ESCONI Gem, Mineral, and Fossil Show

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  • ESCONI April 2026 General Meeting via Zoom – “Life in the Devonian Period, The Age of Fishes”
    The April 2026 General Meeting will be held on April 10th, 2026 at 8:00 via Zoom. At the meeting, Jessica Hull will present “Life in the Devonian Period, The Age of Fishes.” The Devonian Period was a crucial moment in the history of life. In this presentation, Jessica Hull will bring fossils to life by describing how they would have lived based on the most up to date research. Dunkleosteus fans won’t want to miss this!

esconi.info@gmail.com

Field trips require membership, but visitors are welcome at all meetings!

Friday, April 10thGeneral Meeting – 8:00 PM via Zoom.

Jessica Hull will present “Life in the Devonian Period, The Age of Fishes.”
Saturday, April 11thJunior Study Group Meeting – 2:00 PM, in person at the College of DuPage Technical Education Center (TEC) Building – Room 1038A (Map).

Katherine Howard will present on Sand and Sediment Collecting.

Specifics of this meeting are available from Scott Galloway, 630-670-2591,  gallowayscottf@gmail.com.
Saturday, April 18thPaleontology Study Group – 7:30 PM via Zoom and in person at the College of DuPage, TEC, Room 1038B (Map).

Keith Robitschek will present “Digging the Marl of the Lance Formation.”
Friday, April 24thMAPS Expo XLVII – Springfield, IL.
Saturday, April 25thMAPS Expo XLVII – Springfield, IL.
Sunday, April 26thMAPS Expo XLVII – Springfield, IL.
No meeting this monthMineralogy Study Group
  • Chicagoland Gem, Mineral Show This Weekend

    This Memorial Day weekend, at the Chicagoland Gem, Mineral and Fossil show, nationally-known dealers, demonstrations, educational exhibits, lapidary arts, jewelry exhibits, faceting, cabochon cutting, polishing gemstones, silversmithing, beading, wire wrapping, geode splitting, a silent auction, childrens’ rock area – and jewelry repair – will all be available! Saturday, May 26, 2012 10am – 6pm Sunday, May 27, 2012  10am – 5pm Adults – $5.00Seniors- $3.00 Students (13-17) – $3.00 Children (Under 13) Free FREE PARKINGiNDOORS – AIR CONDITIONED – FOOD AVAILABLE  DuPage County Fairgrounds 2015 W. Manchester Rd. Wheaton, IL   

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  • Turtle the Size of a Small Car

    Turtle the Size of a Small Car

    Via NC State University: (hat tip Floyd) – “…  A prehistoric turtle big enough to eat crocodiles has been discovered in Columbia. The turtle lived about 60-million-years ago, and was about the size of a small car. The fossils were discovered in a coal mine in northern Colombia, in 2005. And has thusly been named Carbonemys cofrinii, ‘coal turtle’. With a skull about the size of a football, and a shell that’s about five and a half feet long. “We had recovered smaller turtle specimens from the site. But after spending about four days working on uncovering the shell, I…

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  • GOLD Field Trip to Bricoe Mounds – Sun 5/27

    This field trip is being held by Les Marszalek, President of GOLD (Greater Oak Lawn Diggers). If you are interested, meet at the boat house at 11 AM on Sunday 5/27/12.  The boat house is by Canal Street on the I&M Canal off of Route 6 and Canal Street. At 11:30 AM, the attendees will head out for a tour of Briscoe Mounds (see bottom of page). If you have further questions about his Sunday May 27th Fieldtrip to Briscoe Mounds, contact Les at (708) 501-0677.

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  • ESCONI Field Trip Announced – Sat-Sun 6/2-3, 2012 – Cahokia Mounds

    Cahokia Mounds State Park Field Trip, Saturday June 2nd and Sunday June 3rd. Contact Bryan Nugent (630) 960-5147 to register or for additional information. There is no admission fee but a suggested donation of $4 for adults and $2 for children ($10 max. per family). Events and programs are free, unless otherwise noted. Workshops and classes require pre-registration and fees paid to instructors. For more information, call 618-346-5160. Cahokia Mounds is located in Collinsville, Illinois off Interstates 55/70 and 255. Cahokia Mounds is just fifteen minutes east of St. Louis, Missouri. Much more information can be found by downloading this…

    Read more: ESCONI Field Trip Announced – Sat-Sun 6/2-3, 2012 – Cahokia Mounds
  • Rebellatrix

    Via UPI – Ancestor of living ‘fossil fish’ described An ancestor of coelacanths, “living fossil” fish thought extinct until a live one was caught in 1938 off South Africa, has been identified, paleontologists say. Unlike living coelacanths, which are slow-moving fish with peculiar broad tails, the extinct ancestor had a tuna-like forked tail and was probably a fast-moving, shark-like predator, Canadian researchers from the University of Alberta report in the Journal of Vertebrate Paleontology. Read more: http://www.upi.com/Science_News/2012/05/03/Ancestor-of-living-fossil-fish-described/UPI-17481336077936/#ixzz1u819yvpJ  

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    Do You Know Who Owns This Fossil?

    Need help! Do you know which member owns this fossil (and brought it to be photographed for the new book?) If so, please send email to esconiclub@yahoo.com or call Jack Wittry or reply in the comment section of this post or call a board member listed in the newsletter. Thank you! Click on photo to embiggen. 

    Read more: Do You Know Who Owns This Fossil?
  • Profile on Self-Taught Paleontologist in Maryland

    Via Washington Post – Tireless tracker rewrote the book on dinosaurs in Maryland (hat tip Don B.) …Wiry, voluble, energetic 73-year-old Ray Stanford could almost pass for a paleontologist. But his hair is a little too short, his beard too trim, his button-down shirt too tucked. And he talks too fast. This Texan is an amateur, although he disdains that term. He’s self-taught, a gentleman naturalist. And now he’s leading me to the Stanford Museum: his living room…No dinosaur footprints in Maryland? There were stampedes of them…

    Read more: Profile on Self-Taught Paleontologist in Maryland
  • Call for Volunteer Help on CGMA Show

    ESCONI is one of five Chicagoland clubs in Chicagoland Gem and Mineral Society. The other clubs are Chicago Rocks and Minerals Society, DesPlaines Geological Society, Elgin Rocks and Minerals Club and West Suburban Lapidary Club. All the members join together to put on the biggest, best rockin’ show! So, what can ESCONI members do to support this show? Here are some ideas: If you can provide any help at all, it will be greatly appreciate and you can get into the show free! Also, ESCONI will receive some money for member support. To sign up for any volunteer activity, call…

    Read more: Call for Volunteer Help on CGMA Show
  • New Field Trip Announced, 2012

    There will be an ESCONI Field Trip to the Vulcan (was Larson) Quarry on Barber Greene Road in Sycamore, IL on June 16th 2012, from 9 to noon. Sign up by sending me an email with the number of people and their names. I will acknowledge by return email. By request of the quarry management, the trip is limited to 20 people. Rules: 1. Must be an ESCONI member. 2. Must be at least 18 years old. 3. Must wear a hard hat and boots. Be there by 9AM. Park by the metal office on the south side of Barber…

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  • DNA May Resolve Origin of European Agriculture

    Via PhysOrg: The genetic profiles of three Neolithic hunter-gatherers and one farmer who lived in the same region of modern-day Sweden about 5,000 years ago were quite different – a fact that could help resolve a decades-old battle among archaeologists over the origins of European agriculture, said study leader Mattias Jakobsson, a population geneticist at Uppsala University in Sweden.

    Read more: DNA May Resolve Origin of European Agriculture
  • Sierra Mountains Rapidly Rising

    Via The Record-Courier – Geologist: Sierra growing at rapid rate, by Mike Wolterbeek, University of Nevada, Reno … scientific evidence from the University of Nevada, Reno, shows the entire Sierra Nevada range is rising at the relatively fast rate of 1 to 2 millimeters every year. “The exciting thing is we can watch the range growing in real time,” University of Nevada, Reno’s Bill Hammond, lead researcher on the multi-year project to track the rising range, said. “Using data back to before 2000 we can see it with accuracy better than 1 millimeter per year. Perhaps even more amazing is that these miniscule…

    Read more: Sierra Mountains Rapidly Rising
  • Lost City Found in Gulf of Cambay

    Via BBC – (hat tip – Rich K.) The remains of what has been described as a huge lost city may force historians and archaeologists to radically reconsider their view of ancient human history. Marine scientists say archaeological remains discovered 36 metres (120 feet) underwater in the Gulf of Cambay off the western coast of India could be over 9,000 years old… more    

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  • Bryan Syke’s New Book – DNA USA: Genetic Portrait of America

    Interesting interview of Bryan Syke’s, including discussion of Clovis controversy, by Leonard Lopate of WNYC about Syke’s new book:  DNA USA: A Genetic Portrait of America. Geneticist Bryan Sykes discusses examining America, one of the most genetically diverse countries in the world, through its DNA, and what it says about how we perceive race. His book DNA USA: A Genetic Portrait of America takes readers on a historical genetic tour, interviewing genealogists, geneticists, anthropologists, and everyday Americans about their ancestral stories.

    Read more: Bryan Syke’s New Book – DNA USA: Genetic Portrait of America
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    New Paper on Trilobites of Utah

    Over at the Yahoo ESCONI discussion group, Don Baumgartner posted: “… Please find this at the below web site for a free download. This was posted a while back off the Trilobite Jam Facebook page.  http://kuscholarwor ks.ku.edu/ dspace/handle/ 1808/8543…”

    Read more: New Paper on Trilobites of Utah
  • Reminder: Pay Yearly Dues

    Membership is open to all people interested in the earth sciences. Annual family dues are $20. $50 for three years.  This covers all members of the family.  To become a member, complete this Membership Form and send with your check to Eileen Mizerk, 2094 Windward Lane, Hanover Park, IL  60133.       To learn more about ESCONI, come to a General Meeting or Study Group Meeting, write an e-mail to emizerk@yahoo.com  or write a letter to ESCONI; Box 321, Downers Grove, IL 60515.

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  • Miner Safety Training Update

    Miner Safety Training  May 24, 2012  7:00  pm to 10:00 pm   We are offering  Miner Safety Certification Training.  John McArdle of ZRS (Zoological Research  Services) is approved to offer Miner Safety Certification Training and issue certificates.  He will  teach the course.  This involves a formal presentation based on a 250 page book, followed by a formal test that must be passed to receive a certificate.  The training take  three (3) hours with a break.  Reservations recommended due to ordering certificates in advance.  Contact John Good at 1-630-483-2363 for reservations or e-mail at esconi@hotmail.com   Miner Safety Training must be…

    Read more: Miner Safety Training Update
  • Miner Safety Training Update

    Miner Safety Training  May 24, 2012  7:00  pm to 10:00 pm   We are offering  Miner Safety Certification Training.  John McArdle of ZRS (Zoological Research  Services) is approved to offer Miner Safety Certification Training and issue certificates.  He will  teach the course.  This involves a formal presentation based on a 250 page book, followed by a formal test that must be passed to receive a certificate.  The training take  three (3) hours with a break.  Reservations recommended due to ordering certificates in advance.  Contact John Good at 1-630-483-2363 for reservations or e-mail at esconi@hotmail.com   Miner Safety Training must be…

    Read more: Miner Safety Training Update
  • 3-D Printing of Dinosaur Bones

    Via ABC News (Feb 22) … For all the digging of dinosaur fossils, all the magnificent reconstructions in museums  and all the research that has been devoted to them, the great beasts remain mostly a mystery to us, and paleontologist Kenneth Lacovara of Drexel University in Philadelphia says our ways of studying them have not changed much in 150 years. Lacovara says he aims to change that. In his lab, he and James Tangorra, a mechanical engineer at Drexel, have been scanning dinosaur bones with lasers, hoping to apply the new technology of 3-D printing to these ancient specimens….  

    Read more: 3-D Printing of Dinosaur Bones
  • Molecular Evolution of Oxygen

    Via Science Daily: … researchers report they have identified an enzyme that was the first — or among the first — to generate molecular oxygen on Earth… The new findings, reported in the journal Structure, build on more than a dozen previous studies that aim to track the molecular evolution of life by looking for evidence of that history in present-day protein structures. These studies, led by University of Illinois crop sciences and Institute for Genomic Biology professor Gustavo Caetano-Anollés, focus on structurally and functionally distinct regions of proteins — called folds — that are part of the universal toolkit of…

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  • Advantages of Teaching Geology at Community College

    Via GeoTripper: I teach geology at a community college, and I can’t imagine a greater career. My list isn’t on a specific geologic topic, it’s about the joy of teaching about the Earth…

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