Tag Archives: Jurassic

Twisty little encrusting tubeworms: A new paper describes two new Jurassic spirorbin species, pushing back the origin of the group and giving us a nice paleoecological evolution narrative.

Mark Wilson May 30, 2024 10:26 am

Several of my colleagues and I have been studying the fossil records of tubeworms for almost three decades now. We find them especially interesting because they are often beautifully preserved on hard substrates like shells, rocks and hardgrounds. They represent … Continue reading →

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A new paper on the Middle Jurassic paleoecology of southern Israel

Mark Wilson February 20, 2023 3:35 pm

I am delighted to announce that a new paper has appeared in the journal Lethaia on Middle Jurassic paleoecology in southern Israel. The senior author is Yael Leshno Afriat, and it was part of her PhD dissertation at Hebrew University … Continue reading →

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Wooster’s Fossils of the Week: Lingulid brachiopod trace fossils from the Middle Jurassic Carmel Formation of southwestern Utah

Mark Wilson July 7, 2022 12:48 am

This is a short trace fossil story with two disappointments, one much more than the other. It involves trace fossils made by lingulid brachiopods, a marine invertebrate group with a very long geological history. The earliest appeared in the Cambrian, … Continue reading →

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Wooster’s Team Utah 2022 Fieldwork

Mark Wilson May 29, 2022 5:29 am

This is the index page for Wooster’s Team Utah 2022 expedition (May 20-29, 2022). The primary goal of this fieldwork was to provide data and samples for the Independent Study theses of Lucie Fiala (left) and Shipei (Vicky) Wang (right). … Continue reading →

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A culture and nature day for Team Jurassic Utah 2022

Mark Wilson May 27, 2022 5:27 am

Our field work is now done, so we had a day of cultural and natural sites. Our morning started with a visit to the Visitor’s Center at the LDS Temple in St. George. There the students learned at least one … Continue reading →

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Jackson Peak section: Another gnatty adventure

Mark Wilson May 26, 2022 5:26 am

This morning the Wooster Geologists visited the westernmost exposure of the lower Carmel Formation at Nielson’s (1990) Jackson Peak section. Nick and Vicky are shown above on the road towards the conical Jackson Peak in the background. The site was … Continue reading →

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Up the steep slopes for a trace fossil reward in Dammeron Valley

Mark Wilson May 25, 2022 5:25 am

Today Team Utah 2022 climbed the outcrops in Dammeron Valley, north of St. George, to collect trace fossils from the Co-op Creek Limestone Member of the Carmel Formation (Middle Jurassic). It was a bit of a slog up the rubbly … Continue reading →

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Wooster geologists serve their time in Buggy Gulch

Mark Wilson May 24, 2022 5:24 am

Many veterans of the Wooster Geology expeditions to southwestern Utah will remember the insatiable, abundant, nearly overwhelming biting gnats that occasionally proliferated during our fieldwork. We’ve suffered them each day, but this was the worst experience thus far, mainly because … Continue reading →

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Back to the Eagle Mountain Ranch and its magnificent exposures

Mark Wilson May 23, 2022 5:23 am

One of my favorite Jurassic outcrops in all the world is found on the Eagle Mountain Ranch north of Gunlock, Utah (locality C/W-142; EMR). It has an exposure of the Carmel Formation with the perfect orientation to produce fossils weathered … Continue reading →

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Second field day in SW Utah Jurassic: Wooster geologists begin their projects

Mark Wilson May 22, 2022 5:22 am

During another beautiful day in southwestern Utah, Team Utah 2022 began to collect field data and specimens. We started in Manganese Wash with Lucie’s project, which involves the stratigraphy and paleoenvironments associated with the transition from the lower Co-Op Creek … Continue reading →

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