Navigation Links
Paleontologists discover new mammal from Mesozoic Era

An international team of American and Chinese paleontologists has discovered a new species of mammal that lived 125 million years ago during the Mesozoic Era, in what is now the Hebei Province in China.

The new mammal, documented in the March 15 issue of the journal Nature, provides first-hand evidence of early evolution of the mammalian middle ear--one of the most important features for all modern mammals. The discovery was funded by the National Science Foundation (NSF).

"This early mammalian ear from China is a rosetta-stone type of discovery which reinforces the idea that development of complex body parts can be explained by evolution, using exquisitely preserved fossils," said H. Richard Lane, program director in NSF's Division of Earth Sciences, which co-funded the discovery with NSF's Division of Environmental Biology and its Assembling the Tree of Life (AToL) program.

Named Yanoconodon allini after the Yan Mountains in Hebei, the fossil was unearthed in the fossil-rich beds of the Yixian Formation and is the first Mesozoic mammal recovered from Hebei. The fossil site is about 300 kilometers outside of Beijing.

The researchers discovered that the skull of Yanoconodon revealed a middle ear structure that is an intermediate step between those of modern mammals and those of near relatives of mammals, also known as mammaliaforms.

"This new fossil offers a rare insight in the evolutionary origin of the mammalian ear structure," said Zhe-Xi Luo, a paleontologist at the Carnegie Museum of Natural History (CMNH) in Pittsburgh, Pa. "Evolution of the ear is important for understanding the origins of key mammalian adaptations."

Mammals have highly sensitive hearing, far better than the hearing capacity of all other vertebrates, scientists have found. Consequently, paleontologists and evolutionary biologists have been searching for more than a century for clues to the evolutionary origins of mammal ear structure.
'"/>

Source:National Science Foundation


Page: 1 2

Related biology news :

1. Paleontologists learn how not to become a fossil
2. UAB scientists discover the origin of a mysterious physical force
3. Researchers discover way to make cells in the eye sensitive to light
4. Protein discovery could unlock the secret to better TB treatment
5. Newly-discovered class of genes determines ?and restricts ?stem cell fate
6. Newly discovered virus linked to childhood lung disorders and Kawasaki disease
7. Purdue proves concept of using nano-materials for drug discovery
8. Scientists discover the cellular roots of graying hair
9. Researchers discover molecule that causes secondary stroke
10. Scientists discover unique microbe in Californias largest lake
11. New protein discovered by Hebrew University researchers
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Paleontologists discover new mammal from Mesozoic Era

(Date:12/22/2014)... Dec. 22, 2014  The 2014 Holiday Season ... industry as Acuity Market Intelligence reports that the ... be open. Acuity forecasts that intensifying demand for ... incorporate biometrics will drive a global market of ... devices by 2020.   According to ...
(Date:12/17/2014)... Research and Markets ( http://www.researchandmarkets.com/research/s6qzt5/samsung_galaxy_s5 ... "Samsung Galaxy S5 - Home Button Synaptics Fingerprint ... http://photos.prnewswire.com/prnh/20130307/600769 ... than the iPhone 5S, Samsung introduces for the ... The Galaxy S5 home button presents ...
(Date:12/17/2014)... DENVER , Dec. 16, 2014  Automation ... is this more evident than at international borders. ... secure document scanners have allowed veteran travelers to ... Automated Passport Control (APC) Kiosks at an increasing ... the globe. According to ...
Breaking Biology News(10 mins):First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2Samsung Galaxy S5 - Home Button Synaptics Fingerprint Sensor Technology Analysis 2Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2
... study to examine motor execution in children with autism, ... new insight into the neurological basis of autism. The ... April 23 Brain Advanced Access, compared the brain activity ... developing peers while performing a simple motor tasktapping their ...
... of Oceanography at UC San Diego have been unraveling the ... Lake Tahoe one earthquake at a time. Two new studies ... of earthquake activity in the Lake Tahoe region, which suggest ... the basin, and that the largest fault in the basin, ...
... / b3c newswire / - Kinaxo Biotechnologies GmbH has ... identify the protein kinase mTOR as a new ... a non-steroidal, anti-inflammatory Cox-2 inhibitor approved for the ... In addition, celecoxib’s anti-proliferative effect has earned it ...
Cached Biology News:First neuroimaging study examining motor execution in children with autism reveals new insights 2First neuroimaging study examining motor execution in children with autism reveals new insights 3Scripps studies offer new picture of Lake Tahoe's earthquake potential 2KINAXOs Cellular Target Profiling reveals mTOR as a new target of Celebrex 2
(Date:12/19/2014)... December 19, 2014 Bioject Medical ... and manufacturer of needle-free injection technology, today announced ... Immunomic Therapeutics, Inc. (“ITI”) for ITI to use ... its LAMP™ vaccine platform. , In the ... Worldwide license to the Biojector®-2000 that triggers based ...
(Date:12/19/2014)... BioPlus Specialty Pharmacy (BioPlus), one of the ... Maroulis, Pharm.D. to the newly created position of Vice ... position, Dr. Maroulis will continue to manage the entire ... multi-site pharmacies as the company expands. Dr. Maroulis has ... he has served in many different capacities in the ...
(Date:12/19/2014)... -- Roche (SIX: RO, ROG; OTCQX: RHHBY) announced today ... privately held company based in Redwood ... big data platform for centralized management and processing ... on-market Genomic Management Solution, Bina-GMS 1 , empowers ... and scalable analyses to maximize the value of ...
(Date:12/19/2014)... , Dec. 19, 2014 Decision Resources ... will grow at a 12 percent compound annual growth ... of the aging population and the increasing adoption of ... America will also spur demand for dental ... dental implant and periodontal treatments. Other key ...
Breaking Biology Technology:Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 2Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 3BioPlus Specialty Pharmacy Promotes Dr. Nick Maroulis to Vice President of Specialty Pharmacy Services 2Roche acquires Bina Technologies and enters the genomic informatics market 2Roche acquires Bina Technologies and enters the genomic informatics market 3Latin American Dental Biomaterial Market Will Expand at a 12 Percent Annual Growth Rate Through 2023 2Latin American Dental Biomaterial Market Will Expand at a 12 Percent Annual Growth Rate Through 2023 3
... clean-room world of silicon wafers and solar cells, it turns ... perhaps all the way to making solar power an affordable ... light ricocheting around inside the polymer film of a solar ... film that,s nanoscale-thin and has been roughed up a bit ...
... fibroids affect more than 30% of American women. However, ... fibroid treatment . Uterine fibroids treatment is ... pressure on other organs (such as the bladder), grow rapidly, ... symptoms usually cause heavy or abnormal bleeding and discomfort, but ...
... of the world,s leading research and advisory firms for ... generic availability of antihypertensive agents, the hypertension drug market ... billion in 2019 in the United States, France, Germany, ... Pharmacor 2010 findings from the topic entitled Hypertension ...
Cached Biology Technology:Solar cells thinner than wavelengths of light hold huge power potential 2Solar cells thinner than wavelengths of light hold huge power potential 3Dr. Ramin Mirhashemi, MD of Gynecological Oncology Associates Discusses Uterine Fibroid Treatment with da Vinci Robotic Hysterectomy Surgery 2Due to Generic Erosion, the Hypertension Drug Market Will Decline by $3 Billion from 2009 to 2019 2
... is designed for stabilizing the coating ... for immunoassay development. It can ... coating and drying process and for ... also works as a blocking agent ...
... Tecans open platform for clinical diagnostic applications, ... performance in the clinical diagnostic and blood ... barcode reading and sample traceability as standard ... complies with the IVD-Directive* established in the ...
... of the smallest thermal cyclers on the market, ... the 0.5ml (20 samples) or 0.2ml microtube (25 ... heating and cooling rate of 3.6C/sec and 2.0C/sec ... Fast track programming with new quick dial ...
... new TC-412 thermal cycler, flexible on your protocols, ... a high performance, high sample throughput instrument at ... Flexible block format: The truly user-friendly fully ... in a matter of seconds without the need ...
Biology Products: