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:
TAG: Feathers reptile older than dinosaurs reported

(Date:4/21/2015)... April 21, 2015 High ... policies are boosting access control systems market in ... to a recently published report by TechSci Research " ... the access control systems market in Saudi ... by 2020.The access control systems market in the Kingdom ...
(Date:4/14/2015)...  HYPR Corp. today announced it has joined ... tm , an industry consortium transforming online authentication ... technology and collaborate to deliver open specifications for ... and private, and easier to use. ... sensitive user information and eliminates the dependency on ...
(Date:4/10/2015)... April 10, 2015 Research and ... the "Security Competitive Profiles - NEC" report ... NEC will continue to supply a range ... market, with a company focus on the development of ... Winning opportunities in the Asia-Pacific ...
Breaking Biology News(10 mins):Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 2Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 3HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3NEC Security Competitive Profile 2015 2
(Date:5/29/2015)... May 29, 2015 BerGenBio AS ... announces that an abstract on the latest data on ... the Axl receptor tyrosine kinase, and BGB10C9, an Axl ... been published in conjunction with the 2015 American Society ... Chicago , May 29 - June 2, 2015. ...
(Date:5/29/2015)... Market Publishers Ltd and Shanghai ... partnership agreement for quality market research promotion on ... sell research reports worked out by Chem-Report. , ... upon the agreement: “Chem-Report is a Chinese company ... chemical markets on global and country levels. The ...
(Date:5/29/2015)... 29, 2015  Caris Life Sciences ® , ... promise of precision medicine, today announced the presentation ... clinical utility of Caris Molecular Intelligence ® , ... helping to identify targeted treatment options for patients ... the studies, results of which are to be ...
(Date:5/29/2015)... Seoul Semiconductor (CEO: Chung-hoon Lee, http://www.seoulsemicon.com ... 28th announced that it will increase the global ... efficient and high reliable LED product line-up for ... has developed efficient and reliable LED packages for ... for headlamps to global auto makers. Seoul Semiconductor’s ...
Breaking Biology Technology:BGB324 and BGB10C9 Show Promise in Models of Pancreatic Cancer 2BGB324 and BGB10C9 Show Promise in Models of Pancreatic Cancer 3Market Publishers Ltd and Chem-Report Sign Partnership Agreement 2Market Publishers Ltd and Chem-Report Sign Partnership Agreement 3Multi-Platform Tumor Profiling from Caris Life Sciences Identifies Targeted Treatment Options for Patients with Rare and/or Aggressive Tumors 2Multi-Platform Tumor Profiling from Caris Life Sciences Identifies Targeted Treatment Options for Patients with Rare and/or Aggressive Tumors 3Multi-Platform Tumor Profiling from Caris Life Sciences Identifies Targeted Treatment Options for Patients with Rare and/or Aggressive Tumors 4Multi-Platform Tumor Profiling from Caris Life Sciences Identifies Targeted Treatment Options for Patients with Rare and/or Aggressive Tumors 5Multi-Platform Tumor Profiling from Caris Life Sciences Identifies Targeted Treatment Options for Patients with Rare and/or Aggressive Tumors 6Seoul Semiconductor Increases the Global Automotive LED Market Share with its High Efficient and Reliable LEDs for Automotive Lightings 2
Cached News: