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This Dinosaur Really Knew How to Get a Grip
Read more: This Dinosaur Really Knew How to Get a GripThe New York Times Trilobites column has an interesting story about a tiny egg stealing dinosaur that lived about 67 million years ago in what is now Mongolia. Manipulonyx reshetovi had a strange spike-covered hand, which provided its genus name meaning “manipulating claw”. The animal’s fossil was discovered in 1979 and described in the journal Proceedings of the Zoological Institute of the Russian Academy of Sciences last December. “I’ve honestly never been more flabbergasted by any dinosaur fossil,” said Stephen Brusatte, a paleontologist at the University of Edinburgh who was not involved in the study. At first glance, he wondered…
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ESCONI January 2026 Paleontology Meeting – January 17th, 2026 at 7:30 PM – “Getting Lost Can Lead to Treasure – Edrioasteroids”
Read more: ESCONI January 2026 Paleontology Meeting – January 17th, 2026 at 7:30 PM – “Getting Lost Can Lead to Treasure – Edrioasteroids”Jack Kallmeyer President of the Dry Dredgers will present “Getting Lost Can Lead to Treasure – Edrioasteroids – What to Do When You Find Thousands”. The meeting will be held on January 17th, 2026 at 7:30 PM. While growing my early collection in the Cincinnatian, one of the most desired fossils that I sought after was the Edrioasteroid. While not really rare (if you count fragmentary finds), nice complete specimens tend to be elusive. I took detailed notes and directions given at a Dry Dredgers club lecture to a site where whole specimens had been found. I missed the field…
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Mazon Monday #304: Field Museum… Illinois by the sea
Read more: Mazon Monday #304: Field Museum… Illinois by the seaThis is Mazon Monday post #304. What’s your favorite Mazon Creek fossil? Tell us at email:esconi.info@gmail.com. In May 1970, the Field Museum opened an exhibit about Mazon Creek. It was called “Illinois by the sea: a coal age environment” and ran from May 25th until September 25th. It was a successful exhibit that featured Field Museum fossils and contributions from ESCONI members. Many familiar names were among the contributors. There was an announcement in the ESCONI newsletter in September 1970. DON’T MISS THIS FIELD MUSEUM EXHIBIT!–via Terry Wolfe Inaugurated May 25th to become the newest exhibit at the Field Museum,…
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NPR Short Wave: The dinosaur secrets found in the archives of a natural history museum
Read more: NPR Short Wave: The dinosaur secrets found in the archives of a natural history museumNPR’s Short Wave show has an episode about dinosaurs at the Carnegie Museum of Natural History in Pittsburgh. What happens behind the scenes of a dinosaur exhibit? Short Wave host Regina Barber got to find out … by taking a trip to the Carnegie Museum of Natural History in Pittsburgh. In the museum’s basement, she talked to a paleobiologist, checked out a farmland fossil find and even touched a 67 million-year-old bone. Because, as it turns out, there’s a lot of science that can be found in a museum basement. Learn more about the Carnegie Museum of Natural History’s exhibit “The Stories…
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The Year in Neanderthals
Read more: The Year in NeanderthalsThe New York Times has a nice article that highlights new understanding into who the Neanderthals were. Neanderthals lived across Eurasia for hundreds of thousands of years before going extinct some 40,000 years ago. A bunch of new high profile studies were published in 2025. Barely three decades ago, these ancient hominids were still being widely depicted as knuckle-dragging brutes that were too dimwitted for moral or religious concepts, probably lacking language and behaviorally less advanced than modern humans. The picture changed considerably in 2010 after the Max Planck Institute published the complete Neanderthal genome, which revealed that people of European…
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Fossil Friday #299: Annularia sphenophylloides
Read more: Fossil Friday #299: Annularia sphenophylloidesThis is the “Fossil Friday” post #299. Expect this to be a regular feature of the website. We will post fossil pictures you send in to esconi.info@gmail.com. Please include a short description or story. Check the #FossilFriday Bluesky/Twitter hash tag for contributions from around the world! Today, we have another beautiful contribution from George Witaczek. This time it’s a beautiful Annularia sphenophylloides (see Mazon Monday #123) is another Mazon Creek favorite. They are almost always preserved with 3 dimensions, as is this one. Thanks for sharing, George! Annularia sphenophylloides is a smaller variety of Annularia, which were the “leaves” of Calamites. It was described in…
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Throwback Thursday #299: Macfallite
Read more: Throwback Thursday #299: MacfalliteThis is Throwback Thursday #299. 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. This post is a follow up to last week’s Throwback Thursday, where we mentioned the mineral species Macfallite. It was named for Russell P. MacFall (1903-1983). MacFall was an editor for the Chicago Tribune newspaper and, earlier, for other newspapers. He was an amateur mineralogist interested in systematic mineralogy and an author of six books on popular mineralogy, paleontology, and geology. Russell did…
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WHY DINOSAURS? Award-Winning Dinosaur Documentary!
