May/June 2013 - Casper College
Transcription
May/June 2013 - Casper College
Miner als • Dinosaur s • F ossils Tate Geological Museum Geological Times May - June 2013• Vol 19, No. 6 casp er co l l ege. ed u/ t a t e 3 0 7 - 2 6 8 - 2 4 47 Fossil of the Month – Juvenile Brontosaur Humerus By J.P. Cavigelli, Tate Geological Museum Collections Specialist ©Drawing by Zack Pullen. A few years ago, Brent Breithaupt, the Bureau of Land Mangement paleontologist for the state of Wyoming approached us with some dinosaur bones. He was looking for a home for some Morrison Formation bones that were part of a legal case. It seems someone had been arrested for collecting dinosaur bones on BLM land without a permit. The bones he had collected were recollected by BLM law enforcement and needed to be reposited somewhere. As the Tate Geological Museum is a BLM repository, Brent asked if we would house them. I said “yes.” These bones are now in our collections with BLM evidence tags on them. Later, with the BLM’s blessing, Concordia College in Minnesota collected briefly at the site exploited by the fossil poacher. As Concordia is not a BLM Repository, we arranged for the material they collected to come here to the Tate. Some of the bones were taken back to Minnesota, prepared there and eventually brought to the Tate, but mostly we got a collection of field jackets. Some of our volunteers have been working on both prepared bones and jackets. The featured humerus had been mostly prepared by Concordia people, but Tate volunteer Debbie Strong finished the job here. Melissa Connely, our local Morrison Formation expert, has identified this as a humerus from a young Brontosaurus. The name Brontosaurus has actually been replaced with the name Apatosaurus, but I am old school and like the word Brontosaurus, which was a key part of my second grade dinosaur fascination. Steven Director’s Note Exhibits Update Page 2 Page 5 J. Gould once wrote an essay called “Bully for Brontosaurus” in which he explains why the name should indeed be retained. I vote with Steven J. (The essay can be found in his book of the same name). While Brontosaurus is a common animal in the Morrison Formation, it is pretty exciting to have a bone of a juvenile animal. The humerus is 24 inches long (61 cm); the cast we have on display of an adult Brontosaurus humerus is 39 inches (1 meter) long. The second photo shows Russell Hawley holding the juvenile bone up next to the cast of the adult arm in the museum. It is a multi-year project to prepare these bones, but it may be put on hold for a while. Melissa has also been instrumental in getting the Tate Geological Museum back on the Carlin Ranch near Medicine Bow, Wyo. This is the ranch where the Tate used to dig at Como Bluff years ago. Starting this summer we will be digging again in the Morrison Formation at Como Bluff. We will have our own Morrison Formation bones to prepare, so preparing the Concordia Collection may be put on hold for a while. Stay What’s inside Volunteer Spotlight Page 6 ? and Answers Page 7 2 Director’s Note Correction: ©Drawing by Zak Pullen. Two out of three’s not bad. We gave a date for the Members’ Only Dig three different places in our last newsletter, and only one of them was wrong. We apologize and want to confirm that the Members’ Only Dig is actually June 22, NOT July 22. Africa Talks: Our last talk of the series by Kent Sundell, Ph.D., was postponed by a snowstorm and ended up being given on April 30. The talk was well attended. Author Talk and Book Signing: Tuesday, May 14, 2013 we will host a talk and book signing by Larry HaydenWing, Ph.D., who recently released In the Footprints of Elephants. The event begins at 6:30 p.m. with a talk by Larry and time for questions at the end. Then he will be available for book signings until 8:30 p.m. He has a doctorate in wildlife science and management from the University of Idaho. He spent over 42 years as a research scientist, university professor, and owner/principal scientist of Hayden-Wing Associates. Larry retired in 2009 to write books and short stories. by Deanna Schaff Funding for Patti: I have some good news to report: We have found funding for Patti Wood Finkle to stay here until June 30, 2014. By then we will have information on the Institute of Museum and Library Services grant that we wrote and see what happens next. THIS IS GREAT NEWS! JUNE IS MEMBERSHIP MONTH! It doesn’t make any difference when you became a member of the Tate Geological Museum; your membership is due during the month of June. If you are a new member we invite you to join in June 2013. Individual memberships are $18, family memberships are $36 and a sponsor membership is $1000. A form is included in this newsletter, or you can get one at the Tate gift shop or online. We are continuing to add events designed for members. There will be a Members’ Only Kid’s Expedition on Saturday, June 15 and a Members’ Only Dig on Saturday, June 22. It is possible the adults’ expedition will be to Como Bluff, which is a famous paleontological site. Look it up on the Internet. As plans are finalized you will be notified via E-mail. If you do not have an E-mail address, please call the museum for more details, as we get closer to those dates. You will need to stop by the museum gift shop desk to sign up. Please bring your membership card along. We are planning a second Museum Peep Show for members at a later date. Plus you will get a 10 percent discount on all purchases in the gift shop, bimonthly newsletter delivered to your home address, and E-mail notification of other events at the museum. Raffle for Amethyst Cathedral: Raffle tickets are on sale for a 30” (76cm) amethyst cathedral. The cathedral is on display in the central cube in the lobby at the Tate. Tickets are available at the front desk for $10 each or six for $50. The drawing for the raffle will take place on Monday, June 3 during the ice cream social. You do not need to be present to win. It only takes ONE ticket to win! All proceeds will be used for the Tate Geological Museum Support Fund. Get yours now at the museum. Tater Travels: Over spring break J.P. Cavigelli was part of a Casper College contingent that went to our sister university in Guatemala. While there J.P. gave three talks about paleontology in Wyoming and Guatamala. Our very own Zabdi Lopez, an exchange student from last summer, organized the very first Paleontology Day at the Universidad de Valle de Guatemala around J.P.’s visit and apparently the event was a great success. Summer Digs – Pay to Dig Our summer digs are filling up fast. Here are the current statistics: • June 10-14, full • July 9-13, full • Sept. 9-13, lots of room. This is the time to go, as it is cooler in September See all details on the Tate Geological Museum website at caspercollege.edu/tate or contact J.P. Cavigelli at 307-268-3008 or 307-268-2447. Tate Museum Geological Times 3 Cretaceous Conference: Evolution & Revolution June 1-4, 2013 The Casper College webpage (caspercollege.edu/tate/conference) has the complete schedule, list of speakers, etc. I’ll just hit a few of the highlights. This year it is a joint conference with Wyoming Geological Association and Society of Petroleum Engineers. • A field trip to the western Powder River Basin on June 1. • The first day of talks will be about paleontology featuring some popular returning speakers including Neal Larson, Torrey Nyborg, Josh Slattery, and Marron Bingle-Davis. Lisa Fujita will again be cooking a tasty treat for attendees. • At 7 p.m. on Sunday, we will have an ice cream social and our keynote speaker Pat Druckenmiller, University of Alaska-Fairbanks, will speak on Alaskan dinosaurs. • Our second day of talks will be on the extractive resources and engineering fields on June 3. The keynote speaker will be Christopher Fielding, Ph.D., Department of Earth and Atmospheric Sciences, University of NebraskaLincoln. • The second field trip will take us to Eastern Wyoming to hunt Cretaceous ammonites on June 4. Melissa Stahley-Cummings: Our entire staff is sorry to announce the departure of Melissa Stahley-Cummings. We hired Melissa on a grant in March 2012 as a museums curriculum specialist. Although her time with us is now done and she has had to move on, I could not have asked for a better person to work with. Melissa is a brilliant researcher and had a lot of resources here at the Tate Geological Museum, especially Russell Hawley, J.P. Cavigelli, and Kent Sundell. She absorbed the information like a sponge and transferred that knowledge into educational curriculum topics that are now available on our website. This curriculum covers pre-K to eighth grade for some topics. Most curriculum covers the grades that are stressed in the core Natrona County School District curriculum. Melissa also was asked to write curriculum for the Werner Wildlife Museum and was successful there as well. She wrote a total of 47 lessons that she researched, designed, and placed on our websites. In order to do so she had to overcome a lot of technology problems and learn how to use the program that allowed her to put curriculum on the website. All of this was quite time consuming. She not only did her job well, she was always helping out in both museums whenever we had open houses, activites, presentations, outreach missions, or whatever came up. I cannot thank Melissa enough for all she has done for both the Tate Geological Museum and the Werner Wildlife Museum. Tate Museum Geological Times 4 Museum Passport to Adventure Program By Anne Holman – Fort Casper Museum 2013 is the 11th annual “Passport to Adventure Hunt” offered by the Casper Museum Consortium. From May 15 through August 31, you are invited to pick up your free passport booklet at any Casper-area museum and visit six of the 13 sites listed in the passport. Answer a question at each museum, get your passport stamped, and turn in your answer sheet at the last museum you visit. Correctly completed answer sheets will be entered into a drawing to win prizes featuring all the best things to do in and around Casper: a fishing trip, tickets to concerts, plays, and sporting events, and more! All prizes include Pepsi products. Bring along the whole family and support your local museums! Participating museums: • Audubon Center • The Bishop House • Casper Planetarium • Crimson Dawn Museum • Fort Caspar Museum • Mormon Handcart Center • National Historic Trails Interpretive Center • Nicolaysen Art Museum • Salt Creek Oilfield Museum • The Science Zone • Tate Geological Museum • Werner Wildlife Museum • Wyoming Veterans’ Memorial Museum Visit caspermuseums.org 2013 Museum Adventure Quest Camp for Kids By Anne Holman – Fort Casper Museum July 22-26, 2013, 8:30 a.m. to 3:30 p.m. 4th-6th graders Visit 10 Casper Museums COST: $75; $65 for siblings (includes snacks and transportation) This summer activity is specially designed for children entering 4th through 6th grades and will be held at 10 local museums throughout the week. Preregistration is required and space is limited. To register for camp online using PayPal, please visit the Casper Museum Consortium website: caspermuseums.org. For other payment methods and for more information, call or visit the Casper Planetarium, 307-577-0310. Particating museums: • Audubon Center • The Bishop House • Casper Planetarium • Fort Caspar Museum • National Historic Trails Interpretive Center • Nicolaysen Art Museum • The Science Zone • Tate Geological Museum • Werner Wildlife Museum • Wyoming Veterans’ Memorial Museum Visit caspermuseums.org Tate Museum Geological Times ©Drawing by Zak Pullen. 5 Exhibits Update By Patti Wood Finkle, Museum Exhibits Specialist Recently the exhibits staff, (ok me, but with input from the rest of the staff) have turned their attention to the extractive resources wall for the next exhibit update. We have completed the oil and gas exhibit and are working on the uranium and coal case. The third case, bentonite and trona will be next. Earth and Fire Art Show at the Tate: Earth and Fire is our newest, temporary exhibit of ceramic artwork inspired by the Tate Geological Museum. Mike Olson’s advanced ceramics classes contributed to the show, and the pieces are truly amazing. The 21 works include bowls, vases, free form, and true to life ceramics. The opening of the show was held April 19, 2013. We had about 80 people attend and interestingly, many of them were not our regular folks. We had several new people who had never even been to the Tate! If you were unable to attend, you can still see these beautiful pieces until Wednesday, May 29, 2013. Tate Museum Geological Times Again, we didn’t want to reinvent the wheel with these exhibits, but we did want to update the cases and add some new objects. Additionally we added new text explaining the history of oil and gas in the state and touched on the economic impact here. As Wyoming depends heavily on extractive resources, we also wanted to cover what the resources are used for and how they are extracted. We re-used many of the samples that were in the exhibit before, so thank you to Lynne Swank and associates for gathering those resources for the original oil and gas exhibit! 6 Volunteer Spotlight Who is that man who quietly signs in, goes to one of the prep labs and starts prepping fossils? His name is Ken Anderer. Ken hasn’t always worked on fossils – he didn’t even live in the western part of the United States until 2010 – but we have him here now and are very glad he made the decisions he did. By Deanna Schaff Ken was born and raised in the New York City suburbs and spent most of his adult years in the Washington, D.C. area. With an architectural engineering degree from Penn State he went to work as an engineering designer and project manager for varied historic preservation, medical, institutional, and military building projects across the US and around the world. Because of his extensive travel for both business and pleasure, he became familiar with and especially enjoyed the American West and selected Casper, Wyo. as a great place to retire. He moved permanently to Casper in the summer of 2010. At this point in time he had no background in paleontology other than the usual boyhood fascination with dinosaurs through childhood visits to the Museum of Natural History in New York and design projects at the Smithsonian museums in Washington where he said “Most of the Wyoming dinosaurs seemed to have wound up.” In Casper, Ken discovered the Tate Geological Museum after taking one of J.P.’s “Older Than Dirt” OLLI classes in the summer of 2011. The class included a field trip hunting ammonites near Medicine Bow, Wyo. When J.P. mentioned the need for volunteers at the Tate, Ken jumped at the chance. He said, “Under J.P.’s tutelage, I have been spending the last 24 months learning the ropes of fossil preparation and a little bit of geology and paleontology along the way. I especially enjoy the various field trips, which I have been able to attend. For the past few months I have had the opportunity to help out on Lee Rex” Ken has four children and three grandchildren currently spread across the county from Los Angeles to Baltimore. In June his youngest son is participating in the 100 mile Big Horn Mountain Run near Sheridan, Wyo. and most of the family is planning to attend. When Ken is not helping out at the Tate, he is spending most of his time and resources slowing restoring a 100 year old historic home in Casper, “which, he says, “may take another 50 years or so.” Geology Club Corner The quarries hadn’t been worked for 10 years. An old pipe frame of a canopy had fallen into the pit, while the canvas that once covered it was lying in scraps on the ground. A few large white plaster jackets lay half-finished in scattered pits. One jacket had a young sagebrush growing out of it. “This is ‘Blueberry,’” Melissa Connely, Casper College geology instructor, informed us, pointing out the jackets, “and that’s ‘Muffin.’” Blueberry and Muffin were two finds that had been left behind when paleontologist Robert Bakker. Ph.D. lost his lease to collect dinosaur bones from the Morrison Formation on a ranch near Medicine Bow, Wyo. Now, a crew of Tate Geological Museum volunteers and geology students were visiting the property to clean up the old quarries. It seemed a good way to begin the Tate’s new relationship with the landowners, and it certainly made an interesting day for the crew. The drive in took us along back roads that wound up and down steep hillsides and across gullies. When we got to the quarries, the wind was (very) strong. It flung clouds of dust from the skid-steer loader in everyone’s eyes as we collected old lumber or bits of tarp and piled them in a trailer. A crew of students with shovels helped spread the dirt as the skid-steer dumped it into the old pits. Melissa and J.P. Cavigelli, Tate Geological Museum collections specialist, put up markers to locate the jackets later. When we were finished, the site looked much better – a few patches of bare ground with tire tracks were all that showed disturbance. After the clean up, we went to a nearby micro-site to look for fossils like lungfish teeth or turtle plates. Several people found some nice pieces, but for me, a long crawl back and forth across the exposure didn’t produce anything but bruised knees and a few scraps of “chunkosaurus.” The real adventure began on the way back when Melissa’s pickup suddenly stopped running. Her alternator had failed, and the sky looked like it might start raining at any minute. Luckily, we had plenty of car parts along, in the shape of bungee cords and old two-byfours. The battery from the Tate’s Suburban was made to fit in the pickup, so it could run while the Suburban charged the dead battery. By Annette Hein This worked long enough to get the pickup back to the trailer which had hauled in the skid-steer. Each vehicle squeezed in a few more passengers, the pickup was put on the skidsteer’s trailer, and we were on our way leaving the skid steer and trash trailer behind – some 15 miles back to the highway. As somebody commented, “It’s lucky this didn’t happen in a really isolated spot.” J.P., Brian, (Melissa’s husband) and Melissa returned the next day to retrieve the abandoned trailer and skid-steer. Who wouldn’t want to spend the day driving out on back roads, hunting for fossils, reinforcing the Tate’s good reputation, and helping the landscape look a little nicer? Tate Museum Geological Times 7 ©Drawing by Zak Pullen. ? and Answers A: Q: How many species of Apatosaurus were there? And what were the differences between them? Apatosaurus excelsus is the most common species. Its bones have been found at Como Bluff, at the Sheep Creek and Bone Cabin quarries (see stratigraphic diagram below), and in Colorado. The first Apatosaurus excelsus mount was assembled in the Yale Peabody Museum in New Haven. This specimen was missing the skull, hands, feet and the distal half of the tail; the mount was completed by using bones from other Apatosaurus specimens and sculpting the remaining bones in plaster. The A. excelsus at the American Museum of Natural History in New York was found by Walter Granger at the 9-Mile Quarry in Wyoming. The Field Museum of Natural History in Chicago has an A. excelsus, too. The neural spines on the cervical and anterior thoracic vertebrae were bifurcated, forming a series of U-Shaped brackets. Since vertebrae Tate Museum Geological Times By Russell J. Hawley, Tate Geological Museum Education Specialist – Donna Hunter, Casper, Wyo. are among the most commonly found bones of sauropod dinosaurs, this is a very useful diagnostic. A. excelsus reached a length of almost 22 meters and a mass of over 15 tons. Apatosaurus louisae has only been found at Dinosaur National Monument in Utah. Ironically, this rarest Apatosaurus species is also the most well-known, being the only species for which a complete skeleton is known, and the only species for which we have an associated skull. A. louisae is very similar to A. excelsus, although the bifurcated neural spines form a V-shape rather than a ‘U.’ Apatosaurus ajax was the last and largest Apatosaurus species, found at Morrison Quarry 10 and in the Breakfast Bench fauna. A. ajax had a longer, thinner neck than the earlier species, and longer legs and smaller hips. No skull has been found. In spite of its slender build, this was the heaviest Apatosaurus species. Large A. ajax individuals were over 23 meters long and massed almost 20 tons. ‘Bertha’ is a partial skeleton that was described as a new species of Apatosaurus by Jim Filla and Pat Redman. In 1998 Robert Bakker, Ph.D., re-described it as a separate genus, Eobrontosaurus. ‘Brian’ is the most complete Apatosaurus skull, found by Melissa Connely at the Nail Quarry. Unfortunately, without associated postcranial bones Brian cannot be assigned to a particular species. Elosaurus parvus was based on a partial skeleton missing the feet, ribs, much of the vertebral column and (of course) the skull. Elosaurus is probably just a gracile individual of A. excelsus. Casper College Tate Geological Museum 125 College Drive Casper, WY 82601 Non-Profit Organization U.S. Postage Paid Permit No. 112 Casper, WY 82601 2013 Tate Museum Event Calendar May Geological Times 14 Tate Museum Minerals • Dinosaurs • Fossils CHANGE SERVICE REQUESTED Members’ Only Dig Larry Hayden-Wing talk 6:30-8:30 p.m. June MEMBERSHIP MONTH 1-30 1-4 10-14 15 22 Renew Your Membership Now…. Tate Conference Summer Dig – Como Bluff Members’ Only Kids’ Expedition Members’ Only Dig July June 22, 2013 The Tate Geological Museum is planning a full day “Members’ Only” dig to the Como Bluff site in the Medicine Bow area. The fossils found in this area are from the Jurassic and are about 150 million years old. Details will be E-mailed to members the first week of June. Transportation will be furnished by the Tate Geological Museum. 9-13 Summer Dig – Lusk 22-26 Consortium Camp September 9-13 Dino Dig Scan to find out more about the Tate Geological Museum!