Navigation Links
UCSB researcher leads worldwide study on marine fossil diversity
Date:7/11/2008

(Santa Barbara, Calif.) - It took a decade of painstaking study, the cooperation of hundreds of researchers, and a database of more than 200,000 fossil records, but John Alroy thinks he's disproved much of the conventional wisdom about the diversity of marine fossils and extinction rates.

Alroy, a researcher with the National Center for Ecological Analysis and Synthesis (NCEAS) at UC Santa Barbara, is the principal author of a report published in the July 3 edition of Science, "Phanerozoic Trends in the Global Diversity of Marine Invertebrates." A team that included 34 other researchers, who began their work in 1998, coauthored the report.

Alroy's report shows a new curve in the diversity of ancient marine invertebrate species such as clams, sand dollars and lobsters, while also revealing that most of the early propagation of invertebrates took place before the Late Cretaceous period. In addition, the research contends that the increase of those invertebrates in the period since is relatively small when compared to the 100 million years that elapsed.

"There's been 36 years of people arguing about this," Alroy said. "And I feel we finally resolved this debate, which is certainly one of the most high profile debates in the study of diversity of the fossil record.

"This is a big community project," he added. "The only reason we're able to do any of this is we have a very, very, very detailed database (the Paleobiology Database) that is built by a community of people over the Web. We record exactly what hole in the ground each fossil comes from."

By counting fossil records from all over the world, Alroy and his fellow researchers were able to conclude that much of what experts have been saying for the last 40 years might not be accurate. Instead of counting just the first and last instances of fossils, as others had done before, Alroy and his team set out to count them all, examining 284,816 fossil occurrences.<
'/>"/>

Contact: George Foulsham
george.foulsham@ia.ucsb.edu
805-893-3071
University of California - Santa Barbara
Source:Eurekalert

Page: 1 2

Related biology news :

1. Researchers identify proteins involved in new neurodegenerative syndrome
2. Texas researchers and educators head for Antarctica
3. MGH researchers describe new way to identify, evolve novel enzymes
4. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
5. University of Oregon researcher finds that on waters surface, nitric acid is not so tough
6. U of MN researchers discover noninvasive diagnostic tool for brain diseases
7. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
8. Researchers discover new strategies for antibiotic resistance
9. Researchers find new taste in fruit flies: carbonated water
10. Binghamton University researchers investigate evolving malaria resistance
11. Antioxidant to retard wrinkles discovered by Hebrew University researcher
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... Mass. A novel robotic system that can operate ... being tested as part of a biomedical research partnership ... the aim of determining if the robot, in conjunction ... faster, more accurate, less costly, and less discomforting for ... to deliver prostate cancer therapies with greater precision. , ...
(Date:9/18/2014)... acquire and creatively manipulate spoken language is unique to ... 6 million years of human evolution to make this ... candidate gene we now have," says Wolfgang Enard, Professor ... efforts to understand the molecular biological basis of language ... results of his latest study, undertaken in collaboration with ...
(Date:9/18/2014)... seem to be cheerful, happy-go-lucky characters, so you might ... life. , In fact some dogs are distinctly ... Sydney shows. , "This research is exciting because ... objectively and non-invasively. It offers researchers and dog owners ... that changes," said Dr Melissa Starling, from the Faculty ...
Breaking Biology News(10 mins):Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 2Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 3Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 4Trial begins for MRI-compatible robot designed to improve accuracy of prostate biopsies 5Language evolution: Quicker on the uptake 2Language evolution: Quicker on the uptake 3Dogs can be pessimists too 2Dogs can be pessimists too 3
... flatback turtles dine on fish, shrimp, and mollusks, ... sea turtles. New genetic research carried out by ... Center for Biodiversity and Conservation at the American ... understanding of the evolutionary relationships among all seven ...
... can be detected in a mineral likely present on ... a technique developed at the U.S. Department of Energy,s ... surface samples with the most promise for yielding signs ... of mineral and looks for chemical signatures of molecules ...
... optimize brain formation and function may also provide clues ... relapse, researchers say. Over the next two- and ... neurotrophic factor, or BDNF, in the blood of patients ... rise and fall is a good indicator that patients ...
Cached Biology News:Revealing the evolutionary history of threatened sea turtles 2Sensitive laser instrument could aid search for life on Mars 2Sensitive laser instrument could aid search for life on Mars 3Brain-nourishing molecule may predict schizophrenia relapse 2Brain-nourishing molecule may predict schizophrenia relapse 3
(Date:9/18/2014)... , Sept. 18, 2014 /PRNewswire-iReach/ -- DeepResearchReports.com adds ... Acetic Acid Industry" and "2014 Deep Research Report ... to its research database. Photo - ... Research Report on Global and China Acetic Acid ... on China and Global ...
(Date:9/18/2014)... 2014 Texas Governor Rick Perry, ... A&M Health Science Center CEO Brett Giroir, M.D., ... and Human Services (HHS), State of Texas and ... influenza vaccine manufacturing facility in Bryan, Texas, which ... the Texas A&M Biocorridor – a rapidly evolving ...
(Date:9/18/2014)... , Sept. 18, 2014 Research ... "Global Human Albumin Industry Report 2014" report ... Albumin Industry Report 2014 is a professional and in-depth ... albumin industry. The report provides a basic ... industry chain structure. The human albumin market analysis is ...
(Date:9/18/2014)...  MEI Pharma, Inc. (Nasdaq: MEIP ), an ... for cancer, announced today that Daniel P. Gold , ... NewsMakers in the Biotech Industry conference on Friday, ... Millennium Broadway Hotel & Conference Center in New ... be accessed at www.meipharma.com . A replay will be ...
Breaking Biology Technology:Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 2Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 3Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 4Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 2Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 3Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 4Global Human Albumin Industry Report 2014 2Global Human Albumin Industry Report 2014 3MEI Pharma To Present At BioCentury's NewsMakers Conference 2MEI Pharma To Present At BioCentury's NewsMakers Conference 3
... a self-powering cell phone that never needs to be ... user into the energy it needs to keep running. ... to the recent work of Tahir Cagin, a professor ... Texas A&M University. , Utilizing materials known in scientific ...
... announce that Matthew Heyman joined the organization as vice president of ... ... Rockville, Md. (Vocus) December 1, 2008 -- The ... Heyman joined the organization as vice president of external affairs and ...
... /PRNewswire-Asia-FirstCall/ -- BMP Sunstone,Corporation (Nasdaq: BJGP ) ... will attend the 20th Annual Piper Jaffray Health Care,Conference. ... Annual Piper Jaffray Health Care Conference is being held ... at the New York,Palace Hotel in New York City. ...
Cached Biology Technology:Self-powered devices possible, says Texas A&M researcher 2Self-powered devices possible, says Texas A&M researcher 3USP Names Matthew Heyman Vice President of External Affairs and Strategic Integration 2USP Names Matthew Heyman Vice President of External Affairs and Strategic Integration 3
GLP-compliant, CLIA-certified DNA sequencing service. ASQ and SQA certified quality assurance staff. Auditors welcome....
Great for biotinylating DNA/RNA probes...
A component of the Acridinium protein labeling kit....
... polyclonal antibody to human XAB2 (amino terminus) ... identified through its interaction with XPA. Immunoprecipitation ... of XAB2 interacts with the transcription-coupled repair-specific ... with RNA polymerase II. Microinjection experiments with ...
Biology Products: