Navigation Links
Best evidence yet that dinosaurs used feathers for courtship
Date:1/3/2013

(Edmonton) A University of Alberta researcher's examination of fossilized dinosaur tail bones has led to a breakthrough finding: some feathered dinosaurs used tail plumage to attract mates, much like modern-day peacocks and turkeys.

U of A Paleontology researcher Scott Persons followed a chain of fossil evidence that started with a peculiar fusing together of vertebrae at the tip of the tail of four different species of dinosaurs, some separated in time and evolution by 45 million years.

Persons says the final vertebrae in the tails of a group of dinosaurs called oviraptors were fused together forming a ridged, blade-like structure. "The structure is called a pygostyle" says Persons. "Among modern animals only birds have them."

Researchers say fossils of Similicaudiptery, an early oviraptor, reveals feathers radiating from the fused bones at the tail tip. Similicaudiptery was not known to be a flying dinosaur and Persons contends its tail feathers evolved as a means of waving its feathered tail fans.

No direct fossil evidence of feathers has been found with the fossils of the oviraptors that followed Similicaudiptery, but Persons says there is still strong evidence they had a feathered tail.

Persons reasons that because the later oviraptor had the same tail structure as the feathered Similicaudipteryx, the tails of later oviraptors' still served the same purpose, waving feathered tail fans.

Persons says the hypothesis of oviraptor tail waving is supported by both the bone and muscle structure of the tail.

Individual vertebrae at the base of an oviraptor's tail were short and numerous, indicating great flexibility. Based on dissections of modern reptile and bird tails, Persons reconstruction of the dinosaur's tail muscles revealed oviraptors had what it took to really shake their tail feathers.

Large muscles extended far down the tail and had a sufficient number of broad connection points to the
'/>"/>

Contact: Brian Murphy
brian.murphy@ualberta.ca
780-492-6041
University of Alberta
Source:Eurekalert

Page: 1 2

Related biology news :

1. Evidence contradicts idea that starvation caused saber-tooth cat extinction
2. Chinese scientists discover evidence of giant pandas population history and local adaptation
3. First evidence of fish sensing geomagnetic fields from a Czech Christmas market
4. First evidence of ocean acidification affecting live marine creatures in the Southern Ocean
5. New evidence of dinosaurs role in the evolution of bird flight
6. More evidence needed to support use of autism interventions
7. Mobile phones and wireless networks: No evidence of health risk found
8. Researchers find first evidence for a genetic cause for Barretts oesophagus
9. First photo evidence of snub-nosed monkey species in China
10. Alpine Fault study shows new evidence for regular magnitude 8 earthquakes
11. Caltech researchers find evidence of link between immune irregularities and autism
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/19/2015)... 19, 2015 Research ... addition of the  "Genetic Testing Market Outlook ... http://photos.prnewswire.com/prnh/20130307/600769) , ,A recent report, Genetic Testing ... of the current and future genetic testing ... their working principles and types are covered ...
(Date:5/11/2015)... Calif. , May 11, 2015  Synaptics ... of human interface solutions, today announced the appointment ... President and Chief Financial Officer, reporting to ... replaces Synaptics, current Chief Financial Officer, Kathleen ... 2014. Mr. Ali brings extensive ...
(Date:5/8/2015)... JOSE, Calif. , May 8, 2015 Synaptics ... interface solutions, today announced that members of the executive management ... J.P. Morgan 43rd Annual Technology, Media and Telecom Conference ... Waterfront Hotel in Boston, MA ... May 27, 2015 Time: 2:45pm ET Location: The New York ...
Breaking Biology News(10 mins):Global Genetic Testing Market Outlook 2018 2Synaptics Appoints Wajid Ali as Senior Vice President and Chief Financial Officer 2Synaptics to Present at Upcoming Investor Conferences 2
... a consortium of 98 Ph.D.-granting universities, has selected Holly ... of Delaware,s College of Earth, Ocean, and Environment, to ... The competitive award, which provides $5,000 from ORAU ... university, is intended to enrich the research and educational ...
... scientists discovered a defect in cellular pathways that provides a ... in newborns, known as craniosynostosis. Mutations of the ... events that regulate bone formation at the stem cell level, ... journal Science Signaling . "Our work contributes to ...
... O157:H7 is present but rare in some wildlife species of ... to as the nation,s "salad bowl," reports a team or ... who are nearing completion of a massive field study to ... near Central Coast farms, presented their findings today during the ...
Cached Biology News:University of Delaware professor wins Powe Award from Oak Ridge Associated Universities 2University of Delaware professor wins Powe Award from Oak Ridge Associated Universities 3Stem-cell disruption induces skull deformity, UR study shows 2E. coli 0157:H7 present but not common in wildlife of nation's salad bowl 2E. coli 0157:H7 present but not common in wildlife of nation's salad bowl 3
(Date:5/21/2015)... (PRWEB) May 21, 2015 Patent Offering, ... method for diagnostic or therapeutic imaging within a body ... uses an endoscope having a low cost, single-use disposable ... filing date was October 18, 2013 and the patent ... technology enables the physician to customize the lighting and ...
(Date:5/21/2015)... 21, 2015 Veolia’s environmental monitoring ... North American distribution agreement with VWR to distribute ... With more than 160 years of experience, VWR, ... for laboratory and production facilities, has cultivated a ... differentiated services to enable science. Endetec’s TECTA™ ...
(Date:5/20/2015)... May 19, 2015 Research and Markets ... "Global Cell Therapy Market Outlook 2020 " ... therapy in tissue and regenerative medicine is expected to ... options which could help in the growth of deregulated ... but they are unable to form new tissue or ...
(Date:5/20/2015)... 20, 2015  Marc Tessier-Lavigne, president of The ... $100 million from The Marie-Josée and Henry R. ... building that will be the centerpiece of the ... Henry R. Kravis Research Building, two stories high, ... approximately three city blocks following the shoreline of ...
Breaking Biology Technology:IpAuctions™ Presents The Worlds Smallest Disposable Illuminated Endoscope For Auction 2IpAuctions™ Presents The Worlds Smallest Disposable Illuminated Endoscope For Auction 3Veolia’s TECTA™ B16 Instrument for E. Coli Detection is Offered Exclusively Through VWR 2Global Cell Therapy Market Outlook 2015-2020 - 262 Cell Therapies & 13 Marketed Cell Therapies 2Global Cell Therapy Market Outlook 2015-2020 - 262 Cell Therapies & 13 Marketed Cell Therapies 3The Marie-Josee and Henry R. Kravis Foundation Provides Landmark Gift of $100 Million to The Rockefeller University 2The Marie-Josee and Henry R. Kravis Foundation Provides Landmark Gift of $100 Million to The Rockefeller University 3The Marie-Josee and Henry R. Kravis Foundation Provides Landmark Gift of $100 Million to The Rockefeller University 4
... and you haven,t backed up your holiday photos is a step ... into a new kind of computer memory. , Physicists at ... have made new advances in researching a new kind of memory, ... information on home computers. , Your hard drive ...
... companies align to leverage technologies for PACS data disaster ... Management (IKM) business unit of Siemens Healthcare ... and Harris Corporation ( www.harris.com ... providers affordable solutions critical for Picture Archiving and Communication ...
... April 3 Verenium Corporation (Nasdaq: ... high-performance specialty enzymes and next-generation cellulosic ethanol, today ... demonstration-scale facility in Jennings, Louisiana, and the recent ... Verenium is now consolidating its research and development ...
Cached Biology Technology:Beating the back-up blues 2Siemens Healthcare Announces Planned Collaboration with Harris Corporation 2Siemens Healthcare Announces Planned Collaboration with Harris Corporation 3Siemens Healthcare Announces Planned Collaboration with Harris Corporation 4Verenium Announces Organizational Changes 2Verenium Announces Organizational Changes 3
... wide variety of solvent vapors that can contaminate and ... allows for the collection of liquid into a self ... waiting period., Ultra low -104 o C ... , Digital Display of temperature ...
96 Well Plate UB, RE bottom; consistent medium binding affinity for hydrophobic complexes and proteins....
... Incubated Console Orbital Shakers combine high ... unequalled programming power. The patented ... the unit to run with heavy ... filtration system reduces contamination. The ...
...
Biology Products: