Navigation Links
Dinosaur skull changed shape during growth
Date:3/31/2010

ANN ARBOR, Mich.---The skull of a juvenile sauropod dinosaur, rediscovered in the collections of Pittsburgh's Carnegie Museum of Natural History, illustrates that some sauropod species went through drastic changes in skull shape during normal growth.

University of Michigan paleontologists John Whitlock and Jeffrey Wilson, along with Matthew Lamanna from the Carnegie Museum, describe their find in the March issue of the Journal of Vertebrate Paleontology.

The fossil offers a rare chance to look at the early life history of Diplodocus, a 150 million-year-old sauropod from western North America.

"Adult sauropod skulls are rare, but juvenile skulls are even rarer," said Whitlock, a doctoral candidate in the U-M Museum of Paleontology. "What we do know about the skulls of sauropods like Diplodocus has been based entirely on adults so far."

"Diplodocus had an unusual skull," said Wilson, an assistant professor in the Department of Geological Sciences and an assistant curator at the U-M Museum of Paleontology. "Adults had long, square snouts, unlike the rounded or pointed snouts of other sauropods. Up until now, we assumed juveniles did too."

The small Diplodocus skull, however, suggests that major changes occurred in the skull throughout the animal's life.

"Although this skull is plainly that of a juvenile Diplodocus, in many ways it is quite different from those of the adults," Whitlock said. "Like those of most young animals, the eyes are proportionally larger, and the face is smaller. What was unexpected was the shape of the snoutit appears to have been quite pointed, rather than square like the adults. This gives us a whole new perspective on what these animals may have looked like at different points in their lives."

The researchers believe these changes in skull shape may have been tied to feeding behavior, with adults and juveniles eating different foods to avoid competition. Young Diplo
'/>"/>

Contact: Nancy Ross-Flanigan
rossflan@umich.edu
734-647-1853
University of Michigan
Source:Eurekalert  

Page: 1 2

Related biology news :

