New fossil found in Mongolia provides insight into the origin of living birds and the evolution of flight

New Haven, Conn. The discovery in Mongolia of the fossil of a new bird, Apsaravis ukhaana, that lived about 80 million years ago, sheds new light on the evolution of birds.

The nearly complete specimen of the small pigeon-sized bird was found at the locality Ukhaa Tolgod in the Gobi Desert of Southern Mongolia as part of the ongoing joint expeditions of the American Museum of Natural History in New York and the Mongolian Academy of Sciences.

The find, announced this week in the journal Nature, was analyzed by Julia Clarke, a doctoral candidate in vertebrate paleontology atYale University, and Mark Norell, chair and curator of the Division of Paleontology at the American Museum of Natural History. The discovery is particularly important because the new bird comes from a part of the evolutionary tree close to the origin of all living birds and that is not well represented in the fossil record.

"All of the birds living today have a most recent common ancestor that they share," said Clarke, who is in Yales Department of Geology. "This fossil is just outside the group or clade that includes the decendants of that common ancestor. It is the best preserved specimen of a fossil from close to the radiation of all living birds discovered in over 100 years."

The finding is the most significant from this part of the avian tree since the discovery of specimens of the closest relative to living birds, Ichthyornis, first discovered more than 100 years ago in Kansas. These specimens of Ichthyornis are part of the permanent collection at Yales Peabody Museum of Natural History.

Clarke said the fossil dispels the notion that the ornithurines, or nearest relatives to todays existing birds, were restricted to near shore environments while the interior was dominated by another lineage of fossil birds known as the "opposite birds" or Enantiornithes. The Enantiornithes are comparatively abundant in terrestrial deposits in the fossil record of Mesozoic, but went e

Contact: Jacqueline Weaver
Yale University

Page: 1 2

Related biology news :

1. New fossil sheds light on old mystery
2. Evolution of whale hearing unfolds in fossil record
3. A picture is worth a thousand miles not traveled to measure the fossil of an ancient sea creature
4. Dinosaur fossil record compiled, analyzed
5. Scientist challenges interpretation of new find, the oldest primate fossil ever discovered
6. Ghost crab fossils haunt area beaches
7. 160,000-year-old fossilized skulls from Ethiopia are oldest modern humans
8. Scientists debate meaning of 40-million-year-old primate fossils in Nature
9. Dinosaur, crab fossils reveal ecosystem secrets
10. Rutgers Tanzanian fossil reshuffles the deck on early human ancestry
11. Prehistoric tusks point to earliest fossil evidence of differences between sexes

Post Your Comments:

(Date:8/5/2020)... ... , ... Regenative Labs has received approval from the Centers for Medicare & ... first Wharton’s jelly allografts to be assigned a Q code and be approved for ... Wharton’s jelly allograft product to be recognized as a 361 HCT/P by CMS regulated ...
(Date:7/18/2020)... ... July 16, 2020 , ... A study has been published ... Neoasis™ active noise control device to attenuate typical noises in a simulated neonatal ... the alarm sounds from patient monitors, ventilators and other bedside devices that would ...
(Date:7/2/2020)... ... July 01, 2020 , ... AltruBio Inc. http://www.altrubio.com ... a biologic for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), at European ... J Martin of the Fred Hutchinson Cancer Research Center, this single-arm, open-label Phase ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... FARMS, Mich. (PRWEB) , ... August 12, 2020 ... ... Consulting Group, Inc. (EMMA International), a global leader in FDA compliance consulting ... of the nation’s fastest-growing private companies. The list represents a unique look at ...
(Date:8/3/2020)... (PRWEB) , ... August 03, 2020 , ... ... collection, today announced Jim Corrigan, President and CEO has been named one of ... broad cross-section of industry sectors, PharmaVoice 100 honorees are selected based on how ...
(Date:7/31/2020)... ... July 29, 2020 , ... R3 Stem Cell International is ... $3950. With 50 million stem cells total, patients may choose which extremities they would ... for arthritic joints (BMC Musculoskelet Disord. 2016). At R3 International, umbilical cord tissue is ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... transmitter systems that can be configured to drive Klystrons, TWTs, IOTs, and magnetrons. ... drive one or two switches in a push-pull configuration; yielding fast fall time ...
Breaking Biology Technology:
Cached News: