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Tag Archives: Jurassic
Wooster’s Fossils of the Week: barnacle borings (Middle Jurassic of Israel)
Tiny little trace fossils this week in a Jurassic crinoid stem from the Matmor Formation of the Negev Desert. They are borings produced by barnacles, which are sedentary crustaceans more typically found in conical shells of their own making. These … Continue reading
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Tagged Fossil of the Week, fossils, ichnology, Israel, Jurassic
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Wooster’s Fossil of the Week: Ancient shrimp burrows (Middle Jurassic of Israel)
This week we have a trace fossil, the burrow Thalassinoides. It is represented by one of my favorite images, reproduced above, showing a very large Thalassinoides suevicus in the Zohar Formation (Middle Jurassic, Callovian) of Makhtesh Qatan in the Negev … Continue reading
A geological and historical tour of the Polish Jura
SOSNOWIEC, POLAND–A most memorable day traveling through part of the Polish Jura with Michał Zatoń and his delightful family of his wife Aneta and son Tomasz (4 and a half years old). The Polish Jura, also known as the Kraków-Częstochowa … Continue reading
A delightful day in the Jurassic of Polish Silesia
SOSNOWIEC, POLAND–It could not have been a better day for field work: warm with a light, cooling breeze and plenty of leafy green shade. Our team consisted of me and three Polish scientists: Michał Zatoń and Wojciech Krawczyński (I work … Continue reading
Quality time with a Polish microscope
SOSNOWIEC, POLAND–A day in the lab with my colleague Michał Zatoń at the University of Silesia. We sorted through two very different paleontological problems with a microscope and a lot of hand waving. The first task was to come up … Continue reading
Wooster’s Fossil of the Week: Coated snails! (Middle Jurassic of France)
In 1988 I had my first visit to France, hosted by my English friend Tim Palmer. We explored Bathonian (Middle Jurassic) limestones in Normandy tracking looking at hardgrounds and other hard substrates. Along the way we stopped in a quarry … Continue reading
Crinoid success
MITZPE RAMON, ISRAEL–One of our missions on this expedition to Israel is to find more and better examples of a distinctive crinoid in the Middle Jurassic Matmor Formation. Crinoids are stemmed echinoderms with a very long geological history, dating back … Continue reading
First field day: Makhtesh Gadol (A large bowl of geological delights)
MITZPE RAMON, ISRAEL–Today Will Cary, Yoav Avni (our friend from the Geological Survey of Israel) and I worked in the northern end of Makhtesh Gadol (“the large crater”). This geomorphic feature looks a bit like an oblong impact crater, but … Continue reading
Wooster’s Fossil of the Week: A scleractinian coral (Middle Jurassic of Israel)
In advance of my next field trip to Israel (watch this space!), our highlighted fossil this week is the scleractinian coral Microsolena, a genus named by the French naturalist Jean Vincent Félix Lamouroux in 1821. The specimen above was collected … Continue reading
Wooster’s Fossil of the Week: Oyster balls! (Middle Jurassic of Utah)
The technical term is ostreolith, but “oyster ball” is much more descriptive. These fossils are found by the thousands in the Carmel Formation (Middle Jurassic) in southwestern Utah. As far as I know, this is the only place they’ve ever … Continue reading