HOME >> BIOLOGY >> NEWS
An Equal Opportunity Extinction? Cincinnati Geologists Find Global Impact from Permian Die

Cincinnati -- Whatever caused the world's largest mass extinction event apparently did not play favorites.

University of Cincinnati graduate student Stewart Ebersole and Arnold Miller, professor of geology at UC, will report Wednesday, Oct. 30 during the annual meeting of the Geological Society of America that the Late Permian mass extinction was global in its extent and hit all marine areas with roughly the same effect.

Traditionally, geologists believed that tropical areas and high-diversity marine environments such as reefs were hit hardest during mass extinction events. Cooler areas of the globe and polar regions appeared to be spared the most dramatic effects of mass extinctions.

However, when Ebersole and Miller examined data on articulate brachiopods, which were diverse groups at the time, they found no trend at all. "Early on, I expected to see that the tropics would be smashed," explained Ebersole. "But extinction rates were consistent from pole to pole. All the areas were being hit in a similar manner."

To conduct his analysis, Ebersole compiled a database of nearly 3,000 occurrences of articulate brachiopods. This group was among the hardest hit during the extinction event. "They go from super diverse to almost nothing," said Ebersole . "So, they make a very good candidate for studying global trends in extinction."

Ebersole looked for trends in two places. First, he split up the fossil occurrences according to the geographic region in which they were found during the Permian. This allowed him to determine whether one region was hit harder than another. His analysis showed no clear difference among regions. Temperate areas were hit just as hard as tropical ones.

Secondly, he looked at distinct environmental zones from near shore to deep water. Reefs and other highly diverse environments generally occur within a specific environmental zone. Again, there was no significant difference among zones. The Late Permian extinction eve
'"/>

Contact: Chris Curran
chris.curran@uc.edu
513-556-1806
University of Cincinnati
30-Oct-1996


Page: 1 2

Related biology news :

1. Zinc In Sludge From Spanish Reservoir Break Equals Mines Annual Output, Researchers Find
2. Blacks Environmental Concerns Equal/Exceed Whites
3. Many Dog Foods About Equal In Nutritional Value, Researchers Say
4. Synthetic Vitamin E And Natural Vitamin E Are Equally Powerful Antioxidents
5. Sharks Get Porthole Of Opportunity
6. Programmable Cells Open Window Of Opportunity For Gene Therapy
7. Female Adolescents Need Calcium During Window Of Opportunity
8. Cincinnati engineering study finds clue to Bangladeshs poisoned water
9. University of Cincinnati researchers track climate changes in Arctic thaw lakes
10. University of Cincinnati geologist finds survival benefit to evolving after mass extinctions
11. University of Cincinnati and Air Force use algal enzyme to create new silicon-based materials

Post Your Comments:
(Date:5/10/2015)... 11, 2015 Fingerprint Cards (FPC) has ... FPC1155 from the distributor World Peace Industrial Group (WPI), part ... Asia . Deliveries are planned to take ... by smartphone manufacturers in China . The ... revenue guidance of + 1 000 MSEK for 2015.   ...
(Date:5/5/2015)... , May 5, 2015, NXT-ID, Inc. (NASDAQ: ... focused on the growing mobile commerce market, reminds investors and ... Technology Officer, is presenting  at CARTES SECURE CONNEXIONS AMERICA 2015, ... 2015. The three-day conference is organized into ... speaking in is themed Global Fraud: Where is the ...
(Date:4/21/2015)... High crime rate, increasing ... access control systems market in Saudi Arabia ... published report by TechSci Research " Saudi Arabia Access Control ... systems market in Saudi Arabia ... control systems market in the Kingdom is growing at ...
Breaking Biology News(10 mins):Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 235 Million 2NXT-ID, Inc.'s CTO, David Tunnell, Presents at CARTES SECURE CONNEXIONS AMERICA 2015 Today in Washington DC. 2NXT-ID, Inc.'s CTO, David Tunnell, Presents at CARTES SECURE CONNEXIONS AMERICA 2015 Today in Washington DC. 3Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 2Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 3
(Date:5/20/2015)... Research and Markets ( http://www.researchandmarkets.com/research/x4b7kw/top_technologies ) ... in HW_Technical Insights" report to their offering. ... trends in the Health and Wellness sector and has ... an impact in the year 2015. The research service ... health and wellness technologies that are anticipated to have ...
(Date:5/20/2015)... -- Health eCareers, the healthcare industry,s online career hub, ... looking for the flexibility of short-term assignments through ... tool dedicated exclusively to temporary and shift work ... employers to quickly find and hire experienced professionals ... other temporary positions, eliminating the time and resources ...
(Date:5/20/2015)...  Resolution Bioscience announced today the successful results from ... , a blood-based liquid biopsy for an ALK-gene fusion driver ... most common form of this cancer. Researchers or clinicians ... personalized therapies and direct them into clinical trials with ... Health, the CLIA authority in Washington State ...
(Date:5/20/2015)... DENVER , May 20, 2015 /PRNewswire/ ... today announced that it is an official ... Management Executives (CHIME) Cooperative Members Services Program. ... of compliant, managed cloud services and best ... of healthcare CIOs and service providers, enabling ...
Breaking Biology Technology:Top Technologies in the Health and Wellness Industry 2015 2Health eCareers Launches SHIFT Mobile and Online Tool to Match Healthcare Employers with Temporary Job Seekers 2Health eCareers Launches SHIFT Mobile and Online Tool to Match Healthcare Employers with Temporary Job Seekers 3Resolution Bioscience Receives CLIA Certification for its Diagnostic Laboratory and Launches CLIA-Certified Liquid Biopsy for Lung Cancer 2HOSTING Named Partner of the CHIME Cooperative Member Services Program 2HOSTING Named Partner of the CHIME Cooperative Member Services Program 3
Cached News: