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News and Outreach Events 2016
IU Research Scientist Chusi Li is 2017 SEG Exchange Lecturer
Dr. Chusi Li was selected as the 2017 International Exchange Lecturer by the Society of Economic Geologists. This society currently has 7000 members worldwide. It was established in the US more than 100 years ago and is now an international organization. It also means he will be traveling more frequently next year.
Professor Chanh Kieu is featured in a WTIU Indiana Newsdesk article on climate change
Titled, Expert: High Temperatures Could Show Overall Warming Trend, IU Atmospheric Sciences professor Chanh Kieu talks about warming trends in this short news clip from WTIU.
IU Paleontology Collections Manager to speak at the Peebles Memorial Lecture
Gary Motz, IU Paleontology Collections Manager. Project Coordinator for Digitization Activities, Center for Biological Research Collections Indiana University. Title: Pervasive Technology and cyberinfrastructure working for biodiversity informatics and collection-based research . November 9, 9:30-11:30 a.m. Herman B. Wells Library Scholars’ Commons, Hazelbaker Lecture Hall Room E159.
Abstract: Indiana University’s research community has a wealth of resources for understanding the history of life on our planet that take advantage of tremendous human capital, collections of physical objects, and remarkable technological advances. When these assets work together in synergy, the potential for innovation in ‘big-data’ driven questions about Earth’s flora and fauna (past and present) is dramatically enhanced. The Center for Biological Research Collections has partnered with UITS and the Indiana University Libraries to bring biodiversity collection research into the 21st century by building upon well over a century’s worth of specimen collections to enhance research, teaching, and broad engagement of our collections using augmented reality, high-performance and high-throughput computing, machine learning, citizen-science, and 3-D printing. This lecture will present the broad applicability of technological innovations and the use of IU cyberinfrastructure in dramatically enhancing the discoverability, accessibility, and research potential of a treasure trove of invaluable biodiversity collections.
BIO: Gary is a paleobiologist, but wears many different hats as the Digitization Coordinator for the Center for Biological Research Collections. His research focuses on the formation of biodiversity hotspots through deep time and the ecological significance of speciation and predator/prey dynamics in southeast Asia. He has traveled to museums and conducted field work all over the world in order to put together a big picture understanding of why biodiversity is critical to the health of the planet using digitized bio-collections and rich metadata contexts. Advancement of cyberinfrastructure and technological innovation are at the crux of what makes biodiversity research all the buzz in the biosciences community.
In Memory: Dr. Carl Rexroad 1925-2016
From Dr. John Steinmetz, Indiana State Geologist Emeritus: It is with great sadness that I inform you of the passing of Dr. Carl Rexroad. He died quietly on the morning of Thursday, October 27, with his wife Carol at his side.
Carl had a remarkable career spanning over 60 years as a micropaleontologist, stratigrapher, and geologist. He had an affable personality, was a pleasure to be with, and certainly enjoyed IU basketball, and in earlier years, his softball.
Carl’s research interests included: conodont biostratigraphy and paleontology, including paleoecology, comprise Rexroad's primary interest. He has worked mostly with Mississippian, Pennsylvanian and Silurian faunas. Goals included a stratigraphic zonation of the Pennsylvanian of the Illinois Basin and interpretation of the depositional environments of the Pennsylvanian carbonates and of black shales associated with the coals. Both long cores and exposed limestone units are being studied. Primary emphasis is on Desmoinesian rocks but those of the Atokan and Missourian Series are also included. He is involved with several others in refining the Mississippian-Pennsylvanian boundary in southern Illinois where the boundary is locally conformable. Most of his work had been in the Midcontinent, but it ranged from Maine to California and England to China and Australia and includes extensive collecting in Europe.
Services will be held at 2 p.m. Sunday, Nov. 20, at Trinity Episcopal Church in Bloomington. A reception will follow at Meadowood Retirement Community from 3 p.m. to 5 p.m.
Memorials may be made to the Carl B. Rexroad Geological Sciences Endowment fund at the University of Missouri, 302 Reynolds Alumni Center, Columbia, MO 65201. Online condolences may be given at www.DayDeremiahFryeFuneral Home.com.
President’s Medal presented to IU scholar David Dilcher
October 26. Quoting the IU Newsroom: Eminent scholars in paleobotany and in cinema studies at Indiana University Bloomington were presented with the highest honor an Indiana University president can bestow.
