSTER, OHIO–Steph Bosch (’14) and Lizzie Reinthal (’14) volunteered to examine the Matmor Formation fossils I collected last month in Israel. Each fossil, most of which are crinoid ossicles, must be scanned under a microscope for tiny encrusters (especially bryozoans), … Continue reading →

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