Read more: WHY DINOSAURS? Award-Winning Dinosaur Documentary!The award winning documentary “Why Dinosaurs” is now available on Youtube! The documentary covers quite a bit of the history and the science of paleontology. Did I mention that ESCONI’s own Rob Sula has his own segment? Oh, there’s also a great website – whydinosaurs.com. The website has extended interviews and other extras! Check it out! An award-winning documentary about dinosaurs and the people who love them. From prestigious museums and universities to blockbuster films, amusement park rides, video games, and toys—dinosaurs have fascinated us for generations. But… why? WHY DINOSAURS? follows dino-obsessed teen James Pinto and his filmmaker father…
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ESCONI January 2026 General Meeting – January 9th, 2026 at 8:00 PM – “Fossil Birds of Wyoming”
Read more: ESCONI January 2026 General Meeting – January 9th, 2026 at 8:00 PM – “Fossil Birds of Wyoming”Jean-Pierre Cavigelli, of Casper College in Casper, WY, will present “Fossil Birds of Wyoming”. Wyoming is well known for its fossils of all kinds. Dinosaurs are probably the most famous. They were first discovered here in the late 1800’s and are still being uncovered and studied nowadays. Fossil fishes from the southwest corner of the state are mined by the thousands and sold in rock shops all over the world. Wyoming also has great deposits of fossil mammals, and reptiles such as crocodiles and turtles. But what about birds? In general, bird fossils are generally very uncommon. This is mainly…
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Mazon Monday #303: Happy 60th Birthday, Tully Monster!
Read more: Mazon Monday #303: Happy 60th Birthday, Tully Monster!Happy 60th Birthday to the Tully Monster! Well, actually tomorrow is the day. And, I guess technically it’s really been 307 – 309 million years, but who’s really counting. Eugene Richardson, Jr., who first called it “Mr. Tully’s monster”, described the animal in the paper “Pennsylvanian invertebrates of the Mazon Creek Area, Illinois: the morphology and affinities of Tullimonstrum”, which was published on March 24th, 1966 in the journal Fieldiana.
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Adam Savage at the American Museum of Natural History
Read more: Adam Savage at the American Museum of Natural HistoryThe AMNH has a new exhibit called “Impact: The End of the Age of Dinosaurs”. Adam Savage visited the museum just before the exhibit opened in November, There are a series of videos on Youtube. How do you come up with the physical representation of animals we know lived on Earth, when the evidence of their existence is limited to bone, footprints and skin impressions at best? How do you decide on color? Pose? Scale? Even setting? At the @AmericanMuseumofNaturalHistory, curator/paleontologist Roger Benson and senior principal preparators Rebecca Meah and Jake Adams talk to Adam Savage about how they came…
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PRI’s Wonderful Life
Read more: PRI’s Wonderful LifeHere’s a followup to the New York Times’ post about the Paleontological Research Institution (PRI) and the Museum of the Earth’s financial woes… they found funding and will continue operation! By late summer, although gifts continued to arrive at roughly twice the rate of previous “normal” years, larger gifts had slowed and we were still about $1 million away from being able to pay off our mortgage. But in early October one of our Board members wrote a short letter to The Ithaca Times, and this resulted in a front page story. At around the same time, we hired a…
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Fossil Friday #298: Seed Fern Fiddlehead – Spiropteris
Read more: Fossil Friday #298: Seed Fern Fiddlehead – SpiropterisThis is the “Fossil Friday” post #298. Expect this to be a regular feature of the website. We will post fossil pictures you send in to esconi.info@gmail.com. Please include a short description or story. Check the #FossilFriday Bluesky/Twitter hash tag for contributions from around the world! This week’s Fossil Friday features a fiddlehead — the coiled frond of a young fern. This specimen comes from a seed fern, most likely Neuropteris. At Mazon Creek, fiddleheads are assigned to the species Spiropteris sp. (see Mazon Monday #207). This breathtaking specimen comes from Jeremy Zimmerman. Thanks for sharing, Jeremy!