David Dilcher, professor emeritus of biology and geology, and James Naremore, Chancellor’s Professor Emeritus in communication and culture, English and comparative literature, received the President’s Medal for Excellence.
IU Bloomington Provost and Executive Vice President Lauren Robel presented the medals on behalf of IU President Michael A. McRobbie to Dilcher and Naremore at the 10th annual Academic Excellence Dinner on Oct. 20. The medal, which reproduces in silver the jewel of office worn by IU’s president at ceremonies, is given to recognize exceptional distinction in public service, service to the university, achievement in a profession or extraordinary merit and achievement in the arts, humanities, sciences, education and industry.
"Professors Dilcher and Naremore epitomize the values that make IU Bloomington a great place: outstanding scholarship and teaching, and generosity and mentorship to colleagues," Robel said. "I was honored to present them each with the President’s Medal on behalf of President McRobbie and the entire IU community."
Perhaps the world’s best-known paleobotanist, Dilcher is known for his research of the evolution of angiosperms, one of the planet’s earliest flowers. He was one of the first to change a widely held notion in the 1950s and 1960s that flowers were not adequately preserved in the fossil record. His discovery of well-preserved flowers from the Eocene Epoch in Tennessee, and from the Cretaceous Period in Kansas, Nebraska and China, led to the recognition that flowers can be treasure troves of information about the evolution and ecology of ancient angiosperms.
Dilcher joined the IU faculty in 1965 and initiated a class in evolutionary biology that was among his most popular and enduring teaching legacies. He led many students and colleagues on numerous collecting trips to Tennessee and Kentucky and throughout southern Indiana, creating a collection of about 100,000 plant fossils. In 1990, Dilcher became graduate research professor in the Florida Museum of Natural History, at the University of Florida. He returned to IU in 2010, where he continues to do important research.
Last year, Dilcher and several European colleagues identified a 125 million- to 130 million-year-old freshwater plant as one of earliest flowering plants on Earth - the proverbial "first flower." Earlier this year, he co-authored a study that identified a Jurassic-age insect whose behavior and appearance closely mimic a butterfly - but whose emergence on Earth predates the butterfly by about 40 million years.
Dilcher earned bachelor’s and master’s degrees at the University of Minnesota and a doctoral degree at Yale. He has been president of the Botanical Society of America and vice president of the International Organization of Paleobotany. He is a two-time Guggenheim Fellow, a fellow of the National Academy of Science and a fellow of the American Association for the Advancement of Science. Link to article
Science Fest 2016
Giant thanks to all the volunteers who contributed to a superb Science Fest today! We've successfully turned a new generation of young scientists on to the glories of earth and atmospheric sciences. Big kudos to the Science Fest organizing team, led by Ian Wang and Anna Jessee, and to our faithful faculty leader, Cody Kirkpatrick! And thanks to Polly Sturgeon and her colleagues at IGS for a superb collaboration in the Earthquake Zone!
Earthquake Shakeout Drill at IU
No, it’s not students overwhelmed with mid-semester academic stress...it just so happened that Dr. Michael Hamburger was teaching a class on natural disasters when IU held its first Earthquake Shakeout Drill on October 20. When the mock earthquake occurred in the middle of his class, Dr. Hamburger helped the class practice how to protect themselves to prepare for a future earthquake that will inevitably strike south-central Indiana.
Indiana University students and employees on all IU-administered campuses were encouraged to practice the appropriate response during an earthquake as part of the Great Central U.S. Shakeout on Thursday.
IU is in the proximity of the Wabash Valley and New Madrid seismic zones, making IU’s participation more than just an idle exercise. In advance of the drill, IU faculty, students and staff were asked to review the procedures (summarized at the link below) so that they could be prepared in the event of a future earthquake. Protect IU Earthquake Overview
Announcing the new paleontology platform on Notes From Nature!
For Immediate Release: The Indiana University Paleontology Collection has partnered with Notes From Nature to create a new label transcription service specifically for fossils! Notes From Nature creates and provides infrastructure to enable collaborative efforts between research scientists and citizen scientists. This multi-faceted approach enables Indiana University researchers to grant public access to images of the incredible fossils in our collection (we’ve got over 1.5 million fossils!) but also enables interested individuals to assist in the digital data generation process (we»ve got quite the backlog….over 1.5 million fossils!) and metadata curation.
