Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
..
. 24/7 Space News .




EARLY EARTH
Feathered dinosaur gives evolution clues
by Staff Writers
Southampton, England (UPI) Jan 24, 2013


disclaimer: image is for illustration purposes only

A feathered dinosaur fossil about 12 inches long is older than bird-like dinosaurs from which birds are thought to have evolved, British paleontologists say.

The discovery of the new bird-like dinosaur from the Jurassic period, dubbed Eosinopteryx, presents a challenge to widely accepted theories on the origin of flight, they said.

"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," said Gareth Dyke of the University of Southampton, who is based at the National Oceanography Center, Southampton.

Rather than Archaeopteryx, paleontologists have come to believe birds evolved from a group of dinosaurs called theropods from the Early Cretaceous period of Earth's history, around 120 million to 130 million years ago.

The new "bird-dinosaur" Eosinopteryx is additional evidence of this, researchers said.

The fossilized remains found in northeastern China suggest Eosinopteryx, while feathered, was a flightless dinosaur with a small wingspan and a bone structure that would have restricted its ability to flap its wings.

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

"Our findings suggest that the origin of flight was much more complex than previously thought," Dyke said in a university release Thursday.

.


Related Links
Explore The Early Earth at TerraDaily.com






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





EARLY EARTH
Studying ancient Earth's geochemistry
Washington, DC (SPX) Jan 22, 2013
Researchers still have much to learn about the volcanism that shaped our planet's early history. New evidence from a team led by Carnegie's Frances Jenner demonstrates that some of the tectonic processes driving volcanic activity, such as those taking place today, were occurring as early as 3.8 billion years ago. Their work is published in Geology. Upwelling and melting of the Earth's mant ... read more


EARLY EARTH
US, Europe team up for moon fly-by

Russia to Launch Lunar Mission in 2015

US, Europe team up for moon fly-by

Mission would drag asteroid to the moon

EARLY EARTH
Opportunity At Work At Whitewater Lake

Thawing Dry Ice Drives Groovy Action On Mars

Mars Rover Curiosity Uses Arm Camera at Night

Possible Clues to Ancient Subsurface Biosphere on Mars

EARLY EARTH
Iran Manufacturing Hi-Tech Spacesuits

TDRS-K Offers Upgrade to Vital Communications Net

An Astronaut's Guide

Mathematical breakthrough sets out rules for more effective teleportation

EARLY EARTH
Reshuffle for Tiangong

China to launch 20 spacecrafts in 2013

Mr Xi in Space

China plans manned space launch in 2013: state media

EARLY EARTH
NASA to Send Inflatable Pod to International Space Station

ISS to get inflatable module

ESA workhorse to power NASA's Orion spacecraft

Competition Hopes To Fine Tune ISS Solar Array Shadowing

EARLY EARTH
Azerspace And Africasat-1a "fit" for Ariane 5 launch

NASA Selects Experimental Commercial Suborbital Flight Payloads

Payload elements come together in Starsem's wrap-up Soyuz mission from Baikonur Cosmodrome for Globalstar

Amazonas 3 in Kourou for Ariane 5 year-opening launch campaign

EARLY EARTH
New Evidence Indicates Auroras Occur Outside Our Solar System

Glitch has space telescope shut down

Earth-size planets common in galaxy

NASA's Hubble Reveals Rogue Planetary Orbit For Fomalhaut B

EARLY EARTH
New information on binding gold particles over metal oxide surfaces

Researchers Create Method for More Sensitive Electrochemical Sensors

Phoenix Rising: New Video Shows Advances in Satellite Repurposing Program

Novel sensor provides bigger picture




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement