Tag: Wisconsin
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2026 ESCONI Gem, Mineral, and Fossil Show – Preview #27: Rare Wisconsin Jellyfish from Marathon County, Wisconsin
Jellyfish, which have no hard parts, are very rare in the fossil record. This species Hiemalora stellaris was found in the Cambrian rocks of the Blackberry Hill Deposit of Marathon County, Wisconsin. Come on out tomorrow and it can be yours!
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WPR: A portal into underwater, prehistoric Wisconsin found in the heart of Waukesha County
Wisconsin Public Day has an article about fossils from Waukesha County, including a the oldest known leech in the fossil record. The fossil deposit is commonly referred to as the Waukesha Lagerstätte. A few years ago, researchers found the world’s oldest fossilized scorpion at the site. The Waukesha Biota, also known as the Waukesha Lagerstätte,…
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Wonderful Early Silurian Life
Sci-News has a story about interesting new fossils from Wisconsin. The Waukesha Biota, a Silurian lagerstatten located near Milwaukee, dates to about 437 million years ago. The deposit preserves an ancient tidal lagoon. The fossils are found in a fine-grained mudstone known as the Brandon Bridge Formation. The locality and its fauna are described in…
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Throwback Thursday #125: ESCONI at the College of DuPage 1983
This is Throwback Thursday #125. In these, we look back into the past at ESCONI specifically and Earth Science in general. If you have any contributions, (science, pictures, stories, etc …), please send them to esconi.info@gmail.com. Thanks! Who’s ready to get back to ESCONI meetings? We have the September 2022 General Meeting coming up on…
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Wisconsin Rocks and Minerals
Curious about rock, minerals, and fossils in Wisconsin? There’s a new interactive website by the Wisconsin Geological and Natural History Survey, is something you should check out! There’s explanation of sedimenary, metamorphic, and igneous rocks. And, information about dolomite, granite, sandstone, and more. Oh…. and also some very beautiful pictures. Check it out!
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Fossil Friday #89: Green Bay Cystoid
This is the “Fossil Friday” post #89. Expect this to be a somewhat regular feature of the website. We will post any fossil pictures you send in to esconi.info@gmail.com. Please include a short description or story. Check the #FossilFriday Twitter hash tag for contributions from around the world! A crinoid from Green Bay, Wisconsin is…
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Throwback Thursday #81: Wisconsin Dells Field Trip October 19th, 1952
This is Throwback Thursday #81. In these, we look back into the past at ESCONI specifically and Earth Science in general. If you have any contributions, (science, pictures, stories, etc …), please send them to esconi.info@gmail.com. Thanks! For this week, we are looking back at a field trip to the Wisconsin Dells back on October…
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A Milwaukee Suburb Is Full of Ultrarare Fossils
Hakai Magazine has a story about a special fossil deposit in Waukesha, Wisconsin. The deposit dates to the Ordovician Period about 440 million years ago. It was discovered in 1984 by amateur paleontologists Jerry Gunderson and Ron Meyer. They found fossilized soft tissue why splitting open rocks from a thin layer called the Brandon Bridge…
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Throwback Thursday #22: Field Trip To Lutz Quarry Near Oshkosh, WI in 1954
This is Throwback Thursday #22. In these, we look back into the past at ESCONI specifically and Earth Science in general. If you have any contributions, (science, pictures, stories, etc …), please send them to esconi.info@gmail.com. Thanks! These are pictures of a field trip to Lutz Quarry near Oskosh Wisconsin in 1954. Lutz Quarry had…
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Trilobite Tuesday #8: Trilobite State Fossils
Please note: most of the information used here came from the State Fossil page on Fossilera. It has information on all the state fossils, including state dinosaurs and state “stones”. They have nice pictures and a brief description with links for each one. All but seven states have state fossils. There are three types of trilobite that…
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World’s Oldest Scorpions May Have Moved From Sea to Land 437 Million Years Ago
Smithsonian Magazine has an article about some very old scorpions. Scientific Reports has a paper describing some scorpions that lived about 437 million years ago, during the Silurian Period. These animals, called Parioscorpio venator, lived in what is now modern day Wisconsin. Their fossils were discovered back in the 1980s. When they were alive, Wisconsin…
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Local Native Americans Buried in Blue Wing Cemetery
Recently, through the kindness of part-time Lake Delton resident and neighbor Mary Fairchild, my wife and I were able to revisit the Blue Wing Cemetery near Tomah. Mary is interested in Indian mounds and is rapidly becoming an authority on the subject. The entrance to the Blue Wing Cemetery with spirit houses in the background.…
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Wisconsin’s Indian Mounds by Mary Fairchild
“It may come as a surprise to some people to learn that the Dells area was once in the center of what might be called a lost civilization.” Ross M. Curry About two years ago after rock climbing at Devils Lake, our guide pointed out a strange shape in the grass alongside the lake. It…
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1st Archaeology Meeting of 2009!
On Saturday, January 24th, Sheila Bergmann will give a presentation about the Indians of Central Wisconsin in Room K – 131, College of Dupage at 7:30 p.m. Visitors are welcome; refreshments will be served; parking and admission are free.