Our first transcription expedition consists of a significant collection of Cambrian trilobites casted by Charles Deiss, of Indiana University. Dr. Deiss visited many world-class institutions to make these plaster molds as perfect replicas of the fossils contained in the original museums for his research. Plaster molds were used by Dr. Deiss and other scientists in the early part of the 20th century because 3D scanning and printing didn’t exist yet! Fortunately for us, data sharing is considerably easier now and with new technology and the support of volunteers to assist in this effort to uncover the secrets of the history of life on Earth, we’re getting closer to new discoveries every day!
IU Geological Sciences will be at Science Fest, Saturday, October 22nd 9:00 a.m. to 3:00 p.m.
The Indiana university Geophysical Society (IUGS) is preparing for this year’s Science Fest. Volunteers will be needed for a number of activity stations. Faculty members and students are very welcome to join, and help is very much appreciated!
For the ones who missed our great pizza party (I mean meeting), there are still chances for you to sign up and get involved in this largest community outreach event on the IU campus. This is a great opportunity for us to promote ourselves and benefit the future of our earth science community, and get a free t-shirt and lunch in the process! Visit this page in the College of Arts + Sciences to learn more about Science Fest, and this page to view last year’s Geological Sciences activities. If you want to volunteer you can 1) contact Ian Wang for more information or 2) go to this form and sign up.
Michael Hamburger at National Academy of Science
Professor Hamburger has been away from the Department for the past year, representing Indiana University in our nation’s capital.
Last spring, Hamburger was selected to take part in the National Academy of Science’s Jefferson Science Fellowship program, the first IUB faculty member to take part in this prestigious program. Each year, the fellowship brings a dozen scientists and engineers to Washington to serve as foreign policy advisors to the U.S. Department of State and the Agency for International Development. Hamburger landed an unusual posting, as a Senior Advisor in the State Department’s Office of Religion and Global Affairs. The Office, created by Secretary John Kerry in 2013, is something of a policy think-tank, focusing on the role of religious dynamics in all of the major global issues that play a role U.S. foreign policy. As the only scientist in the office, Hamburger’s work has focused on variety of global environmental issues, including climate change, public health, wildlife trafficking, and natural disasters. His office’s work with religious groups both domestically and internationally contributed to the successful negotiation of the landmark climate agreement at the COP-21 conference in Paris.
Through Hamburger’s work with the State Department, he has initiated a number of projects engaging religious groups in disaster risk reduction. One of the most exciting of these is a project, developed in collaboration with the US Embassy in Islamabad, Pakistan, involves collaboration between U.S. and Pakistani scientists and engineers to develop a training program for religious leaders and madrassa (religious school) instructors in earthquake-threatened areas of Pakistan.
As a separate initiative that will occupied his last month in the Fellowship program, Hamburger served as an Embassy Science Fellow in Kathmandu, Nepal, where he will be working with the USAID office of Disaster Risk Reduction, Resilience, and Reconstruction (or “DR4” as they call it) on a multi-hazard risk assessment for the areas affected by the devastating 2015 Nepal earthquake. The project is intended to help train Nepali geologists and engineers in the challenging hazard assessments involved in return or relocation of the 20,000+ Nepali citizens displaced by last year’s devastating earthquake.
Hamburger hopes to bring some of the project work back to IU for student-based research projects. One initial product of Hamburger’s Washington work: IU is now a charter institution in the State Department’s Diplomacy Lab program, which will bring IU faculty and students as participants in State Department research projects, starting in fall of 2016.
In Memory: Robert Blakely
A long-time friend and colleague, Robert (Bob) Blakely, passed away late last week at his home in Baton Rouge at the age of 95. Bob was a highly talented geophysicist who worked both with the Department of Geology and the Indiana Geological Survey from 1949 through his retirement in 1986. His broad research and teaching interests ranged from applied geophysics to earthquake hazards to potential fields and meteorology. He worked closely with geophysics faculty Al Rudman and Judson Mead on problems of mid-continent basement geophysics and was a mentor to me and Gary Pavlis early on in our careers at IU. He is survived by "the love of his life" Rosanna Blakely, his wife of 73 years and daughter Linda Blakely Junker, both in Baton Rouge.
Bob was a delightful colleague and friend, and he will be greatly missed. Additional details on memorial arrangements and contact information to follow.
In Memory: Professor Emeritus Donald Hattin
Professor Emeritus Donald Hattin passed away peacefully on Friday, June 24, 2016 in Bloomington Indiana.
Dr. Hattin joined the Department of Geological Sciences at Indiana University as an Assistant Professor in 1954 and remained with us until his retirement in 1995.
He received a B.S. in Geology from the University of Massachusetts-Amhers in 1950, an M.S. in Geology from the University of Kansas in 1952, and a Ph.D. in Geology from KU in 1954. Click here for more information.
A celebration of Dr. Hattin’s life and work will be held on Saturday, July 23rd at 11:30 am in the Tudor Room at the IU Memorial Union, with a reception to follow in the University club rooms.
SGE Hosts Students from St. Charles Elementary
A group of 46 first grade students from St. Charles Elementary School visited the Department of Geological Sciences on May 12. Carley Gasaway, Kevin Webster, and Alex Zimmerman led hands-on geology activities with the students, covering rock and mineral properties, plate tectonics and Pangaea, along with fossils and ancient life. The students were able to test mineral properties with a variety of mineral samples, reconstruct the continents to form Pangaea, and examine Cretaceous marine fossils and replica dinosaur skulls to think about ancient animal diets.
Amanda Whaling’s Poster Wins Award at North Central GSA Meeting
Amanda’s poster entitled, Quantifying Avulsion Activity on river Deltas from 1984-2012, presented at the recent North-Central Section Geological Society of American meeting, has received a Great Lakes Section SEPM best undergraduate student poster award from the Great Lakes Section of SEPM (the Society for Sedimentary Geology). Amanda is an undergraduate student in Doug Edmonds’ research group.
Chaos limits predictability of hurricane intensities. If a butterfly sets off a hurricane halfway around the world, how well can we forecast the storm’s strength?
Quoting from Richard J. Fitzgerald in Physics Today: "Weather is the archetypical example of a chaotic system. Indeed, it was his calculations of weather models that led Edward Lorenz to his landmark 1963 paper that helped launch modern chaos theory. Lorenz famously gave a 1972 talk titled "Predictability: Does the flap of a butterfly’s wings in Brazil set off a tornado in Texas?" Chanh Kieu and Zachary Moon at Indiana University Bloomington now report on a related question: How well can we forecast the intensity of a hurricane? ...Using a minimal dynamic model, Kieu and Moon found that the limiting speed is stable: Simulated hurricanes approach that equilibrium value regardless of their initial conditions. Yet the errors in forecasts of hurricane intensity don’t go away as one might expect; rather, speed errors level off at about 8 m/s (18 mph) after four to five days in real-time intensity forecasts. Through full-physics simulations, the pair discovered that those errors arise from a so-called chaotic attractor at the maximum potential intensity limit. That finding implies that improvements in intensity forecasts are more likely to come from better modeling of the large-scale environment than from better knowledge of the storm's initial state. Even so, the researchers note, the maximum range of predictability is only about three days, and likely shorter for mature hurricanes."
Citation: C. Q. Kieu, Z. Moon, Bull. Amer. Meteorol. Soc., in press. DOI
IU Paleontology Collection Open House
Image: Collections Manager Gary Motz illustrates the size difference between a regular snake vertebra and a vertebra from the ancient Titanoboa snake.
Held on April 30, 2016, the open house to celebrate the re-opening of the Indiana University Paleontology Collection was very well attended by both current and former IU students and faculty and by the general public.
The Collection is a research-focused repository for fossil specimens from Indiana and around the world operated by the Department of Geological Sciences, and is now housed on the 5th floor of the Geology building.
As part of the celebration, the Gary Lane Memorial Fund to support the collection was announced. If you want to make a donation to the fund, please click on the "Give Now" button (right) and type N. Gary Lane Paleontology Collection Fund into the search area.
Crossroads Geology Conference
The annual Crossroads Geology Conference was held on April 1st and 2nd in the Department of Geological Sciences. The presentation winners are:
- Undergrad Poster - Amanda Whaling and Michael Lara
- M.S. Poster - Kerry Neil, IU - SPEA
- PhD Poster - Rebecca Caldwell
- Undergrad Oral - Madison Ferrara
- M.S. Oral - Ciara Mills
- PhD Oral - Ryan Sincavage, Vanderbilt
An incredible amount of effort goes into planning the conference, and we wanted to take a moment to thank everyone who dedicated not just two days, but months of planning to ensure its success.
A particularly important thank you goes out to Pat Kane and Carley Gasaway for planning everything related to food (and dealing with any last minute, behind the scenes issues). Thank you to Cameron Stewart and Annie White, this year’s co-chairs (in training), for so willingly and gracefully taking on this large task. Thank you to this year’s oral session hosts, John Kearney and Cameron Stewart. Thank you to the rest of this year’s Crossroads Committee (as well as helpful bystanders!) for picking up all of the remaining slack (often, without even needing to be asked), including Anthony Frushour, Ellen Reat, Devon Colcord, Steven Davey, Elizabeth Olliver, Ciara Mills, James Lee, Molly Williams, Nic Downton, Michael Lara, and Ryan Sincavage.
Thank you to all of the wonderful staff members that helped out at every turn, in particular John Hettle, Mary Iverson, Pam Christenberry, Erica Kendall, Karla Lewis, Tammi Duzan, Diane Dupree, Ruth Droppo, John Walker, Terry Stigall, and Megan Divine.
Thank you to Lisa Pratt for all of her support (and for organizing the monetary donation from the department). Thank you to Jeremiah Mickey for helping out with budgetary needs, and Claudia Johnson for all of her support as the SGE faculty advisor. Finally, thank you to all 20 amazing Judges who spent the weekend interacting with and supporting students!
GeoSci Graduate Student Rebecca Caldwell Won IU Thesis Competition
Rebecca Caldwell, a student in Doug Edmonds' group, won the Three Minute Thesis Competition at IU on February 11, 2016. She was awarded first prize in the IU competition (out of 22 participants) for her three minute presentation. She won $250 and the right to represent IU and the department in the Midwest Association of Graduate Schools final competition April 8th in Chicago. In Chicago she will present a three minute talk on How are river deltas controlled by global environmental conditions?
IU Paleontology Collection Open House April 30, 2016
The Department of Geological Sciences Geobiology faculty are hosting an Open House to celebrate the re-opening of the Indiana University Paleontology Collection.
The Collection is a research-focused repository for fossil specimens from Indiana and around the world operated by the Department of Geological Sciences. Founded in 1903 by IU geologist E. R. Cumings, the Collection now contains an estimated 1.3 million fossils that document life on Earth for the last 520 million years.
We have just moved the entire Collection into new facilities with financial assistance from the National Science Foundation and the College of Arts and Sciences and have embarked on a partnership with the IU Herbarium and William R. Adams Zooarchaeology Collection to invigorate research using the University’s extensive and unique specimen holdings.
Prof. William Ausich, a prominent paleontologist and IU Alum, will speak about life in the ancient Midwest and about the importance of the IU Paleontology Collection for scientific research. Details and the schedule of events can be found on this website.
NIOSH announces appointment of Jessica Kogel (née Elzea) as new Associte Director for Mining
Jessica M. Elzea received her Ph.D under Haydn Murray and Lisa Pratt in 1990. Her dissertation title is Geology, geochemistry, selected physical properties, and genesis of the Cretaceous Clay Spur Bentonite in Wyoming and Montana. Link to her dissertation
WASHINGTON, D. C.: The National Institute for Occupational Safety and Health (NIOSH) announces the appointment of Jessica Kogel, Ph.D., as the new Associate Director for Mining in the Office of the Director, effective February 8, 2016.
In this role, Dr. Kogel will lead the development and implementation of a dynamic research program focused on ensuring the health and safety of mine workers. She will also work to ensure the program continues to have the resources needed to carry out its responsibilities of conducting a multi-faceted and impactful research agenda.
"Dr. Kogel brings with her expertise and experience that will be invaluable to NIOSH as we look to the future of mining research," said NIOSH Director John Howard, M.D. "I am pleased to welcome her and confident in her leadership to continue the critical work to improve the health and safety of our nation’s miners."
Dr. Kogel brings with her over 25 years of experience and has held a number of senior positions in the mining industry. Prior to joining NIOSH, she was the Senior Manager for Mining and Geology at Imerys S.A., a French multinational company which specializes in the production and processing of industrial minerals. In addition to serving on the NORA Mining Sector Council, Dr. Kogel serves on the editorial board of the Mineral and Metallurgical Processing Journal. She is the author of numerous articles in minerals research. She holds four patents in the field of minerals geology.
She has been actively involved in professional organizations, serving as president of the Society of Mining, Metallurgy and Exploration (SME) in 2013 and continues to serve on the Board of Trustees of the SME Foundation. She is also the Vice-Chairman of the Board of the National Mining Hall of Fame and Museum.
Dr. Kogel received a Bachelor of Arts degree in Earth Science from the University of California at Berkeley, a Master of Science degree in Geology from Indiana University in Bloomington, Indiana, and a Doctor of Philosophy degree in Geology also from Indiana University. (NIOSH)
Indiana University and Virginia Tech geochemists show experimental verification of key principle
Quoting IU Newsroom: Geochemists at Indiana University and Virginia Tech have developed and demonstrated a technique for assessing the validity of a principle that has long been important in thermodynamics and chemical kinetics but has proven resistant to experimental verification. Called the principle of detailed balance, the concept is widely used in models to ensure the long-term safety of environmental projects such as storage sites for nuclear waste and for carbon dioxide.
The study, A stable isotope doping method to test the range of applicability of detailed balance was published in Geochemical Perspectives Letters, a publication of the European Association of Geochemists. Co-authors are IU postdoctoral researcher Zhaoyun Liu and doctoral student Yilun Zhang; J. Donald Rimstidt of Virginia Tech; and Honglin Yuan of Northwest University in Xian, China.
"Even though this principle is the cornerstone of a great deal of chemistry and quantum mechanics, it is difficult to demonstrate," said Chen Zhu, professor of Geological Sciences in the College of Arts and Sciences and an author of the study. "We have assumed that it works in many situations without experimental verification." This work was funded by the National Science Foundation. Link to the IU Bloomington Newsroom article.
Crossroads Geology Conference Abstract Deadline
The student members of the Rho chapter of Sigma Gamma Epsilon at Indiana University invite you to participate in the annual Crossroads Geology Conference at Indiana University. This conference is a student-organized event featuring research presentations by graduate and undergraduate students in the geological and environmental sciences from a number of regional colleges and universities, at Indiana University in Bloomington.
The conference will be held on April 1st and 2nd in the Department of Geological Sciences. If you are interested in participating, the deadline for abstracts is March 23. More information is available on the Crossroads website.
IU Graduate Named University President
Stephen Wells is an active member of our department Advisory Board. He grew up in Bloomington and his sister stills lives in the Unionville area. His brother-in-law is Jeremiah Young who owns Nature’s Way landscape firm.
(Compiled by Michael Reschke 812-331-4370 firstname.lastname@example.org) Former Bloomington resident and Indiana University graduate Stephen G. Wells has been selected as the New Mexico Institute of Mining and Technology’s 16th president.
He served as president of the Desert Research Institute in Nevada since 1999. Before that, he was the graduate program director for the Department of Earth Science at the University of California-Riverside from 1991 to 1995. He also served on the faculty in the Department of Geology at the University of New Mexico from 1976 to 1991.
Wells earned his bachelor’s in geology from Indiana University in 1971, and his master’s and doctorate, both in geology, from the University of Cincinnati in 1973 and 1976. He will take office on July 1, 2016.
IU Paleontology Collection seeking volunteers
Are you looking for a volunteer position? The IU Paleontology Collection, located on the 5th floor of the Geology Building, is now open and available for research purposes. We are currently seeking volunteers from the IU and Bloomington community to help with the daily management of the collection. Contact Gary Motz for more information
Graduate Student Rebecca Caldwell AGU Outstanding Student Paper Award
Rebecca Caldwell, a graduate student in Doug Edmonds' group, won an Outstanding Student Paper Award at the 2015 American Geophysical Union meeting in San Francisco. Her paper was titled Developing a truly global delta database to assess delta morphology and morphodynamics. Link to the award | DOI
Geological Sciences Professor Emeritus David Dilcher Co-Authored a paper in Proceedings B of The Royal Society Publishing
Image credit: Vichai Malikul, Entomology Department, Smithsonian National Museum of Natural History. Oregramma illecebrosa consuming pollen drops on the frutification of a bennettitalean plant (Williamsonia).
The evolutionary convergence of mid-Mesozoic lacewings and Cenozoic butterflies
Abstract: Mid-Mesozoic kalligrammatid lacewings (Neuroptera) entered the fossil record 165 million years ago (Ma) and disappeared 45 Ma later. Extant papilionoid butterflies (Lepidoptera) probably originated 80–70 Ma, long after kalligrammatids became extinct. Although poor preservation of kalligrammatid fossils previously prevented their detailed morphological and ecological characterization, we examine new, well-preserved, kalligrammatid fossils from Middle Jurassic and Early Cretaceous sites in northeastern China to unravel a surprising array of similar morphological and ecological features in these two, unrelated clades. We used polarized light and epifluorescence photography, SEM imaging, energy dispersive spectrometry and time-of-flight secondary ion mass spectrometry to examine kalligrammatid fossils and their
environment. We mapped the evolution of specific traits onto a kalligrammatid phylogeny and discovered that these extinct lacewings convergently evolved wing eyespots that possibly contained melanin, and wing scales, elongate tubular proboscides, similar feeding styles, and seed–plant associations, similar to butterflies. Long-proboscid kalligrammatid lacewings lived in ecosystems with gymnosperm–insect relationships and likely accessed bennettitalean pollination drops and pollen. This system later was replaced by mid-Cretaceous angiosperms and their insect pollinators.
Link to the on-line paper | PDF
Geosci faculty member Chanh Kieu’s research is featured in the Quarterly Journal of the Royal Meteorological Society
A recent research study by Chanh Kieu is now featured on the Quarterly Journal of the Royal Meteorological Society (November issue, 2015). In this study, he was able to demonstrate for the first time the stable equilibrium of the hurricane maximum potential intensity (MPI) under the wind-induced surface heat exchange hypothesis. The MPI solution was first found in 1986 by Emanuel, but its stability has been a long conjecture since then. Chanh’s recent work on QJ tackles this stability issue directly, thus answering a standing question related to the MPI equilibrium. More details can be found in this link: http://onlinelibrary.wiley.com/doi/10.1002/qj.2015.141.issue-692/issuetoc
Recent publication names a new species after Professor Emeritus Don Hattin
A publication titled, "Origin and phylogeny of the Cretaceous thoracican cirripede family Stramentidae" by A.S. Gale, which appeared in the Journal of Systematic Paleontology, includes a new species named Leweslepas hattini sp. nov.
Abstract: A cladistic analysis of basal scalpellomorph cirripedes was undertaken in order to identify the phylogenetic position of the Stramentidae. This yielded a well-supported tree, in which the family is positioned crownwards of Archaeolepas, but basal to the families Scalpellidae and Zeugmatolepadidae. A new genus, Loriolepas, is described to accommodate some species previously referred to Archaeolepas. Basal scalpellomorphs display a remarkable change in shell mineralogy from calcium phosphate to calcium carbonate (Eolepas to Archaeolepas); the latter group is identified as a monophyletic clade, the Thoracicalcarea nov. A revised taxonomy of the predominantly Late Cretaceous cirripede family Stramentidae is presented. Stramentidae are subdivided into two subfamilies, Loriculinae subfam. nov., and Stramentinae, based on characters of tergum, carinolatus and peduncular plates. The former subfamily includes Loriculina Dames, 1885, Metaloriculinagen. nov. and, doubtfully, Blastolepas Drushchits and Zevina, 1969, and three new species are described, Loriculina ifrimae sp. nov., Metaloriculina stramentioides sp. nov and Metaloriculina norvicensis sp. nov. The Stramentinae include Leweslepas gen. nov., Stramentum Logan, 1897 and Parastramentum gen. nov. New species are Leweslepas hattini sp. nov, L. hauschkei sp. nov, L. wrightorum sp. nov, Parastramentum albertaensissp. nov, P. brydonei sp. nov, P. peakei sp. nov, Stramentum alekseevi sp. nov and S. praecursor sp. nov. Cladistic analysis of the Stramentidae, based on 25 characters, supports the monophyly of the family, but relationships between subfamilies and genera are poorly resolved. However, in north-west Europe there is an evolutionary morphocline, stratigraphically calibrated, from the early Cenomanian Leweslepas hauschkei gen. et sp. nov. through the middle Cenomanian Stramentum praecursor sp. nov. to the late Cenomanian–Turonian S. pulchellum. A split from this lineage is found in the Western Interior Basin of North America, and the early Turonian S. canadensis gave rise to the middle Turonian S. elegans, which lived epibenthically. Stramentum elegans gave rise to Parastramentum gen. nov. Here is a link to the paper (PDF)