HOME >> BIOLOGY >> NEWS
Feathers on reptile older than dinosaurs, reported in Science

Washington DC - A small, flying reptile older than most dinosaurs may have sported a set of feathers, suggests a study in the 23 June issue of Science. The evidence comes from a fossil approximately 220 million years old, about 75 million years older than the oldest known bird, Archeopteryx.

According to the interpretation by Terry Jones, of Oregon State University, and coauthors, the strong similarities between the fossil feathers and modern day bird feathers suggest an evolutionary link between the two.

Although the exact relationship between the reptile, named Longisquama insignis, and modern birds is uncertain, these findings may pose a challenge to the prevailing theory that birds evolved from dinosaurs. (See the related News article by Erik Stokstad, to be available on 21 June.)

Longisquama was an archosaur, a member of the group of reptiles that gave rise to dinosaurs, crocodiles, and birds. The lizard-like creature was "a little tiny guy, about ten inches long from head to tail," said coauthor John Ruben, also of Oregon State University. Elongated scales adorned Longisquama's long arms, perhaps for use in gliding, and its back.

According to coauthor Larry Martin, of the University of Kansas, the fossil was discovered more than three decades ago in central Asia by a Russian paleontologist who specialized in insects. When the scientist published the first report of the fossil in 1970, he described a row of long narrow appendages down the animal's back, interpreting them as a frill of extremely long scales.

Martin contends, however, that "the slightest breeze would have toppled the animal over" if the structure had been a frill.

A later Russian study revised the picture, describing two parallel rows of supposed scales and proposing that Longisquama may have been able to pivot to form a pair of wing-like structures. Still, the appendages continued to be described as scales.

"The scien
'"/>

Contact: Heather Singmaster
hsingmas@aaas.org
202-326-6414
American Association for the Advancement of Science
22-Jun-2000


Page: 1 2 3

Related biology news :

1. Specialized brain helped ancient reptiles fly and hunt
2. Worlds smallest reptile discovered in Caribbean
3. Ancient reptile is efficient chewer
4. Ancient running reptile was bipedal, say Science researchers
5. Newly found bipedal reptile fossil predates dinosaurs by more than 60 million years
6. Running out of reptiles
7. Medical imaging shows dinosaur heart more like birds or mammals than reptiles
8. Regular physical activity really does boost immune system in older men
9. Origin of West Indian insect eater much older than previously thought
10. Educational program increases some safety behaviors for older drivers
11. Ancient DNA mutations permitted humans to adapt to colder climates, UCI researchers find

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/4/2017)... 2017  GCE Solutions, a global clinical research organization (CRO), announces ... solution on October 4, 2017. Shadow is designed to assist medical ... policy 0070 of the European Medicines Agency (EMA) in meeting the ... ... ...
(Date:6/30/2017)... , June 30, 2017 Today, ... developer and supplier of face and eye tracking ... Featured Product provider program. "Artificial ... innovative way to monitor a driver,s attentiveness levels ... from being able to detect fatigue and prevent ...
(Date:5/16/2017)... May 16, 2017  Veratad Technologies, LLC ( www.veratad.com ... age and identity verification solutions, announced today they will ... 2017, May 15 thru May 17, 2017, in ... International Trade Center. Identity impacts the ... in today,s quickly evolving digital world, defining identity is ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... ... October 10, 2017 , ... The Pittcon ... awards honoring scientists who have made outstanding contributions to analytical chemistry ... Pittcon 2018, the world’s leading conference and exposition for laboratory science, which will ...
(Date:10/9/2017)... ... ... At its national board meeting in North Carolina, ARCS® Foundation ... Physics and Astronomy, has been selected for membership in ARCS Alumni Hall of ... Breakthrough Prize in Fundamental physics for the discovery of the accelerating expansion of the ...
(Date:10/7/2017)... ... October 06, 2017 , ... ... providing advanced instruments and applications consulting for microscopy and surface analysis, Nanoscience ... application consulting, Nanoscience Analytical offers a broad range of contract analysis services ...
(Date:10/6/2017)... Mass. (PRWEB) , ... October 06, 2017 , ... ... female entrepreneurship within the healthcare and technology sector at their fourth annual Conference ... panels featuring 30 inspiring speakers and the ELEVATE pitch competition showcasing early stage ...
Breaking Biology Technology:
Cached News: