Tag: trilobite
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Will County Forest Preserve: Silurian Trilobite Souvenirs
Event details ***Please note this program is being offered virtually via Zoom.*** Join Donald G. Mikulic for a fascinating look at the trilobite fossils left behind by the Silurian Sea that was once right here in Will County! Mikulic was a senior paleontologist at the University of Illinois Urbana-Champaign and served as the curator of…
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Fossil Friday #264: Arctinurus boltoni from Caleb’s Quarry in NY
This is the “Fossil Friday” post #264. 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! —————————————————– We have something different today… a…
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Throwback Thursday #263: Looking Back At ESCONI For May 2025
This is Throwback Thursday #263. 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! email:esconi.info@gmail.com. AMNH Sylvania, Ohio – Trilobites in the Heartland AMNH Eldredgeops milleri 25 Years Ago – May 2000…
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2025 ESCONI Gem, Mineral, and Fossil Show – Preview #28: Dalmanites Trilobite
This is the preview post #28 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th at the DuPage Fairgrounds in Wheaton, IL, which is the same location as last year. All details can be found here.…
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2025 ESCONI Gem, Mineral, and Fossil Show – Preview #27: Leonapis Trilobite
This is the preview post #27 for the 2025 ESCONI Gem, Mineral, and Fossil Show Live Auction. The ESCONI Gem, Mineral, and Fossil Show for 2025 will be held on March 15th and 16th at the DuPage Fairgrounds in Wheaton, IL, which is the same location as last year. All details can be found here.…
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Fossil Friday #230: Trilobites from Penn Dixie
This is the “Fossil Friday” post #230. 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! Penn Dixie is on most fossil collectors’…
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Trilobite Tuesday #49: Most pristine trilobite fossils ever found shake up scientific understanding of the long extinct group
Phys.org has an article about an amazing fossil find in Morocco. A recently discovered deposit of Cambrian trilobites is being described as Pompeii-like, in that the fossils were preserved in volcanic ash (like the Roman city of Pompeii). The fossils are preserved with such fidelity that some never before seen anatomical features are seen preserved…
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Fossil Friday #211: Lemont Calymene From the Past
This is the “Fossil Friday” post #211. 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! This week, we have a combination Throwback…
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Trilobite Tuesday #48: Rare museum specimen reveals new insights into how trilobites curled themselves into a ball
Phys.org has a story that shed light how trilobites evolved the ability to enroll their bodies for protection against predators. A team of researchers from Harvard examined a museum specimen that had preserved sternites, where were plates that lined the stomach of trilobites. Using micro-CT scans, the researchers could see how the plates slid past…
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Trilobite Tuesday #47: Six new species of Western Australian trilobites discovered
Phys.org has a story about the discovery of six new species of Australian trilobites. The new animals hail from deep underground in Canning Basin of Western Australia. Their discovery was via a stratigraphic drilling program by the Geological Survey of Western Australia and Geoscience Australia. It sheds light on both ancient life and the geologic…
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Trilobite Tuesday #46: Trilobite’s last meal
CBC Radio’s Quirks and Quarks show has a segment about a trilobite’s last meal. The trilobite specimen, Bohemolichas incola, was found in a 465 million year old (Ordovician Period) shale deposit. A 465 million year old trilobite fossil with remarkably preserved gut contents reveals for the first time what these extinct arthropods ate. Per Ahlberg, a…
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Trilobite Tuesday #45: Taphonomy of non-biomineralized trilobite tissues preserved as calcite casts from the Ordovician Walcott-Rust Quarry, USA
Nature’s journal communication Earth & environment has a paper about the preservation of trilobites in the Wolcott-Rust quarry. The Walcott-Rust quarry was discovered by Charles Wolcott in the 1870’s. It dates to the Ordovician Period and yielded the first known trilobite appendages. This paper details research into the mechanism of the delicate, three dimensional preservation.…
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Fossil Friday #175: Calymene from Naperville
This is the “Fossil Friday” post #175. 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! We received another Fossil Friday contribution from…
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Trilobite Tuesday #44: Trilobite of the Month, August 2023
Sam Ohu Gon III posted some awesome photos for Trilobite of the Month, August 2023 over on Facebook. If you don’t know of Sam’s work, have a look at trilobites.info for everything you ever wanted to know about trilobites!
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Throwback Thursday #168: British Columbia in Nine Days
This is Throwback Thursday #168. 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 up for a summer trip to the Burgess Shale in British Columbia? How about 9 days, with…
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Fossil Friday #155: Isotelus From Illinois
This is the “Fossil Friday” post #155. 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! Isotelus is a trilobite from the middle…
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Trilobite Tuesday #43: Ancient sea creature sported a big fork on its head to toss away the competition, study suggests
CBC Radio’s Quirks and Quarks had a recent segment about trilobites. New research published in the journal Proceedings of the National Academy of Sciences suggests a use for the large forks that some trilobites grew on their heads. A species of ancient trilobites grew big forks on their heads to fight their opponents and impress…
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Fossil Friday #127: Calymene Trilobite
This is “Fossil Friday” post #127. 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! Today, we have a gorgeous trilobite from long-time…
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Fossil Friday #122: Eldredgeops rana from Penn Dixie
This is “Fossil Friday” post #122. 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! Today, we have a very nice Eldredgeops rana…
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Trilobite Tuesday #42: Trilobites’ growth may have resembled that of modern marine crustaceans
Phys.org has a story about trilobite growth. Research published in the journal Paleobiology shows that trilobites grew in a fashion similar to modern extant crustaceans. Data for the study came from exceptionally preserved trilobites from “Beechers Trilobite Bed” in upstate New York. For more information about “Beecher’s Trilobite Bed”, have a look at Trilobite Tuesday…
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Trilobite Tuesday #41: Travels with Trilobites
There’s a new trilobite book coming out on June 21st, 2022. It’s called “Travels with Trilobites”. The author is Andy Secher a prolific collector of trilobites. He lives in New York City just a few blocks from the American Museum of Natural History. He’s co-editor of the AMNH’s very informative trilobite website. Trilobites were some…
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Trilobite Tuesday #40: Find the Trilobite!
ESCONI recently held a field trip to the St. Paul Quarry in St. Paul, Indiana. As part of that trip, a few of us paid a visit to the famous St. Leon roadcut on Indiana Route 1 just off Interstate 74 at exit 164 for St. Leon. The road cut is huge and loaded in…
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Trilobite Tuesday #39: Before There Were Birds or Bees, This Is How Trilobites Made Babies
The New York Times Trilobites column has a story about trilobite reproduction. Trilobites first show up in the fossil record back in the Cambrian Period, some 500 million years ago. Their closest living relative is most likely the horseshoe crab. Now, a team of paleontologists from Harvard have published a paper in the journal Geology that looks into the…
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Trilobite Tuesday #38: Inspired by prehistoric creatures, researchers make record-setting lenses
Phys.org has a story about technology derived from fossils. Some researchers at NIST have took inspiration in the eyes of the trilobite Dalmanitina socialis to make special bifocal lenses for a miniature camera. Their work can be found in a recent paper published in the journal Nature Communications. Five hundred million years ago, the oceans…
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Trilobite Tuesday #37: Trilobite Fossils Suggest Cannibalism Is More Ancient Than Once Thought
The New York Times Trilobites column has a story about cannibalism among trilobites. A new study published in the journal Palaeogeography, Palaeoclimatology, Palaeoecology found evidence of cannibalism in 512 million year old fossils from Emu Bay on Kangaroo Island off the south Australia coast. Cannibalism is common among the millions of modern arthropod species. A…
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Trilobite Tuesday #36: 7th International Conference on Trilobites & Their Relatives – Cincinnati July 14th to 18th, 2022
The Cincinnati Museum Center is sponsoring the 7th International Conference on Trilobites & Their Relatives from July 14th to 18th, 2022. There are field trips both before and after the conference. A Warm Welcome! Welcome to the 7th International Conference on Trilobites & Their Relatives to be held at Cincinnati Museum Center in Cincinnati, Ohio,…
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Trilobite Tuesday #35: Ceraurinus icarus
How about a Trilobite Tuesday post? Here is a rare species of trilobite from Indiana, Ceraurinus icarus. This specimen is from the Whitewater Formation in Union Co., Indiana. The pictures were contributed by Dan Damrow. Thanks, Dan! Awesome trilobite!
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Video for ESCONI September 2021 General Meeting – “Exploring evolutionary patterns and processes in trilobites”
The speaker at our September 10th general meeting was Dr. Mark Webster from the Department of Geophysical Sciences at the University of Chicago. The topic was Cambrian trilobites. Here’s a link to his page at the university: https://geosci.uchicago.edu/people/mark-webster/
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Photos from the ESCONI Field Trip to Belvidere Quarry – June 26th, 2021
ESCONI held a field trip to a Belvidere, IL quarry on June 26th, 2021. Some of the finds were Hormotoma snails, nautiloids, and trilobites. Here are some photos from ESCONI member Therese Cushing. Thanks, Therese!
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Fossil Friday #60: Calymene celebra
This is the “Fossil Friday” post #60. 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! This week, we have a trilobite for…
