ESCONI Gem, Mineral, and Fossil Show

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  • Fossil of Pincer-Wielding Crawler Reveals Origins of Spiders, Scorpions and Others
    The Trilobites column over at the New York Times has a interesting story about the origin of chelicerates – spiders, scorpions, mites, horseshoe crabs, and others. Chelicerates are a diverse group of arthropods that consists of more than 120,000 known species. Member of this group are classified by having a pair of appendages called chelicerae. These appendages are adapted for various purposes like snatching prey, injecting venom, and even spinning silk.

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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.”
No meeting this monthMineralogy Study Group
No meeting this monthJunior Study Group
  • Events May, 2012

    Events May, 2012

    TIP: At the next May General meeting, you have a chance to be part of history and help ESCONI publish this new revision of the Mazon Creek Fauna book by buying a $100 share! When we sell enough books, we will repay your shares (with no interest) but with our thanks. Repayment will depend on how quickly the books are sold and printing costs are recovered. Contact Irene Broede or Karen Nordquist to participate – at the next General meeting on Friday, May 11th at 8:00 pm. Or contact ESCONI at the email address listed on the right to get…

    Read more: Events May, 2012
  • 570 Million Year Old Hint At Animal Life Origns

    Via Wired: …  Using a technique called x-ray tomographic microscopy, researchers captured an unprecedented level of detail in the Doushanto fossils, imaging internal and external features down to a ten-thousandth of an inch. They could even see individual nuclei within the cells, some of which were caught in the act of dividing. Interestingly, these nuclei had distinctive shapes, quite unlike the cell nuclei of animal embryos, which lose their contours when they divide. Furthermore, while the cells were rapidly dividing, they weren’t differentiating into specialized tissues. The cell clusters also sprouted peanut-shaped protrusions filled with spore-like cells. “All of that…

    Read more: 570 Million Year Old Hint At Animal Life Origns
  • Fossil Forum’s Field Trip Discussion

    The Fossil Forum has many discussion rooms. One of them is the Field Trip discussion.

    Read more: Fossil Forum’s Field Trip Discussion
  • Review of Tucson Gem Show

    From the Gemstone Forecaster a review of this years Tucson Gem show and other interesting stuff: … Sales at the Tucson Gem Shows suffered when the Great Recession started in 2008. However, the past two years have been surprisingly good for the high-end dealers. This probably reflects the continued demand from international collectors, investors and jewelry buyers. Many of these buyers are gun-shy of stock and real estate markets and are looking to further diversify their portfolios. It gives them peace of mind to place… continued

    Read more: Review of Tucson Gem Show
  • Drought and the Mayan Downfall

    Via BBC: Scientists have long thought that severe drought caused its collapse. But Mexican and British researchers now think that a sustained drop in rainfall of only 25-40% was enough to exhaust seasonal water supplies in the region. The findings were published in the journal Science….  

    Read more: Drought and the Mayan Downfall
  • A Visit to a Rare Earth Mine

    Photographs and explanation of the industry with The Atlantic.

    Read more: A Visit to a Rare Earth Mine
  • Oldest Organism with Skeleton Found in Australia

    Via PhysOrg: …Coronacollina resembles the Cambrian fossil sponge, Choia. The three raised points on the rim are evident, with a central hollow and four spicules extending from the cone rim…. the organism is between 560 million and 550 million years old, which places it in the Ediacaran period, before the explosion of life and diversification of organisms took place on Earth in the Cambrian….

    Read more: Oldest Organism with Skeleton Found in Australia
  • Subsidence Rate for Mississippi Delta

    Via NSF.gov: The Earth’s crust beneath the Mississippi Delta sinks at a much slower rate than what had been assumed. That’s one of the results geoscientists report today in a paper published in the journal Earth and Planetary Science Letters.   

    Read more: Subsidence Rate for Mississippi Delta
  • Italian Mineralogy

    Last Saturday, the ESCONI Mineralogy Study Group discussed the gems and minerals of Italy.   Here’s a blog about the topic, “The Best of Italian Mineralogy“

    Read more: Italian Mineralogy
  • Dinosaur Copyright Suit Settled

    Via ArgusLeader: BILLINGS, MONT. — The question of whether renderings of ancient dinosaurs can be copyright-protected as original “art” remains unresolved after a settlement was reached in a federal lawsuit in Montana over bone castings from three well-known Tyrannosaurus rex specimens. Because of the settlement, a hearing scheduled for today that would have struck at the heart of the dispute was canceled by U.S. District Judge Sam Haddon. Parties in the case said Monday that they could not reveal the terms of the deal .  

    Read more: Dinosaur Copyright Suit Settled
  • Glass Mineral on Mars

    Via HuffPo: Scientists puzzling over some odd dark spots on Mars may finally have shone a light on the mystery. In a new paper, published March 26 in the academic journal Geology, study authors Briony Horgan and James Bell of Arizona State University in Tempe found evidence that the Martian blemishes are likely to be made of sand-like particles of glass, similar in composition to obsidian.  

    Read more: Glass Mineral on Mars
  • Paleontology Blog with An Attitude

    Fun and interesting paleontology blog – “Jersey Boys Hunt Dinosaurs“

    Read more: Paleontology Blog with An Attitude
  • COD Mazon Creek Class Saturday, April 28

    Fossil Dig (Grades 6-12 and youthful adults!), Continuing Ed. College of Dupage class. Experience the excitement and adventure in fossil hunting at Mazon Creek, Coal City,Illinois. Paleontologist Rob Sula discussesthe importance of fossils, as well as the types of fossils you might find, collect and take home from the site. Saturday, April 28, 9 a.m.-2:50 p.m.YEMS-0010-001, $74Building K, Room 143College of Dupage Continuing Ed. Registration Web Page 

    Read more: COD Mazon Creek Class Saturday, April 28
  • Josh Mathews on Antarctica Paleontology

    Last night, those who attened the General Meeting heard an informative and entertaining lecture about Josh Mathew’s paleontology work in Antartica.  As a follow-up, here is a recently published article discussing some of what he told us about – Augustana Geology Museum welcomes two new flying reptiles. Also, of note – Augustana College invites learners of all ages to visit campus on Saturday, April 28, to take part in three educational events— Polar Palooza, Science Open House and a planetarium program.

    Read more: Josh Mathews on Antarctica Paleontology
  • Meeting Fri & Sat

    Friday 4/13 – General Meeting – 7:30 p.m. College of Dupage, Building K, Rm161. Josh Mathews, Augustana College. He will speak on – Dinosaurs “On the Rocks”: An Exploration of Antarctic Fossils and New Discoveries & Insights from th Frozen Continent. Sat, 4/14 – Mineralogy and Micromount Study Group Meeting. 7:30 p.m. College of Dupage, Building K, Rm 161.  Topic: Minerals of Italy

    Read more: Meeting Fri & Sat
  • Got Geodes?

    ESCONI can use donations of geodes for the Geode booth at next year’s annual show. Bring to general or mineralogy meeting and one of the board members at the meeting will be happy to accept your geode gift. 

    Read more: Got Geodes?
  • Auction Ends 4/15

    This information from Alice Brockman, who wanted to let members know of this auction. The auction is a private auction, not an ESCONI auction. Rock & Mineral Specimen Auction – Timed Internet SaleAuction ends 4/15/12LOCAL PICKUP ONLY – Local pickup day is 4/17/12 Mound City Auctions, a St. Louis, MO. auction leader announces afantastic online only timed internet auction of Lucille Bishop’s Rock & Mineral Specimen Collection. Lucille was formerly the president of McDonnell Douglas’ Gem & Mineral Society, and had a massive collectionof thousands and thousands of specimens of assorted rocks & minerals. Here is a partial list of…

    Read more: Auction Ends 4/15
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    ESCONI Field Trips, 2012

    We have a few field trips coming up. To attend field trip, one needs to be a member of ESCONI, which is easy to do!  The St.Paul field trip is limited to age 18 and above. However, under 18 yr members are welcome to the Schingoethe field trip and the Braceville field trip.  Sun, 4/15 –  ESCONI Field Trip - Schingoethe Center for Native American Culturesat 1:30 pm. We will meet inside the Center entrance. Cost is $4 per person, which includes a guided tour. Located in Aurora University in Dunham Hall, The Schingoethe Center for Native American Cultures holds more…

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  • Largest Dinosaur with Feathers

    Via New York Times (hat tip Floyd): Fossils discovered in northeastern China of a giant, previously unrecognized dinosaur show that it is the largest known feathered animal, living or extinct, scientists report. Although several species of dinosaurs with feathers have already been uncovered in the rich fossil beds of Liaoning Province, the three largely complete 125-million-year-old specimens are by far the largest. The adult was at least 30 feet long and weighed a ton and a half, about 40 times the heft of Beipiaosaurus, the largest previously known feathered dinosaur. The two juveniles were a mere half ton each…. more

    Read more: Largest Dinosaur with Feathers
  • Geologist, Mike Curtain, Receives Polar Award

    Via BBC: The geologist from Thrapston is regularly dropped into remote mountain ranges, given a ski-doo and left for weeks, sometimes months, to examine the land. “It is a dangerous environment, there are challenges,” he said. “But the job is quite self-selecting, if you don’t enjoy the challenge then you would quit.”… … His dedication to finding out about the land in extreme conditions has made some important contributions to the knowledge of the Polar region, which led him to be selected for the Polar Medal….  

    Read more: Geologist, Mike Curtain, Receives Polar Award