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Throwback Thursday #298: Looking Back At ESCONI For January 2026
Read more: Throwback Thursday #298: Looking Back At ESCONI For January 2026A look back at January 1956, 1976, and 2001
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Spinosaurus relative longer than a pickup truck stalked Thailand’s rivers 125 million years ago
Read more: Spinosaurus relative longer than a pickup truck stalked Thailand’s rivers 125 million years agoLiveScience has a story about a spinosaur that lived in Thailand 125 million years ago, during the early Cretaceous Period. The animal was about 25 feet long (7-8 meters) and likely ate the fish that swam in the rivers. The new dinosaur has yet to be named and was discovered in the Sam Ran locality of the Khok Kruat rock formation in northeastern Thailand. “This discovery from Thailand helps us better understand what spinosaurines looked like and how they evolved in Asia,” Adun Samathi, an assistant professor at the Walai Rukhavej Botanical Research Institute and Mahasarakham University in Thailand, told Live…
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Ancient oceans were ruled by super predators unlike anything today
Read more: Ancient oceans were ruled by super predators unlike anything todayScienceDaily has a story about the top predators of the past. Researchers from McGill University looked at Colombia’s Paja Formation, which dates to the early Cretaceous Period, some 122 million years ago. That formation preserves the ancient marine ecosystem, which had a very complex food chain, more so than the modern oceans. The paper was published in the journal Zoological Journal of the Linnean Society. Trophic levels describe an organism’s position in a food chain based on how it gets energy and nutrients. Put simply, they explain who eats whom within an ecosystem. In today’s oceans, food chains typically reach only…
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Mazon Monday #302: The Wreck of the 5560
Read more: Mazon Monday #302: The Wreck of the 5560This is Mazon Monday post #302. What’s your favorite Mazon Creek fossil? Tell us at email:esconi.info@gmail.com. The Marion Power Shovel Company was an American company that designed, manufactured, and built steam shovels, power shovels, blast hole drills, excavators, and dragline excavators. The company was headquartered in Marion, Ohio and operated from 1884 to 1997, when it was acquired by its competitor Bucyrus International, Inc. Marion-built shovels and other products were among the best known trade names in earth moving equipment during the twentieth century. Marion’s large and small steam shovels were used by building contractors, railroads, and the US Army Corps…
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Giant sea monsters lived in rivers at the end of the dinosaur age
Read more: Giant sea monsters lived in rivers at the end of the dinosaur ageScienceDaily has a story about mosasaurs. It seems that giant mosasaurs didn’t just live in the oceans… they also prowled rivers. A large tooth found in a North Dakota deposit along with a Tyrannosaurus rex tooth and a jawbone from a crocodylian revealed an isotope signature consistent with a live in fresh water. See the paper “King of the Riverside” in the journal BMC Zoology. The tooth was uncovered in 2022 from a river deposit in North Dakota. It was found alongside a tooth from a Tyrannosaurus rex and a jawbone from a crocodylian, in a region already known for…
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An Engine of Fossil Discovery Fights Its Own Extinction
Read more: An Engine of Fossil Discovery Fights Its Own ExtinctionThe New York Times has a story about the financial troubles at the Museum of the Earth and the Paleontological Research Institution in Ithaca, N.Y. The institution was establish almost 100 years ago and has amassed one of the largest collections of fossils in North America. “No one has ever experienced trying to rehouse a collection like this,” said Warren Allmon, the director of the institution and a professor of paleontology at Cornell University. “If we had to close, there would be no one institution that could take all the collection.” For decades, the museum has relied on a single,…
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Fossil Friday #297: Alethopteris serlii
Read more: Fossil Friday #297: Alethopteris serliiThis is the “Fossil Friday” post #297. Expect this to be a regular feature of the website. We will post fossil pictures you send in to esconi.info@gmail.com. Please include a short description or story. Check the #FossilFriday Bluesky/Twitter hash tag for contributions from around the world! This week’s Fossil Friday is a favorite of many Mazon Creek collectors. Alethopteris serlii was a seed fern that existed during the Carboniferous Period. It is commonly found in the Mazon Creek terrestrial deposits. It was described by Alexandre Brongniart (1770-1847) in 1836. Brongniart was a French chemist, mineralogist, geologist, paleontologist, and zoologist. He had…
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Field trips require membership, but visitors are welcome at all meetings!
| Friday, April 10th | General Meeting – 8:00 PM via Zoom. Jessica Hull will present “Life in the Devonian Period, The Age of Fishes.” |
| Saturday, April 11th | Junior 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 18th | Paleontology 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 24th | MAPS Expo XLVII – Springfield, IL. |
| Saturday, April 25th | MAPS Expo XLVII – Springfield, IL. |
| Sunday, April 26th | MAPS Expo XLVII – Springfield, IL. |
| No meeting this month | Mineralogy Study Group |