360° Coverage : Fossil of most evolutionarily successful mammal found in China

3 Updates
Fossil of most evolutionarily successful mammal found in China
Photo Credit: DIMITAR DILKOFF, Getty Images

Fossil of most evolutionarily successful mammal found in China

Aug 16 2013, 7:48am CDT | by IANS

Washington, Aug 16 (IANS) A nearly complete skeleton that belongs to the oldest ancestor of "the most evolutionarily successful and long-lived mammal lineage" on Earth has been unearthed in China, researchers from China and the US said.

Washington, Aug 16 — A nearly complete skeleton that belongs to the oldest ancestor of "the most evolutionarily successful and long-lived mammal lineage" on Earth has been unearthed in China,...

Filed under: news

YouTube Videos

 
 
 

1 year ago

Fossil of most evolutionarily successful mammal found in China

Aug 16 2013, 7:48am CDT | by IANS

Washington, Aug 16 (IANS) A nearly complete skeleton that belongs to the oldest ancestor of "the most evolutionarily successful and long-lived mammal lineage" on Earth has been unearthed in China, researchers from China and the US said.

Washington, Aug 16 — A nearly complete skeleton that belongs to the oldest ancestor of "the most evolutionarily successful and long-lived mammal lineage" on Earth has been unearthed in China, researchers from China and the US said.

Dubbed as "Rugosodon eurasiaticus", the newly discovered species looked a bit like a small rat or a chipmunk. It lived 160 million years ago and was an early member of the group of mammals known as multituberculates, which flourished across the planet from about 170 million to 35 million years ago, reports Xinhua.

Multituberculates arose in the Jurassic period and went extinct in the Oligocene Epoch, occupying a diverse range of habitats for more than 100 million years before they were out-competed by more modern rodents.

"The new mammal is called Rugosodon after the rugose teeth ornamented by numerous tiny ridges, grooves and pits, indicating that it was an omnivore that fed on leaves and seeds of ferns and gymnosperm plants, plus worms and insects," an international team of scientists from Chinese Academy of Geological Sciences, Beijing Museum of Natural History and the University of Chicago said in a statement Thursday.

The researchers described Rugosodon's ankle bones as being "surprisingly mobile and flexible", a feature that suggests Rugosodon was a fast-running and agile mammal.

"The later multituberculates of the Cretaceous era and the Paleocene Epoch are extremely functionally diverse - some could jump, some could burrow, others could climb trees and many more lived on the ground. The tree-climbing multituberculates and the jumping multituberculates had the most interesting ankle bones, capable of 'hyper-back-rotation' of the hind feet," said ZheXi Luo, professor at the University of Chicago and co-author of the study.

"What is surprising about this discovery is that these ankle features were already present in Rugosodon," he added.

The researchers also said Rugosodon was a nocturnal mammal and lived in a temperate climate in lakeshores of what is now known as Jianchang county of Liaoning province in China.

At that time, the creature shared the land with the feathered dinosaur Anchiornis, the pterosaur Darwinipterus, abundant arthropods and several other mammals.

The discovery of Rugosodon extends the distribution of certain multituberculates from Europe to Asia during the late Jurassic period, the researchers said.

"This new fossil from eastern China is very similar to the late Jurassic fossil teeth of multituberculates from Portugal in western Europe.

"This suggests that Rugosodon and its closely related multituberculates had a broad paleogeographic distribution and dispersal back-and-forth across the entire Eurasian continent," explained Luo.

IANS

Source: IANS

 
Update
3

2 weeks ago

Star Walk Kids is a fun constellation browser for children

Sep 10 2014 3:30pm CDT | Source: TUAW

Star Walk Kids is a version of the astronomy apps Star Walk and Star Walk 2 - the latter of which TUAW's own Mel Martin called "impressively good looking" - designed specifically for educating kids about the wonders of the stars a ...
Source: TUAW   Full article at: TUAW
 

 
Update
2

5 weeks ago

Star Walk 2 mostly improves on the original

Aug 24 2014 4:30pm CDT | Source: TUAW

Star Walk 2 (US$2.99 with in-app purchases) is a solid update from the original award winning Star Walk astronomy program. This new version has a re-designed interface with the look and feel of each element ...
Source: TUAW   Full article at: TUAW
 

 

Don't miss ...

 

blog comments powered by Disqus

Latest stories

PayPal Willing to Work with Apple Pay
PayPal Willing to Work with Apple Pay
John Donahoe indicates his willingness to cooperate with Apple Pay
 
 
Apple Declares to Release the iPhone 6 and iPhone 6 Plus in China on October 17
Apple Declares to Release the iPhone 6 and iPhone 6 Plus in China on October 17
Apple says that the launch of the new iPhones in China will take place on October 17
 
 
Samsung Reportedly Manufacturing iPad Air 2 and 12.9-Inch “iPad Pro” Panels
Samsung Reportedly Manufacturing iPad Air 2 and 12.9-Inch “iPad Pro” Panels
The Korean giant will continue to work with the Cupertino company for producing panels for the next iPads
 
 
Each Unit of Apples Watch’s AMOLED Screen Reportedly Costs $27.41
Each Unit of Apple Watch’s AMOLED Screen Reportedly Costs $27.41
The cost of the AMOLED display of the new smartwatch is pretty high
 
 
 

Latest from the Network

Apple benefited from illegal tax agreements in Ireland: EU
Brussels, Oct 1 (IANS) European Union (EU) regulators Tuesday announced that Apple Inc. enjoyed state aid from Ireland for many years via illegal tax agreements. The European Commission expressed concern over tax...
Read more on Business Balla
 
Liam Hemsworth's family thought he was posessed
Liam Hemsworth's family thought he was possessed by demons when he was a child. The Australian actor, 24, admits he and his older brother Chris Hemsworth, 31, were very naughty when they were growing up, as their...
Read more on Celebrity Balla
 
Anne Hathaway only settled into married life last year
Anne Hathaway's first year of married life was ''insane.'' The 'Les Miserables' actress, who tied the knot with jewelry designer Adam Shulman in Big Sur, California in September 2012, admits she only started to settle...
Read more on Celebrity Balla
 
George Clooney donating profits from wedding photos to his own charity
George Clooney is donating most of the profits from his wedding photographs to his own charity. The 53-year-old actor, who tied in the knot with British human rights lawyer Amal Alamuddin, 36, in Venice, Italy during a...
Read more on Celebrity Balla
 
Justin Bieber meets Kendall Jenner in Paris
Justin Bieber enjoyed a boozy lunch with Kendall Jenner today (09.30.14). The 'Baby' hitmaker, who is currently in Paris with his on-again, off-again girlfriend Selena Gomez, was spotted sipping champagne with the 18-...
Read more on Celebrity Balla
 
The displaced from eastern Ukraine continue to flow
Odessa (Ukraine), Oct 1 (IANS/EFE) Despite a recent ceasefire, the people displaced by the separatist conflict in Donetsk and Lugansk in eastern Ukraine continue to flock to different areas of the country, including...
Read more on Politics Balla
 
Alicia Keys may deliver baby on New Year's Eve
Los Angeles, Oct 1 (IANS) Singer Alicia Keys has disclosed that her due date for the delivery of her second child is on New Year's Eve this time. She finds it "cute". She is likely to deliver her baby Dec 31, 2014....
Read more on Celebrity Balla
 
IS forces closing in on Syrian-Kurdish town
Beirut, Oct 1 (IANS/EFE) The Islamic State Sunni radical group advanced Tuesday on Kobani, the Syrian-Kurdish town on the Turkish border, and have come within two or three kilometres of the strategic town, the Syrian...
Read more on Politics Balla
 
20 killed in Algeria bus accident
Algiers, Oct 1 (IANS) At least 20 passengers were killed Tuesday in a road accident in Algeria, media reports said. The accident occurred in the southern city of Laghouat when two buses collided, leaving more than 20...
Read more on Politics Balla
 
New confidence, new excitement in India-US ties: Modi (Roundup)
Washington, Oct 1 (IANS) Saying there is "new confidence, new excitement" in the India-US relationship, Indian Prime Minister Narendra Modi Tuesday assured the US of India's commitment to take their stalled landmark...
Read more on Politics Balla