Navigation Links
Reptile 'cousins' shed new light on end-Permian extinction
Date:5/5/2011

rd of extinct diversity. If you visualize evolutionary relationships in the form of branching diagrams and then plot them on a time scale, new patterns begin to emerge, with gaps in the fossil record suddenly filling rapidly."

One of the team members, Juan Cisneros of the Universidade Federal do Piau, Ininga, Brazil said: "It is as if ghosts from the past appear all of a sudden and join their relatives in a big family tree you have a bigger tree. This way, you can start analysing observed and extrapolated abundance of species through time, and you can quantify novel origination and extinction events that would otherwise go unnoticed if you were to look at known finds only."

Co-author Johannes Mller of the Museum fr Naturkunde, Berlin added: "Researchers who investigate changing diversity through time have a huge battery of basic and advanced analytical and statistical methods at their disposal to study patterns of diversification and extinction. Classic text-book views of waxing and waning of groups through deep time will certainly benefit, where possible, from the use of evolutionary thinking."

University of Washington's Linda Tsuji, also part of the research team, concluded: "This is the first time that the history of parareptiles has been examined in such detail. But this is only the beginning. These bizarre-looking vertebrates continue to inspire generations of researchers, not only those interested in mass extinctions. They are abundant, diverse, and we still know very little about their biology. We hope that this study will initiate a more in-depth study of the response of terrestrial vertebrates to global catastrophes."

The new findings are published online today in the journal Palaeontology.


'/>"/>

Contact: Hannah Johnson
hannah.johnson@bristol.ac.uk
44-117-928-8896
University of Bristol
Source:Eurekalert

Page: 1 2

Related biology news :

1. Rare 95 million-year-old flying reptile Aetodactylus halli is new pterosaur genus, species
2. Ice-age reptile extinctions provide a glimpse of likely responses to human-caused climate change
3. New species of flying reptile identified on B.C. coast
4. Rare 89 million-year-old flying reptile fossil from Texas may be worlds oldest Pteranodon
5. The pain of evolution: A big toothache for reptiles
6. Gene studies lead to kissing cousins
7. Too many relatives ruining your picnic? Be glad the flies dont invite their cousins
8. October 2008 GEOLOGY and GSA TODAY media highlights
9. Agricultural research highlighted in Houston
10. Atomic-resolution views suggest function of enzyme that regulates light-detecting signals in eye
11. Can genetic information be controlled by light?
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/10/2014)... This news release is available in German . ... scientists, including researchers from DESY, has caught a central step ... led by Prof. Petra Fromme from Arizona State University used ... Accelerator Laboratory SLAC to record still frames of a molecular ... and oxygen, a process that maintains the oxygen in earth,s ...
(Date:7/10/2014)... While careful management has helped stabilize or even ... parts of Europe, the situation in the Mediterranean ... a new report evaluating nine fish species reported ... on July 10, scientists call for stringent ... fisheries regulations, and advanced management plans in Mediterranean ...
(Date:7/10/2014)... of overfishing in the English Channel has resulted in ... and left fishermen ,scraping the barrel, for increasing amounts ... cod, haddock and many other species at the head ... many removed from the area completely., These are some ... biologists at Plymouth University, in association with international non-profit ...
Breaking Biology News(10 mins):Scientists watch photosynthesis in action 2Scientists watch photosynthesis in action 3Mediterranean fish stocks show steady decline 2Overfishing in the English Channel leaves fisherman scraping the bottom of the barrel 2Overfishing in the English Channel leaves fisherman scraping the bottom of the barrel 3
... paper being presented in two American Physiological Society ... team demonstrated "for the first time that mitochondria ... mitochondria may mechanically regulate nuclear function." , The ... years, reported that it recently "found a very ...
... There's no doubt that laughter feels good, but is ... do about it? , In a paper being presented ... 2006, Lee S. Berk of Loma Linda University, reports ... but just the anticipation of the "mirthful laughter" involved ...
... different plant species are not only more productive, they ... climate extremes, pests and disease over long periods of ... issue of Nature, are the culmination of 12 years ... Ecology at the University of Minnesota, to explore the ...
Cached Biology News:First direct mechanical communication of mitochondria, cardiomyocyte nucleus shown 2First direct mechanical communication of mitochondria, cardiomyocyte nucleus shown 3Just the expectation of a mirthful laughter experience boosts endorphins 27 percent, HGH 87 percent 2Just the expectation of a mirthful laughter experience boosts endorphins 27 percent, HGH 87 percent 3Biodiversity key to sustainable biofuel according to University of Minn. researcher's findings 2
(Date:7/10/2014)... THOUSAND OAKS, Calif., July 10, 2014   Ceres, ... biotechnology and seed company, announced today financial results for ... an update on its business. Ceres reported ... progress in product performance this growing season in Brazil, ... that affected the company,s sorghum evaluation areas for part ...
(Date:7/10/2014)... microscopic polymer light resonators that expand in the ... Photonics Laboratory have developed new optical sensors with ... sensors are ideal for detecting trace gas concentrations ... nature, and immunity to electromagnetic interference. , Although ... the MIT team conceived an extremely sensitive, compact ...
(Date:7/10/2014)... observed the fractional quantum Hall effect in bilayer graphene ... be tuned by an electric field. , The ... confined to thin sheets are exposed to large magnetic ... thousands of individual electrons behave as a single system. ... well established, many details of this collective behavior remain ...
(Date:7/10/2014)... out for crude 3-D glasses, polarized glasses, and ... basic devices, used to trick the brain into ... rendered obsolete with the introduction of new holography ... TAU doctoral students Yuval Yifat, Michal Eitan, and ... on nanoantennas that could be used for security ...
Breaking Biology Technology:Ceres Announces Fiscal Third Quarter 2014 Financial Results 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 3Ceres Announces Fiscal Third Quarter 2014 Financial Results 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 5Ceres Announces Fiscal Third Quarter 2014 Financial Results 6Ceres Announces Fiscal Third Quarter 2014 Financial Results 7Ceres Announces Fiscal Third Quarter 2014 Financial Results 8Ceres Announces Fiscal Third Quarter 2014 Financial Results 9Swell new sensors 2Columbia researchers observe tunable quantum behavior in bilayer graphene 2Columbia researchers observe tunable quantum behavior in bilayer graphene 3Projecting a 3-dimensional future 2Projecting a 3-dimensional future 3
... Ariz., April 23 ImaRx Therapeutics,Inc. (Nasdaq: ... into an agreement,with Abbott Laboratories pursuant to which ... non-recourse promissory note with Abbott issued in,connection with ... title to,the urokinase assets, including the remaining inventory ...
... (NYSE: SGP ) today announced two agreements ... in Europe. These agreements are,in connection with conditions ... its October 2007 clearance of Schering-Plough,s acquisition of ... In two separate agreements, Pfizer and Virbac, ...
... today,announced that on April 22, 2008 its management ... Emerging Business Awards, known as the "Bennies.",BioNanomatrix won ... group of growing entrepreneurial firms in the Philadelphia ... the,award on behalf of the company., The ...
Cached Biology Technology:ImaRx Therapeutics Satisfies Abbott Note Obligation Associated With the Acquisition of Urokinase 2ImaRx Therapeutics Satisfies Abbott Note Obligation Associated With the Acquisition of Urokinase 3Schering-Plough Announces Planned Divestiture of Select Animal Health Products in Europe 2BioNanomatrix Named 'Best Management Team' at the 2008 Ben Franklin Emerging Business Awards 2
MAb to HLA, Class II-DR+DP Dry Ice: No Preservative: NaN3 Availability When Not in Inventory: 14-21 Business Days...
Cell Culture Flask, 25 cm, tissue-culture treated polystyrene...
... Virgin, optically clear polystyrene with frosted ... coordinates for cell counting. 100% integrity ... a new product number, created to ... showing no availability yet, please order ...
... CellBIND surface is produced by a ... more hydrophilic surface giving more consistent, ... and yields. CellBIND enhances cell attachment ... reduced serum or serum-free medium. • ...
Biology Products: