Navigation Links
New dinosaur fossil challenges bird evolution theory

The discovery of a new bird-like dinosaur from the Jurassic period challenges widely accepted theories on the origin of flight.

Co-authored by Dr Gareth Dyke, Senior Lecturer in Vertebrate Palaeontology at the University of Southampton, the paper describes a new feathered dinosaur about 30 cm in length which pre-dates bird-like dinosaurs that birds were long thought to have evolved from.

Over many years, it has become accepted among palaeontologists that birds evolved from a group of dinosaurs called theropods from the Early Cretaceous period of Earth's history, around 120-130 million years ago. Recent discoveries of feathered dinosaurs from the older Middle-Late Jurassic period have reinforced this theory.

The new 'bird-dinosaur' Eosinopteryx described in Nature Communications this week provides additional evidence to this effect.

"This discovery sheds further doubt on the theory that the famous fossil Archaeopteryx or "first bird" as it is sometimes referred to was pivotal in the evolution of modern birds," says Dr Dyke, who is based at the National Oceanography Centre, Southampton.

"Our findings suggest that the origin of flight was much more complex than previously thought."

The fossilised remains found in north-eastern China indicate that, while feathered, this was a flightless dinosaur, because of its small wingspan and a bone structure that would have restricted its ability to flap its wings.

The dinosaur also had toes suited to walking along the ground and fewer feathers on its tail and lower legs, which would have made it easier to run.

Contact: Glenn Harris
University of Southampton

Page: 1

Related biology news :

1. Dinosaur fossil: Even specialized predators didnt turn down free meals
2. Exploding dinosaur hypothesis implodes
3. Duck-billed dinosaurs endured long, dark polar winters
4. Jurassic pain: Giant flea-like insects plagued dinosaurs 165 million years ago
5. Gaseous emissions from dinosaurs may have warmed prehistoric earth
6. Dinosaurs were warm-blooded reptiles
7. Newly discovered dinosaur implies greater prevalence of feathers
8. Feathered saurians -- downy dinosaur discovered
9. Fossil egg discovered in Lleida (Spain) links dinosaurs to modern birds
10. Engineering technology reveals eating habits of giant dinosaurs
11. Dinosaur bends caused by prolonged diving
Post Your Comments:
Related Image:
New dinosaur fossil challenges bird evolution theory
(Date:9/21/2014)... at the University of California, San Diego, have developed ... that control the activity of genes based on sequences ... from its application to human embryonic cells in a ... 21. , "All of our cells have the same ... said John Whitaker, lead author of the report. "Skin ...
(Date:9/21/2014)... Stanford researchers has developed a protein therapy that disrupts ... from original tumor sites, travel through the blood stream ... , This process, known as metastasis, can cause cancer ... of patients who succumb to cancer fall prey to ... associate professor of bioengineering who describes a new therapeutic ...
(Date:9/19/2014)... biology professor will study multifunctional and specialized spinal ... a National Science Foundation grant in the amount ... Berkowitz, professor in the Department of Biology, OU ... the differences between the multifunctional and specialized spinal ... use and what connections they make. Berkowitz ...
Breaking Biology News(10 mins):Program predicts placement of chemical tags that control gene activity 2Stanford researchers create 'evolved' protein that may stop cancer from spreading 2Stanford researchers create 'evolved' protein that may stop cancer from spreading 3Stanford researchers create 'evolved' protein that may stop cancer from spreading 4
... for in his address to the nation last night, Americans ... to both their shareholders and society, according to a new ... The rigorous survey-based nationwide study of U.S. adults aware ... that Republicans, Democrats and Independents strongly agree that the spill ...
... first week after giving birth, up to 70 percent ... While most women recover quickly, up to 13 percent ... clinical-level postpartum depression. Postpartum depression is defined as a ... and is a significant public health problem. Postpartum blues ...
... what the USGS is doing in response to the Deepwater Horizon ... information after a major disaster. Also, learn how the USGS is ... from rivers and streams. You can even go on a pollinator ... Science Picks or any other USGS news, and receive updates via ...
Cached Biology News:Consumer responses to Gulf oil spill reflect Americans' changing corporate expectations 2More than just the baby blues 2More than just the baby blues 3June Science Picks 2June Science Picks 3June Science Picks 4June Science Picks 5June Science Picks 6June Science Picks 7
(Date:9/18/2014)... Bryan-College Station, Texas (PRWEB) September 18, 2014 ... University System Chancellor John Sharp, Texas A&M Health ... from the U.S. Department of Health and Human ... GSK today dedicated a national pandemic influenza vaccine ... will serve as an anchor for the Texas ...
(Date:9/18/2014)... -- Research and Markets has announced the ... Industry Report, 2014-2017" report to their offering. ... can differentiate into specialized cells and can divide (through ... can be applied to treatment of cardiovascular diseases, leukemia ... damage or lesion of liver, kidney and other parenchymal ...
(Date:9/18/2014)... 18, 2014 Research and Markets ... Albumin Industry Report 2014" report to their offering. ... 2014 is a professional and in-depth study on the ... The report provides a basic overview of the ... The human albumin market analysis is provided for the ...
(Date:9/18/2014)... Leatherwood Plastics has selected Vycom’s Flametec ... competitive in the semiconductor, clean room and medical ... product quality and productivity, according to Dwight Leatherwood, ... 1980 in Lewisville, TX, Leatherwood Plastics ... the business. Much of Leatherwood’s equipment building relies ...
Breaking Biology Technology:Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 2Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 3Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 4Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3Global Human Albumin Industry Report 2014 2Global Human Albumin Industry Report 2014 3Leatherwood Plastics Selects Vycom’s Flametec PVC-C Material to Stay Competitive in Semiconductor and Lab Equipment Industries 2
... to capture market share during the global push toward ... latest version of its digital mammography workstation in the ... services provider, said the workstation, known commercially as Merge ... workflow and enhance clinical reading capabilities. , ,According to ...
... in three short months! The major stock indices looked pretty ... up steam in the second quarter with the Dow Jones ... eight percent growth for the first half. Not far behind was ... the first quarter and 7% growth for the half year. , ...
... Wis . - Opponents of human embryonic stem-cell research are ... That's like asking a fourth-grader why he doesn't have a ... University of Wisconsin-Madison scientist James Thomson figured out how ... , ,On the opposite extreme, excited proponents of human embryonic ...
Cached Biology Technology:Midwest life science stocks kept sizzling in Q2 2Midwest life science stocks kept sizzling in Q2 3Midwest life science stocks kept sizzling in Q2 4Midwest life science stocks kept sizzling in Q2 5Midwest life science stocks kept sizzling in Q2 6Separating hope from hype in stem-cell research 2Separating hope from hype in stem-cell research 3
... orbital shakers combine high durability and capacity ... triple-counterbalanced heavy-duty mechanism prevents vibration, allowing the ... loads. Every other part, from the large ... thick machined aluminum platform is designed to ...
Small bottle for hybridization 150 x 35mm...
Extra Large bottle for hybridization 300 x 70mm...
Biology Products: