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:4/24/2014)... published in the Scientific Reports journal. , CSIC ... joint centre of CSIC and Pompeu Fabra University-UPF), explains: "When ... we saw that it did not match with the DNA ... the complete genome and to make a functional interpretation in ... Louis XVI". , The functional genome analysis was based ...
(Date:4/24/2014)... Researchers at Ludwig-Maximilians-Universitaet (LMU) in Munich have identified ... system to discriminate between viral and endogenous RNAs ... they take control of cellular metabolism and hijack ... This process is dependent on viral RNA molecules ... of RNA viruses) and/or newly synthesized in the ...
(Date:4/24/2014)... State University and the University of North Carolina at ... could help identify arterial plaque that is at high ... stroke. , At issue is the plaque that builds ... plaque are deemed "vulnerable," meaning that they are more ... heart attack or stroke. , "Existing state-of-the-art technologies are ...
Breaking Biology News(10 mins):The blood preserved in the pumpkin did not belong to Louis XVI 2Viral infections: Identifying the tell-tale patterns 2Viral infections: Identifying the tell-tale patterns 3New ultrasound device may add in detecting risk for heart attack, stroke 2
... researchers have shown natural radioactivity within DNA can alter ... The research, recently published in Biochimica et ... at natural radioactivity within human DNA on the atomic-scale. ... as well as in every living organism across the ...
... 2013 In the past decade, a single strain of ... become the main cause of bacterial infections in women and ... a study published today in the American Society for Microbiology,s ... resistant to antibiotics, the strain H30-Rx gained an unprecedented ability ...
... climate and biosphere modelling suggests that the length of time ... known as ,residence time, - is the key "uncertainty" in ... all life - will respond to higher CO2 levels and ... time in vegetation as the negative impacts of climate change ...
Cached Biology News:Radioactivity muddles the alphabet of DNA 2Epidemic of Escherichia coli infections traced to 1 strain of bacteria 2Epidemic of Escherichia coli infections traced to 1 strain of bacteria 34 degree rise will end vegetation 'carbon sink' 24 degree rise will end vegetation 'carbon sink' 3
(Date:1/14/2014)...  RXi Pharmaceuticals Corporation (OTCQX: RXII), a biotechnology company ... addressing major unmet medical needs using RNA-targeted technologies, ... Allowance from the United States Patent and Trademark ... for the treatment of fibrosis. The patent covers ...
(Date:1/14/2014)... , Jan. 14, 2014   Kinaxis ®, provider of ... ) and sales and operations planning ( S&OP ) service, ... Biomanufacturing Summit , which will be held at the Hilton ... conference, join Kinaxis customer Elisabeth Kaszas , Director of ...
(Date:1/14/2014)... January 14, 2014 Kerr Corporation, a leading ... and additional how-to information about dual arch impressions on its ... Dual Arch Impressions,” the blog entry serves up a list ... houses a step-by-step demonstration by Dr. David Little as he ...
(Date:1/14/2014)... Independent publisher Bitingduck Press, with offices in Altadena ... ideas for 2014 in production and sales of interactive ... high-quality, low-cost, DRM-free ebooks and to use the sales ... first major development will be bookstore sales in local ...
Breaking Biology Technology:RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 2RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 3Event Alert: Kinaxis Customer to Present at the Biomanufacturing Summit "Supply Chain: Improving Network Effectiveness" 2Bitingduck Press Looks Forward to 2014 With Multimedia E-books 2
... 21, 2011 MO BIO Laboratories, Inc., ... purification, announces the launch of the RTS DNase™ Kit, ... enzyme. (Photo: http://photos.prnewswire.com/prnh/20110921/LA65994 ) ... from RNA preparations while protecting valuable RNA samples from ...
... Silence Therapeutics plc (AIM: SLN) ("Silence", the "Group" or ... company, today announces the appointment of Tony Sedgwick PhD, ... Sedgwick will be based in Silence,s London office and ... Tony Sedgwick is an experienced biotechnology and pharmaceutical ...
... SANTA CRUZ, Calif., Sept. 20, 2011 SomaGenics, Inc., ... data on the efficacy of RNA interference (RNAi) therapeutics ... sshRNA platform. SomaGenics, along with its ... in a poster entitled "Synthetic Short shRNAs are Potent ...
Cached Biology Technology:MO BIO Laboratories, Inc. Launches the RTS DNase™ Kit 2Appointment of Chief Business Officer 2Appointment of Chief Business Officer 3SomaGenics' sshRNA Technology Demonstrates Efficacy of RNAi Against Hepatitis C Virus 2SomaGenics' sshRNA Technology Demonstrates Efficacy of RNAi Against Hepatitis C Virus 3
Mouse monoclonal [MN-8C4] to zona radiata ( Abpromise for all tested applications). Antigen: Purified eggshell proteins (zona radiata proteins and small amounts of zona pellucida proteins) from ...
Rabbit polyclonal to KIAA1276 ( Abpromise for all tested applications). entrezGeneID: 27146 SwissProtID: Q9ULE4...
Phospho-Chk1 (Ser296) Antibody Shipping Temperature: HOT Storage Temperature: -20C...
Mouse monoclonal [CRC64] to Integrin alpha 2b + beta 3 ( Abpromise for all tested applications). Antigen: Human platelets Entrez Gene ID: 23295 Swiss Protein ID: P05106...
Biology Products: