Navigation Links
Tree resin captures evolution of feathers on dinosaurs and birds
Date:9/15/2011

Secrets from the age of the dinosaurs are usually revealed by fossilized bones, but a University of Alberta research team has turned up a treasure trove of Cretaceous feathers trapped in tree resin. The resin turned to resilient amber, preserving some 80 million-year-old protofeathers, possibly from non-avian dinosaurs, as well as plumage that is very similar to modern birds, including those that can swim under water.

U of A paleontology graduate student Ryan McKellar discovered a wide range of feathers among the vast amber collections at the Royal Tyrrell Museum in southern Alberta. This material stems from Canada's most famous amber deposit, near Grassy Lake in southwestern Alberta.

The discovery of the 11 feather specimens is described as the richest amber feather find from the late Cretaceous period. The amber preserves microscopic detail of the feathers and even their pigment or colour. McKellar describes the colours as typically ranging from brown to black.

No dinosaur or avian fossils were found in direct association with the amber feather specimens, but McKellar says comparison between the amber and fossilized feathers found in rock strongly suggest that some of the Grassy Lake specimens are from dinosaurs. The non-avian dinosaur evidence points to small theropods as the source of the feathers.

Some of the feather specimens with modern features are very similar to those of modern birds like the Grebe, which are able to swim underwater. The feathers can take on water giving the bird the ballast required to dive more effectively.

McKellar says the Grassy Lake find demonstrates that numerous evolutionary stages of feathers were present in the late Cretaceous period and that plumage served a range of functions in both dinosaurs and birds.


'/>"/>

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

Page: 1

Related biology news :

1. Tree resin the key evidence of current and historic insect invasions
2. Carbon dioxide scrubber captures greenhouse gases
3. How can accidental captures of loggerhead turtles be reduced?
4. Envisat captures renewed volcanic activity
5. Biography captures Sydney Brenners unflagging scientific curiosity and lively personality
6. New Brain Connectivity journal captures latest advances in neuroscience research
7. New solar product captures up to 95 percent of light energy
8. Sandia captures 4 R&D 100 Awards
9. Worm genome offers clues to evolution of parasitism
10. Advance offers revolution in food safety testing
11. Mass extinctions and the evolution of dinosaurs
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... DETROIT , Jan. 13, 2015 Technology Showcase, Hall ... iris-based identity authentication solutions, today announced it will showcase its ... and developed by the Department of Energy,s Oak Ridge ... International Auto Show . EyeLock,s iris identity authentication technology is ...
(Date:1/22/2015)... (NASDAQ: NXTD and NXTDW) a biometric authentication company focused ... the Wocket™ smart wallet at CES 2015 in Las Vegas ... of the "11 Hot Products at CES" in a review published in ... by Newseveryday.com and "The top 10 gadgets from CES 2015" by ...
(Date:1/22/2015)... MUNICH , January 22, 2015 ... its tenth year  The European Patent Office to present ... Two British nominations to be featured: Christofer Toumazou ... week featuring former finalists and winners of the Award   ...
Breaking Biology News(10 mins):EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 3CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 2Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 3
... -- In research published in the Jan. 17 issue of ... by Susana Gonzalo, Ph.D., assistant professor of biochemistry and molecular ... that contributes to triple-negative breast cancer, an often deadly and ... women. In addition, Gonzalo and her team identified vitamin D ...
... hands with antibacterial soap, most don,t think about where ... of Minnesota engineering researchers do. A new University ... called triclosan, used in soaps and many other products ... lakes. The findings are directly linked to increased triclosan ...
... Biologist Erica Larschan, Ph.D., was ... Month," for her innovative findings on chromosomal activity in fruit flies. ... at Brown University in identifying a protein that allows a male ... That advantage, if proven similar in human males, could point the ...
Cached Biology News:Vitamin D holds promise in battling a deadly breast cancer, Saint Louis University researchers say 2Vitamin D holds promise in battling a deadly breast cancer, Saint Louis University researchers say 3Vitamin D holds promise in battling a deadly breast cancer, Saint Louis University researchers say 4Antibacterial agent used in common soaps found in increasing amounts in freshwater lakes 2Antibacterial agent used in common soaps found in increasing amounts in freshwater lakes 3
(Date:1/22/2015)... , Jan. 22, 2015  Derma Sciences, Inc. (Nasdaq: ... focused on advanced wound care, announces that AMNIOEXCEL® ... have been added to the Premier, Inc. Regenerative ... opportunity for the AMNIOEXCEL® and AMNIOMATRIX® product lines, ...
(Date:12/24/2014)... and NEW YORK , Dec. 24, 2014 ... advancing patient care in critical areas, announced the closing of ... and warrants to purchase up to an aggregate 3,500,000 shares ... share and $.01 per warrant.  The warrants have a per ...
(Date:12/24/2014)... 23, 2014 “Preparative & Process ... Flash), Consumables (Columns, Solvents, Buffers, Valves, Guages, Seals), ... Agriculture) - Forecasts to 2019” provides a detailed ... current market trends, and strategies impacting the preparative ...
(Date:12/24/2014)... SoundConnect’s 2015 next ... edge communication technology, provide continued education and inform ... series demonstrates online communication features and benefits; empowering ... most innovative and powerful tools. , According to ...
Breaking Biology Technology:Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 2Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 3Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 5PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4SoundConnect Launches Leading Edge Business Communications Webinar Series 2SoundConnect Launches Leading Edge Business Communications Webinar Series 3
... (DNA Diagnostics Center), the largest provider of private DNA paternity ... international attendees for a tour and behind the scenes look ... p.m. at DDC, One DDC Way, Fairfield, Ohio. ... International Exploration of Wrongful Conviction held in Cincinnati, Ohio, April ...
... diesel Capillary action and graphite foam are being ... a logistical nightmare for the military and U.S. troops deployed ... water a day, just getting that water to them increases ... proprietary system, however, this problem could be greatly reduced. The ...
... ALCLS), the genome engineering specialist, has announced today that its ... Depots (a French financial institution) for a planned capital investment ... to Cellectis and Caisse des Depots. This agreement ... subject to the achievement of certain technical conditions. ...
Cached Biology Technology:DDC to Name DNA Analyzer "Hello Truth" During Innocence Project International Delegate Tour 2Story tips from the Department of Energy's Oak Ridge National Laboratory: April 2011 2Story tips from the Department of Energy's Oak Ridge National Laboratory: April 2011 3Story tips from the Department of Energy's Oak Ridge National Laboratory: April 2011 4Cellectis and Caisse des Depots Sign Agreement on a Project for the Industrial Development of iPS Cells 2Cellectis and Caisse des Depots Sign Agreement on a Project for the Industrial Development of iPS Cells 3
Mouse polyclonal antibody to NR2F2 - nuclear receptor subfamily 2, group F, member 2...
Mouse polyclonal antibody raised against a partial recombinant MHC2TA. NCBI Entrez Gene ID = 4261...
... Smart Minis 300V power supply (Cat. No. ... voltage, sufficient for SDS-PAGE, and native PAGE ... pairs of terminator pairs can be used ... for individuals to have his/her own power ...
... NightOWL is a dedicated imaging system for ... Equipped with a very sensitive camera to ... plants in tumor research, infectious disease research, ... blots. NightOWL is the only imager with ...
Biology Products: