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Category Archives: Uncategorized
Wooster’s Fossils of the Week: Another molluscan assemblage from the Miocene of Maryland (side two)
Last month we featured a fossil slab kindly donated by Dale Chadwick of Lancaster, Pennsylvania. Dale is an enthusiastic fossil collector with a very useful website for his favorite sites and specimens. I promised to show the other side of … Continue reading
Wooster’s Fossils of the Week: Trepostome bryozoans, burrow systems, and bedding features in an Upper Ordovician limestone from southeastern Minnesota
One of the little mysteries on the recent Minnesota research trip by Wooster students, faculty and staff is the origin of thin limestone beds in the middle of the thick shales of the Decorah Formation (Upper Ordovician). How did such … Continue reading
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Tagged Fossil of the Week, fossils, ichnology, limestone, Minnesota, Ordovician
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Wooster’s Fossil of the Week: A mytilid bivalve from the Middle Jurassic of southern Israel
This week’s specimen comes from one of my favorite fossiliferous units: the Matmor Formation (Middle Jurassic, Callovian) of Makhtesh Gadol in southern Israel. I’ve been delighted by the fossils and lithologies of the Matmor since 2003. This particular fossil is … Continue reading
Wooster Geologists in Minnesota
Four students, Geological Technician Nick Wiesenberg and Professor Mark Wilson (me!) have just completed eight days of geological fieldwork in the Upper Ordovician of southeastern Minnesota as part of Wooster’s Senior Independent Study program. The students are, from the left, … Continue reading
A visit to the Dalles of St. Croix in Wisconsin
Rochester, Minnesota — On its last day in the field, Team Minnesota had a geological trip to the Dalles of St. Croix in Interstate State Park, Wisconsin and Minnesota. It was beautiful, and we practically had the place to ourselves, … Continue reading
A wet cave and the Mighty Mississippi River
Rochester, Minnesota — Since Team Minnesota efficiently finished its fieldwork yesterday, we have two days before the students fly out of the Minneapolis-St. Paul airport. The good weather has given us a gift of time, so we’re using it like … Continue reading
Team Minnesota finishes its work (in Iowa, funny enough)
Rochester, Minnesota — We returned to Decorah, Iowa, today to measure and sample the Decorah Shale (Upper Ordovician) in its type locality. It was much drier here than on our last attempt! Above is the gray Decorah Shale topped by … Continue reading
Paleontological fieldwork in southeastern Minnesota
Rochester, Minnesota — It was a good day for fossil collecting on the Minnesota prairie. Above you see a handful of articulated orthid brachiopods collected by Nikki Bell at a quarry exposure near Rochester. This quarry has long been abandoned … Continue reading
The work begins
Rochester, Minnesota — Today we started collecting specimens and data for the Team Minnesota student Independent Study projects. We began with a long drive south to Decorah, Iowa, to measure a thick section of our Upper Ordovician target units at … Continue reading
Wooster’s Fossil of the Week: A new Late Ordovician bryozoan from Oklahoma
I am very pleased to introduce a new bryozoan genus and species recently described in the First View section of the Journal of Paleontology. Paul Taylor (Natural History Museum, London) and I present: “A new runner-like cyclostome bryozoan from the … Continue reading