A recent study by a team of Syracuse University geologists has punched holes in a relatively new theory of species evolution called coordinated stasis; the theories involved are based on findings from fossil-bearing rocks that underlie Central New York. The SU study was published in “Geology,” the premier journal of the Geological Society of America.
First proposed in 1995 by Carl Brett of the University of Cincinnati and Gordon Baird of the State University of New York at Fredonia, coordinated stasis attempts to describe the emergence and disappearance of species across geologic time by suggesting that species living together in the same environment go through long periods of stability—some six million years—and then undergo a rapid, almost complete turnover, during which old species disappear and new ones emerge. Until 1995, most researchers believed that species emerged and disappeared independent of each other throughout time.
“Our study suggests that there may be more variability in species composition through time than predicted by coordinated stasis,” says Linda Ivany, one of the co-authors of the SU study. “It will be the blueprint study against which other researchers will present their data sets to determine whether coordinated stasis is present or not.”
The SU study resulted from research that lead author Nicole Bonuso G’01 conducted for her master’s thesis project in the Department of Earth Sciences and an analysis of some 20 years of fossil data—38,000 specimens—compiled by Bonuso’s faculty advisors and co-authors Cathryn Newton, dean of The College of Arts and Sciences, and Prof. James C. Brower. The data were collected from the Central New York Middle Devonian Hamilton Group, the original test case for coordinated stasis, which is characterized by beautifully preserved and richly diverse fossils that date back more than six million years.
Judy Holmes | EurekAlert!
A promising target in the quest for a 1-million-year-old Antarctic ice core
24.05.2018 | University of Washington
Tropical Peat Swamps: Restoration of Endangered Carbon Reservoirs
24.05.2018 | Leibniz-Zentrum für Marine Tropenforschung (ZMT)
A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.
The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...
At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.
At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...
There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
02.05.2018 | Event News
13.04.2018 | Event News
12.04.2018 | Event News
24.05.2018 | Ecology, The Environment and Conservation
24.05.2018 | Medical Engineering
24.05.2018 | Physics and Astronomy