1. New dinosaur species found in Montana
2. Emory paleontologist reports discovery of carnivorous dinosaur tracks in Australia
3. Dinosaur from Sahara ate like a mesozoic cow
4. Massive dinosaur discovered in Antarctica sheds light on life, distribution of sauropodomorphs
5. Unusual fish-eating dinosaur had crocodile-like skull
6. Seismic images show dinosaur-killing meteor made bigger splash
7. New dinosaur from Mexico offers insights into ancient life on West America
8. Quantum weirdness, parallel worlds, dinosaur poop, and the ultimate fate of the universe...
9. Grand Canyon may be as old as dinosaurs, says new study
10. Medical College researchers find dinosaur clues in fat
11. Genetic sequencing of protein from T. rex bone confirms dinosaurs link to birds
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Dinosaur skull changed shape during growth
(Date:7/22/2014)... New Orleans, LA -- Nancy Buccola, MSN, APRN, ... LSU Health Sciences Center New Orleans School of ... new locations of genetic material associated with schizophrenia ... immune system and schizophrenia. The study, Biological insights ... July 22, 2014 in Nature , available ...
(Date:7/22/2014)... lunch box and you,re likely to find that the lunches ... the findings of a study conducted by researchers at the ... and in the Department of Public Health and Community Medicine ... published online ahead of print in the Journal of ... by senior author Jeanne Goldberg, Ph.D., R.D., a professor at ...
(Date:7/22/2014)... type of immune cell widely believed to exacerbate ... and multiple sclerosis (MS), can actually protect the ... slow the progression of neurodegenerative diseases, according to ... journal Nature Communications . , The research ... the Department of Neurosciences at Cleveland Clinic,s Lerner ...
Breaking Biology News(10 mins):LSUHSC contributes to work identifying new DNA regions associated with schizophrenia 2Room for improvement in elementary school children's lunches and snacks from home 2Cleveland Clinic researchers discover neuroprotective role of immune cell 2
... at North Carolina State University makes an animal heart ... been removed from the animal,s body, allowing researchers to ... heart surgery. The machine saves researchers time and money ... in a realistic surgical environment, without the cost and ...
... 2009) The National Oceanic and Atmospheric Administration ... of a new cooperative institute which will be ... Florida Atlantic University in Fort Pierce, Florida, and ... (UNCW). This is the single largest competitive research ...
... Provide High Volume Transaction Solution Enabling Paperless Processing ... YORK, May 11 Communication Intelligence Corporation (" ... supplier of electronic signature solutions for business process ... leader** in biometric signature verification and Striata, the ...
Cached Biology News:'Beating' heart machine expedites research and development of new surgical tools, techniques 2NOAA awards $22.5 million to Harbor Branch/FAU and UNCW for new cooperative institute 2NOAA awards $22.5 million to Harbor Branch/FAU and UNCW for new cooperative institute 3Striata and CIC Launch Integrated eSignature, eDelivery, and eBilling for the Financial Services Industry 2Striata and CIC Launch Integrated eSignature, eDelivery, and eBilling for the Financial Services Industry 3Striata and CIC Launch Integrated eSignature, eDelivery, and eBilling for the Financial Services Industry 4Striata and CIC Launch Integrated eSignature, eDelivery, and eBilling for the Financial Services Industry 5
(Date:7/22/2014)... FRANKLIN LAKES, N.J. , July 22, 2014 ... (NYSE: BDX ) has declared a quarterly dividend ... 2014 to holders of record on September 9, 2014. The ... About BD BD is a leading medical ... many of the world,s most pressing and evolving health needs. ...
(Date:7/22/2014)... Terry Baughn, a senior lecturer in mechanical engineering at ... Engineer of the Year by the North Texas section ... ASME has more than 130,000 members in 158 countries ... technology to assist the engineering community, benefiting the world. ... Texas Society of Professional Engineers honors banquet. Baughn retired ...
(Date:7/22/2014)... July 22, 2014 Automated cell culture ... maintenance of cell culture. They allow production of optimum ... of researchers in drug discovery and industries and biopharmaceutical ... mAb production, iPSC research, cryobanking, cell-based assays, and cellular ... risk. , Analysts forecast the Global Cell Culture ...
(Date:7/22/2014)... NJ (PRWEB) July 22, 2014 ... precision, portable, and mechanical balances and scales, proudly ... balances has won Laboratory Equipment magazine’s 2014 “Readers' ... the second consecutive year the Explorer was voted ... The annual Readers’ Choice Awards celebrates “excellence in ...
Breaking Biology Technology:UT Dallas professor receives Engineer of the Year award 2Global Cell Culture Market to Grow at 10.27% CAGR by 2018 Forecasts a New Research Report ReportsnReports.com 2Global Cell Culture Market to Grow at 10.27% CAGR by 2018 Forecasts a New Research Report ReportsnReports.com 3Global Cell Culture Market to Grow at 10.27% CAGR by 2018 Forecasts a New Research Report ReportsnReports.com 4OHAUS Explorer Voted “Best Balance” in Laboratory Equipment’s 2014 Readers’ Choice Awards 2
... of Thomas Friedman's 2005 New York Times article ... the world of biotechnology. After returning from my visit to India ... ,I have since begun to read another book that has given ... specifically for the world of Big Pharma and biotechnology. , ,The ...
... in early-stage Wisconsin companies topped $100 million last year, but ... interesting investment patterns. , ,The figures were outlined in a ... for 2006, which was produced by NorthStar Economics , ... Department of Financial Institutions . , ,While the total ...
... has been awarded a $275,000 climate change grant, ... Madison-based energy business announced it will receive a technology ... comes from down under - the New South ... Australia. , ,The department's technology climate action grants support ...
Cached Biology Technology:The Right Brain: A neurological solution to the flattening world 2The Right Brain: A neurological solution to the flattening world 3The Right Brain: A neurological solution to the flattening world 4The Right Brain: A neurological solution to the flattening world 5Breaking down Wisconsin's angel capital numbers 2Breaking down Wisconsin's angel capital numbers 3
DNA fragmentation factor & Inhibitor of CAD...
Anti-MT3-MMP Membrane-Type Metalloproteinase-3; propeptide domain; rabbit host...
Anti-CoralHue Dronpa Green Monoclonal Antibody Research Focus: cell surface antigens Storage: -20C Shipping Temperature: +4C...
Chlamydia pneumoniae (TWAR)...
Biology Products: