March/April 2016
Transcription
March/April 2016
Miner als • Dinosaur s • F ossils Tate Geological Museum Geological Times Mar./Apr. 2016 • Vol. 20, No. 8 casp er co l l ege. ed u/ t a t e 3 0 7 - 2 6 8 - 2 4 47 Fossil of theGreenMonth – River Formation Insects ©Drawing by Zack Pullen. By J.P. Cavigelli, Tate Geological Museum Collections Specialist This month’s featured fossils are a pair of Eocene insects. They look like squashed flies, and basically they are. Not squashed by a flyswatter, but squashed by layers of fine detritus over the millennia. Insects are not terribly common in the fossil record, but there are some sites around the world where they can actually be expected. The Green River Formation is one of those sites. The Green River Formation is a series of flat lying, welllaminated lake deposits from three separate lakes that existed during much of the early Eocene Epoch. The three lakes are: 1) Fossil Lake, which was in what is now Uinta and Lincoln Counties here in Wyoming, 2) Lake Gosiute, which covered a much larger area in Sweetwater County, Wyoming and Director’s Note 2016 Tate Conference Werner Wildlife Museum Page 2 Page 3 Page 3 3) Lake Uinta, which also covered a large area along the Utah/Colorado border. The lakes were each a bit different, and their respective geology as well as paleontology are each unique. Fossil Lake, for example, is famous for its fossil fishes. There are a dozen or so quarries in Lincoln County where commercial collectors excavate fossil fishes. Thousands of the more common fish are collected every year, and along with those are much smaller numbers of rarities, including insects. Quarries in Lake Uinta deposits, on the other hand, are among the best fossil insect sites in the world, but contain very few, if any, fish. the sides, and at least two legs folded up under its head. This specimen is part of a donation from the Office of State Lands and Investments. The scale bar is in millimeters. Modern March flies are herbivores, and their fossils date back to the Cretaceous. The first specimen here is from Fossil Lake. It is likely a specimen of the March fly Plecia pearli, by far the most common insect in Fossil Lake. You can clearly see an eye (dark round spot), the body (about 11 mm long), two wings jutting off to We will be visiting one of the Green River fish quarries near Kemmerer, Wyoming, as part of our 2016 Tate Conference (see details and registration forms in this issue). What’s inside DVD Review Easter Baskets Tate Conference Forms Page 4 Page 4 Page 5-6 The second specimen is much smaller and comes from Lake Uinta. There are several well-known sites in the Lake Uinta beds where fossil insects are actually quite common, namely Bonanza in Utah and Douglas Pass in Colorado. This specimen did not come with any locality data but the rock it is in is definitely from one of those two sites. This insect is unidentified. ? and Answers Events Calendar Page 7 Page 8 2 DEE THE MAMMOTH IS ONE OF WYOMING’S TOP ARTIFACTS FOR 2015! By Patti Wood Finkle, Director of Museums DATE NIGHT AT THE MUSEUMS: This February’s Date Night was a great success! Organized by the Casper Museum Consortium, this Valentine’s Day themed date night wined and dined visitors at four Great news! Dee is of Casper’s best museums, including the number 2 on the list of Tate. We saw lots of new faces and met Wyoming’s top 10 artifacts for 2015. Be many great people. Thank you to everyone sure to stop by the museum to pick up your who participated. The next Date Night at free Dee the Mammoth 2015 Award Winner the Museums is scheduled for July. Check sticker today. THANK YOU to everyone who the Casper Museum Consortium website in voted, we couldn’t have done it without June for more details. your support! ZOOLOGICAL ILLUSTRATION: DEE T HE MA M M Ar tifa c ts H OT fc an t ©Drawing by Zack Pullen. Director’s Note: 2015 Award Winner: y of W One o st Mo g’s min i gn Si SPRING LECTURE SERIES: Join us for the second half of our Spring Lecture Series to learn about the Dinosaurs of Wyoming! This year the lecture series will be held in the Wheeler Auditorium, Room 103 in the Wold Physical Science Center on lower campus at 7 p.m. on the following dates. MARCH 24: “Dinosaur Footprints of the World” Russell J. Hawley Tate Geological Museum APRIL 14: “Dinosaurs of the Lance and Hell Creek Formations” Peter L. Larson Black Hills Institute of Geological Research, Inc. The museum is offering another scientific illustration class. Join the Tate’s very own Russell J. Hawley to learn the basics of how to draw animals in this semester’s offering, “Zoological Illustration.” This class is for both novices and experienced artists alike. Supplies and an evening snack will be provided. This class is designed for those 16 and older. Call the Tate to reserve your spot today at 307-268-2447. Cost $5 per person Date: Tuesday, April 26 Time: 6-8:30 p.m. COFFEE, TEA AND DEE: Beginning in February, we held a drawing for our loyal Coffee, Tea and Dee participants. Our caffeinated regulars put their names in the hat for a drawing to win a $5 Tate gift certificate. Wendy, of P. Hawk’s Coffee Roasters, drew three lucky winners. Feeling left out? Don’t worry! We will hold the drawing again in March, April and May so be sure to stop by for a free cup of coffee or tea and a chance to win a $5 gift certificate to the Tate gift shop. SUMMER DINOSAUR DIGS: Due to popularity, we have scheduled five week-long summer digs this year. As of February 16, three of the digs have already sold out and the remaining two are filling up fast. We currently have space on both August digs (15-19) and (22-26). If you are interested in participating on either of these digs, check our website or call the museum for availability and more information. Don’t delay, register today! SPRING BREAK RAPTOR CACHE SCAVENGER HUNT: The Tate and the Werner museums are working together on an activity for the Natrona County School District’s spring break. Stop by the museum between March 25 and April 2 to participate in our Raptor Cache Scavenger Hunt. Learn about raptors both past and present and have your name entered in a drawing to win a prize. Tate Museum Geological Times 3 2016 Tate Conference The 2016 Tate Conference will be held June 3-5. The theme this year is “Rivers of Time: Ancient Freshwater Ecosystems.” We have a fine group of speakers lined up. Talks will be on Friday June 3, with a keynote talk by Dr. Nazir Ibrahim of the University of Chicago that evening. He will speak to us about his amazing Spinosaurus find in Morocco, which he argues is the first example of a dinosaur designed to live more in water than on land. From what I have read, the story of its discovery is just as exciting as the story of the animal. By J.P. Cavigelli, Tate Geological Museum Collections Specialist The field trip will be a two-day trip to tropical wetlands and lakes of the Eocene Epoch in southwestern Wyoming. We will visit Fossil Butte National Monument to, as my Danish friend Niels likes to say, “see the really cool fossils that we will not find.” Then we will go try to find them by spending the afternoon at one of the fish quarries outside of Kemmerer. The quarry we are going to is the only one that allows us to keep everything we find … Oooohh. We will spend the night in Kemmerer, Wyoming, where we may get a bonus Werner Wildlife Museum The Werner Wildlife Museum is gearing up for two big events in April: the opening of “Artisans Unbound: Feathers, Fur and Fiber” and the concurrent opening of “The Lair,” WWM’s long-anticipated children’s interactive area. The events will take place at an open house to be held on Tuesday, April 12 from 4-6 in the afternoon. The public is encouraged to join us and participate in a tour of the museum and the craft show. Children are welcome to explore The Lair and participate in craft stations led by museum assistant Eileen Lemm and work-study student Viola Foderler. “Artisans Unbound” is dedicated to fine crafts created by Wyoming artisans who work with natural materials including wood, plant and animal fiber; leather, stone and similar materials. Unlike the art show, which opens each November, “Artisans Unbound” is open to all state residents and we’ve already received requests for guidelines from several distant communities. We Tate Museum Geological Times are particularly interested in displaying handmade utilitarian pieces; this is not the show for oil paintings, watercolors, photography, or bronzes that would ordinarily be considered fine art as opposed to fine craft. The Lair is finally taking shape after a year of planning and the donation of many volunteer hours. Located in the diorama room on the lower level of the museum, The Lair is an interactive area aimed specifically at children from toddlers up through the elementary grades, but we won’t tell if we discover older siblings and parents playing in the puppet theater or measuring their own arm spans against the eight foot span of a golden eagle. The Lair will also include an interactive ground map of wild Wyoming, a fishing tank, and a reading and puzzle area with cushions to sit on and a hollow stump to hide in. The Werner continues its tradition of thrice monthly wildlife programs with presentation about Green River Formation fossils. The next day we will collect at two sites on our way back to Casper. One is a very productive site in the Wasatch Formation where pieces of Eocene turtles, crocodilians, fish, lizards, and mammals can be found. The second stop will be at a turritella agate site where thousands of fresh water snails died on the edge of Eocene Lake Gosiute. The list of speakers and registration forms are available online at caspercollege.edu/tate-geological-museum/ events/conference. By India Hayford, Museum Assistant Animal House on the second Thursday of each month, Raptor Rap on the third, and the Wildlife Study Group for adults on the fourth Thursday. All presentations take place at the Werner with Animal House and Raptor Rap meeting at 4 p.m. and the Wildlife Study Group presentations at noon and 7 p.m. Subjects for upcoming programs include hawks and otter, mink, and beaver in March and in April, bison and human-raptor interactions. The Werner will offer a special treat in May when Audubon naturalist Zach Hutchinson offers a handson program on catching and banding birds. The Werner Wildlife Museum is open all year long, Monday through Friday, 9 a.m.-5 p.m. For more information, call the museum at 307-235-2108. Interested people can visit the Werner’s Facebook page for regular activity and news updates. 4 DVD Review: By Russell J. Hawley, Tate Geological Museum Education Specialist The excellent BBC documentary series “Walking With Prehistoric Beasts” depicted Cenozoic faunas in Africa, Europe, Asia, and South America with glorious detail and realism. The only drawback to that series was that not one of their scenes was set in the United States! I guess the Brits must have felt guilty about this oversight, because a subsequent series, “Prehistoric America,” focuses entirely on the faunas of the North American continent, specifically those that lived during the Ice Age. view of Ice Age America possible. In the “Canyonlands” chapter, for example, we are shown middens of packrat droppings that have been in continuous use since the Pleistocene. By sampling seeds from successively deeper layers of dung, researchers have been able to trace the changes in local vegetation that have taken place over the last 10,000 years. Then we are shown a panoramic shot of the modern Canyonlands setting and – through the magic of digital effects technology – the scene shimmers and changes and we’re looking at the same scene, but with the original Ice Age vegetation restored! The level of detail in this program is just jaw dropping. Many popular programs about the Ice Age are content to show us a few mammoths and sabretooth cats and leave it at that. But “Prehistoric America” delves a lot deeper, exploring all of the available lines of evidence to provide the most complete and accurate There are, of course, lots of megamammals in “Prehistoric America” – mastodonts, sabretooth cats, glyptodonts, ground sloths, and the best Columbian mammoths I’ve ever seen on screen. These are brought to life with some top-notch computer animation, interspersed with Easter In another sequence, we are shown how the changing climate of Florida affected the distribution of modern amphibian species in the area. at the Tate Museum Gift Shop! footage of the original fossils, showing the various bony clues that paleontologists use to reconstruct the life stories of these long dead beasts (I found the mystery of ‘who killed the Seminole Field Glyptodont?’ story to be particularly fascinating. The answer may surprise you!). “Prehistoric America” isn’t afraid to occasionally take some nice, long shots of Ice Age landscapes, just to let the viewers immerse themselves in this ancient world that they’ve so meticulously re-created. While this is a godsend for people like me, it does mean that “Prehistoric America” won’t appeal to young children. If your kids are content to get all of their information about the prehistoric world from watching the “Jurassic Park” movies, this series probably won’t hold their interest. But for those with a deep interest in the wild and woolly fauna of the Pleistocene, “Prehistoric America” is a must! Hmm … this review is so good I seem to have convinced myself to go home and watch “Prehistoric America” again. So, until next time! Easter is on its way … and the Tate Geological Museum Gift Shop has baskets for your grandchildren, cousins, daughters, sons, or anyone. Each basket consists of merchandise from the gift shop and is made with geological themes such as dinosaurs, fossils and rock collecting. We are also providing the option to build-your-own basket with handpicked gift items. Pre-made baskets will be $20 to $25, while the build-your-own option will vary in price. The Tate Easter Baskets will be available from March 1-26. Stop by to get yours today! Tate Museum Geological Times 22nd Annual Tate Conference RIVERS OF TIME: ANCIENT FRESHWATER ECOSYSTEMS Tate Geological Museum at Casper College June 3-5, 2016 REGISTRATION FORM Please check the applicable boxes and fill in the cost box. Note the following: registration deadline for field trip and all meals is Sunday, May 15, and payment must be made at the time of registration. Friday conference only (Includes Thursday icebreaker; Friday lunch, dinner and keynote) $110 Saturday and Sunday Field Trip (Includes all meals: sack lunch and snacks Saturday and Sunday, dinner + $175 on Saturday, and motel Saturday night in Kemmerer, Wyoming) Single room in Kemmerer - additional fee Tate Membership (Single $18, Family $36 – please indicate)+ $18/$36 Conference t-shirt – Available only through pre-order! (XS, S, M, L, XL, $16 each. XXL and XXXL also available for $18 each) Donate to the Tate Geological Museum XS XL S XXL M XXXL L + $50 + $16/$18 + Donate Please choose ONE of the following if applicable: Subtotal Student discount (Include a copy of current student ID) - $25 Speaker discount - $55 Total PLEASE COMPLETE THE FOLLOWING Print name for badge: Last First Middle Institution for name badge: Home mailing address: P.O. Box or Street Number City State Zip Phone Email address: In case of emergency please notify: Relative or friendPhone Please specify any dietary requirements: Roommate choice in Kemmerer hotel: Payment must be made at the time of registration. Visa/Mastercard/Discover Card number: CVS: Exp. date: Signature: Date: Check payment Check number: Check for CEU credit or call 307-268-2085 To pay online via the Tate website go to: caspercollege.edu/tate Please mail this registration form and payment to: Tate Conference, Tate Geological Museum at Casper College, 125 College Drive, Casper, WY 82601-4609, or fax form to: 307-268-3308, or register by phone at: 307-268-2447. Please make checks payable to: “Tate Museum.” In the memo section of check put “Tate 2016 conference.” FIELD TRIP DISCLAIMER AND WAIVER OF CLAIMS FORM FIELD TRIP DISCLAIMER AND WAIVER OF CLAIMS FORM In order to participate on a field trip as a participant at the Tate Geological Museum, this release statement must be completed and returned to a Tate Geological Museum staff member prior to participating in the event. I, _____________________________, for and in consideration of being permitted to participate as a participant in the Tate Geological Museum field trip, do hereby fully release Casper College and its board of directors, the Tate Geological Museum, all administrators, instructors, and personnel attached thereto, and their successors, heirs and assignees from all claims for damages or injuries of every kind and description, including, but not limited to, my personal injury and DEATH, while participating as a participant, both as to any right of action which may occur to myself, my heirs and or my personal representatives. I stipulate and agree while participating as a participant to be bound by all orders, rules, regulations, and directions of Casper College and the person or persons charged with supervising my participation as a participant. I understand that in all such activities, one or more Tate Geological Museum or Casper College staff members will be available at all times. In witness whereof, I have hereunto set my signature this ________day of __________________, 20____ Signature of participant: Printed name: Signature of parent or guardian (if under age 18): Witness (not a family member): Please list any aspects of your medical history of which we should be aware, including rare blood type, respiratory or heart problems, physical impairments or limitations, asthma, allergies, epilepsy, diabetes, or other chronic conditions. EMERGENCY CONTACT INFORMATION Name:Relationship: Phone: Cell: Email: FIELD TRIP: Participants must be capable of fairly strenuous physical activity to reach the excavation sites. Wyoming weather can be changeable! T-shirt and jeans are the norm, with boots or tough walking shoes. WATER, a hat, sunglasses, and sunscreen are advisable, but bring a sweater and lightweight rain gear too. Hammer and hand lenses are useful options. RETURN THIS FORM TO A TATE GEOLOGICAL MUSEUM STAFF MEMBER, CASPER COLLEGE, 125 COLLEGE DRIVE, CASPER, WY 82601 • 307-268-2447 7 ? and Answers ©Drawing by Zak Pullen. Q: By Russell J. Hawley, Tate Geological Museum Education Specialist Since the antelope have evolved to outrun the now extinct American cheetah how are they kept in balance? If they are kept in balance by a predator, will the predator evolve or the antelope de-evolve now that there is no need for the extra speed? – Derek Stoops, Lafayette Jefferson High School A: The pronghorn (Antilocapra americana) used to perplex zoologists. It was much faster than it needed to be to escape from wolves, pumas or any of the other predators of the North American continent. Why? The mystery was solved with the discovery of Miracinonyx in 1960. Miracinonyx had a long flexible back and long legs – it was proportioned almost exactly like a modern African cheetah and presumably it was just as fast. During the Ice Age the pronghorn would have needed its speed to escape from this speedy cat. Miracinonyx seems to have become extinct around 11,000 years ago, but the pronghorns remain and they’re still built for speed. I’ve had pronghorns race alongside my car and then cut across the road in front of me for no apparent reason – it’s almost as if they miss being chased! The fast-running Miracinonyx chases a pair of Ice-Age pronghorns on the west slope of the Bighorn Mountains some 12,000 years ago. Tate Museum Geological Times Today the populations of the pronghorn are kept in check by hunters, collisions with automobiles, entanglements with fences during blizzards, and the limits of their food and water supply. Packs of coyotes can sometimes corner and kill pronghorns, and golden eagles take an occasional fawn. If pronghorns lived on an oceanic island, they might eventually lose their ability to run (like the Balearic Cave Goat, Myotragus, did on the island of Mallorca) but here on the carnivore-infested continent of North America something will undoubtedly evolve to fill the vacant niche – perhaps a gracile, fast running descendant of the modern puma. Casper College Tate Geological Museum 125 College Drive Casper, WY 82601 Non-Profit Organization U.S. Postage Paid Permit No. 112 Casper, WY 82601 Tate Museum Event Calendar Geological Times MARCH Tate Museum Minerals • Dinosaurs • Fossils CHANGE SERVICE REQUESTED 5 Saturday Club, “Mammoths and Sabretooths,” 10:30 a.m. 23 Coffee, Tea, and Dee, 7:30-11:30 a.m. 24 Spring Lecture Series, Russell J. Hawley, 7 p.m. 28 Through April 1, Natrona County School District spring break – Tate and Werner Museums’ Raptor Cache Hunt! APRIL 1 Tate Spring Art Show Opening Reception, 3-6 p.m. 2 Saturday Club, “Oceanography and Creatures of the Sea,” 10:30 a.m. 12 Werner Spring Art Show Opening Reception, 3-6 p.m. (Rescheduled from April 8) 14 Spring Lecture Series, Peter L. Larson, 7 p.m. 20 Coffee, Tea, and Dee, 7:30-11:30 a.m. 26 Zoological Illustration Class, 6-8:30 p.m. 27-30 Colorado-Wyoming Association of Museums annual meeting – Casper MAY 4 Last Coffee, Tea, and Dee of the season, 7:30-11:30 a.m. 7 Saturday Club – Fossil Footprints at the Science Zone! 10:30 a.m. Reservations required. Call the Tate to reserve a spot. 9 Tate Spring Art Show closes 21 Adult Members’ Only Field Trip JUNE 3-5 Annual Tate Conference 11 Members’ Only Kids’ Expedition JULY 18-22 Dinosaur Dig – Como Bluff 18-22 Museum Consortium Camp 30 Members’ Only Field Trip – all ages welcome! Mark your calenders: TATE CONFERENCE – June 3-5, 2016
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