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:12/10/2014)... , Dec. 08, 2014 Research and ... the addition of the "Biometrics Market in ... http://photos.prnewswire.com/prnh/20130307/600769 ... projects such as rural banking and upgradation of ... trends witnessed in the market. Besides the aforementioned ...
(Date:12/3/2014)...   Marvin Test Solutions , a trusted ... military, aerospace, and manufacturing organizations, today announced the ... TS-900 PXI semiconductor test platform . The TS-960 ... to customers at a fraction of the footprint ... "Our semiconductor customers asked for ...
(Date:11/21/2014)... REDMOND, Wash. , Nov. 20, 2014 ... access for the Internet of Things (IoT), today announced ... position of chief operating officer. Previously a strategic advisor ... marketing, finance, and operations. Mr. Traynor is based out ... . He reports to Chris Muench , ...
Breaking Biology News(10 mins):Biometrics Market in Japan 2014-2018: Key Vendors are DDS, Fujitsu, Hitachi and NEC 2Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 2Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 3C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2
... An early type of antibiotic-resistant bacteria that caused a ... as one of the community-acquired MRSA 'superbugs', according to ... April 2005). , This "re-equipping and re-emergence" of a ... mean that community acquired MRSA will spread faster and ...
... have been calling for an improved database that would ... strategies. Botanists at the University of Bonn have now ... publication, in the Journal of Biogeography, of a world ... in 867 zones, known as ecoregions. "This makes the ...
... the Universitat Autònoma de Barcelona has developed new miniature ... size and thickness as a fingernail and reduce the ... or a few hours, depending on each chain. These ... from paternity tests and identifying people to detecting genetically ...
Cached Biology News:Community MRSA is re-emergence of 1950s pandemic, study suggests 2Scientists map the world for nature conservation 2New miniaturised chip dramatically reduces time taken for DNA analysis 2New miniaturised chip dramatically reduces time taken for DNA analysis 3
(Date:12/24/2014)... NEW YORK , Dec. 23, 2014 ... pilot study of mazindol in children with attention deficit/hyperactivity ... in December 2014 . The paper, ... with attention deficit/hyperactivity disorder" ( Konofal et al, ... 1;8:2321-2332. eCollection 2014 ) shows that mazindol might ...
(Date:12/22/2014)... 2014   Synthetic Biologics, Inc. ... therapies for serious infections and diseases, with ... announced positive topline safety and tolerability results ... SYN-004, the Company,s investigational oral beta-lactamase enzyme ... (C. difficile) infection, antibiotic-associated diarrhea and ...
(Date:12/22/2014)... 22, 2014  Alternative Energy & Environmental Solutions, ... signed a letter of intent to acquire BioTechPharma ... patented a nanotechnology-based development platform used to create ... rapid on-site collection and testing to identify infectious ... in an immediate, non-invasive and cost-effective manner. ...
(Date:12/22/2014)... MISSION VIEJO, Calif. , Dec. 22, 2014 /PRNewswire/ ... announce that CoPatient, an online medical bill review and ... newest offering in the FREE WellCard Savings discount health ... a medical bill that was more than they expected ... help members reduce health care costs, WellCard Savings is ...
Breaking Biology Technology:Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 2Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 3Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 2Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 3Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 4Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 5ALNE Announces Intention To Acquire BioTechPharma 2WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2
... transportation firms are still popular among IT professionals, according ... , ,The magazine released its 12th annual "100 Best ... American Family Insurance Group 30th in the ... year's study recognized companies that create meaningful work for ...
... FedEx/Kinkos needed to dispose of 1,100 used copier machines, it ... $200,000 to the company and a harder-to-calculate cost to ... recycle the machines by donating them to non-profit organizations. FedEx/Kinkos ... you ever wondered about what happened to Scott McCallum, Aidmatrix ...
... as businesses seek to protect and enhance the value ... result of the business' products and services. Each year, ... many of them for federal trademark registration. Indeed, applications ... good leading indicator of economic conditions (a steep drop ...
Cached Biology Technology:Two Wisconsin companies hold spots on Computerworld employee survey 2Internet charity link has a Wisconsin flavor in CEO Scott McCallum 2Internet charity link has a Wisconsin flavor in CEO Scott McCallum 3Why file for trademark protection? 2Why file for trademark protection? 3Why file for trademark protection? 4
A set of five proteins which can be used to calibrate a Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) or Electrospray Ionization (ESI) mass spectrometer....
... A number of modifications of Grace's ... the late 1960's and 1970's. Many of ... Hink for the growth of cells derived ... represents the modification known as TNM-FH. The ...
... GST•Tag™ Ek Adaptor encodes a T7 promoter, ... (rbs), ATG translation initation codon and an ... has been reported to enhance the production ... its fusion partners. The GST•Tag is a ...
...
Biology Products: