Navigation Links
Researchers discover oldest evidence of nails in modern primates
Date:8/15/2011

ers and toes, an exclusive feature among primates.

Specimens of T. brandti were collected over the last seven years in northwestern Wyoming's Bighorn Basin and represent the earliest North American species from the group of euprimates, also known as "true" primates. The fossils date to the early Eocene epoch, about 55.8 million years ago, at the same time as a 200,000-year global warming event known as the Paleocene-Eocene Thermal Maximum occurred, Bloch said. Mammals evolved to be smaller during that time, when even- and odd-toed hoofed mammals, distantly related to modern deer and horses, also first appeared in the fossil record.

"The appearance of the first modern primates in North America co-occurred with the appearance of other modern mammals such as horses, and it's all associated with a major global warming event," said co-author Stephen Chester, a Yale University doctoral student and research associate at UF. "It in part set the stage for what we see today in terms of modern mammalian biodiversity."

Less than 6 inches long, T. brandti was omnivorous, Bloch said. While archaic primates mostly had claws, some of the characteristics of modern primates include forward-facing eyes, an enlarged brain and nails on all digits.

"They are the smallest true nails known on record, whether living or fossil," said first author Ken Rose, a professor in the Center for Functional Anatomy & Evolution at Johns Hopkins University School of Medicine. "That certainly doesn't suggest nails developed with larger bodies."

Based on the age of the fossils and analyses of Teilhardina species from other parts of the world, researchers were also able to analyze the hypothesis that mammals migrated from Asia into North America. Instead, they likely passed from Asia, through Europe and into North America on high-latitude land connections.

"This research really suggests that we are looking at something extremely close [to
'/>"/>

Contact: Jon Bloch
jbloch@flmnh.ufl.edu
352-273-1938
University of Florida
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. NC State researchers get to root of parasite genome
2. Researchers find animal with ability to survive climate change
3. Researchers find an essential gene for forming ears of corn
4. Researchers note differences between people and animals on calorie restriction
5. Researchers study acoustic communication in deep-sea fish
6. Researchers discover that growing up too fast may mean dying young in honey bees
7. Researchers study how pistachios may improve heart health
8. UI researchers find potentially toxic substance present in Chicago air
9. Researchers develop new self-training gene prediction program for fungi
10. Case Western Reserve University researchers track Chernobyl fallout
11. Childrens National researchers develop novel anti-tumor vaccine
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/30/2015)... , Mar. 26, 2015 Research and Markets ... the "Global Gesture Recognition Market in Automotive Sector ... analysts forecast the Global Gesture Recognition market in Automotive ... the period 2013-2018. Gesture recognition is the ... different gestures of an individual. Gesture recognition technology can ...
(Date:3/24/2015)... BEACH GARDENS, Fla. , March 24, 2015 ... biometric identity management solutions, today announced that its ... premium clothing accessory retailer Goorin Bros . ... The Crossmatch biometrics-based solution secures access to the ... from the increased risk of data breaches. ...
(Date:3/20/2015)... Mar. 20, 2015 Research and Markets ... of the "India Sensors Market Forecast and ... The sensor market is projected to grow ... Consumer electronics, automotive, industrial and healthcare sectors ... the country. In addition, adoption of MEMS technology ...
Breaking Biology News(10 mins):Global Gesture Recognition Market in Automotive Sector Report 2015 - Growing Number of Partnerships 2Crossmatch Fingerprint Readers Help Retailer Prevent Data Breaches at Point-of-Sale 2India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 2India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 3
... National Heart, Lung, and Blood Institute (NHLBI) of the ... guidelines in the United States for the diagnosis and ... inherited bleeding disorder. The guidelines include recommendations on screening, ... extensive article on the guidelines is published online Feb. ...
... -- Teens who can recognize and resist the persuasive ... succumb to alcohol advertising and peer pressure to drink. ... middle school students by Weill Cornell Medical College researchers ... edition). Previous research has shown the connection between advertising ...
... has released a report that identifies the potential volume ... acres of Arizona forests, representing the first major agreement ... forest thinning. The Wood Supply Analysis report identifies ... feet of wood and 8 million tons of biomass ...
Cached Biology News:NHLBI issues first US von Willebrand Disease clinical practice guidelines 2NHLBI issues first US von Willebrand Disease clinical practice guidelines 3NHLBI issues first US von Willebrand Disease clinical practice guidelines 4Learning how to say 'no' to alcohol advertising and peer pressure works for inner-city adolescents 2Stakeholders use science to find common ground on wood supply from forests 2Stakeholders use science to find common ground on wood supply from forests 3
(Date:5/1/2015)... , May 1, 2015 ... "Antibody Production Market by Product (Equipment, Consumables), by Type ... Companies, Diagnostic Labs, Research Institutes) - Analysis & ... report studies the global Antibody Production Market for ... market is expected to reach $2.572 Billion by ...
(Date:4/30/2015)... May 01, 2015 Spirax Sarco, the ... extremely proud to announce that for the first time ... a winner of a Queen’s Award for Innovation – ... design and manufacture of a unique flowmeter. , The ... alternative to traditional steam flow measurement. The device ...
(Date:4/30/2015)... DIEGO , April 30, 2015   Tamir ... announced today an update on its Ebola antiviral therapy ... Tamir,s leading candidates, TMR004, is currently being evaluated and ... of the battle against Ebola. During the first quarter ... And Leadership Meeting To Accelerate The Evaluation of Potential ...
(Date:4/30/2015)... 30, 2015 /PRNewswire/ - BioAmber Inc. (NYSE: BIOA ... that it has commenced an underwritten public offering of ... the underwriters a 30-day option to purchase up to ... stock offered in the public offering. The offering is ... assurance as to whether or when the offering may ...
Breaking Biology Technology:Antibody Production Market worth $2.572 Billion by 2019 2Antibody Production Market worth $2.572 Billion by 2019 3Antibody Production Market worth $2.572 Billion by 2019 4Spirax Sarco Receives a Queen’s Award for Innovation 2Spirax Sarco Receives a Queen’s Award for Innovation 3Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 2Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 3Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 4BioAmber Inc. Announces Public Offering Of Common Stock 2BioAmber Inc. Announces Public Offering Of Common Stock 3
... Md., Sept. 23 Arisyn Therapeutics Inc.,(Arisyn) announced ... UAF,Technologies and Research, L.L.C. (UTR) a series of ... efficacy spectrum,against a variety of infectious organisms and ... assume the intellectual property portfolio. In,return, UTR will ...
... The National Women,s Health Resource Center,s Breast Cancer Study ... the #1 Risk Factor for Breast Cancer, RED ... study by,the not-for-profit National Women,s Health Resource Center (NWHRC), ... are,dissatisfied with their overall physical appearance are significantly less,likely ...
... Environmental,Tectonics Corporation,s (Amex: ETC ) ("ETC" or ... placement of two BARA-MED(R) XD,Monoplace Hyperbaric Chambers at ... in Corpus Christi, Texas, in 1905 and is,the ... the region. The,facility offers South Texans a full ...
Cached Biology Technology:Arisyn Therapeutics Inc. Acquires Highly Novel Portfolio of Therapeutic Small Molecules for Infectious Disease and Cancer 2Arisyn Therapeutics Inc. Acquires Highly Novel Portfolio of Therapeutic Small Molecules for Infectious Disease and Cancer 3Video: Women Unsatisfied With Body and Breasts, Less Likely to Comply With Screenings, Including Mammography 2Video: Women Unsatisfied With Body and Breasts, Less Likely to Comply With Screenings, Including Mammography 3Environmental Tectonics Corporation Announces a Multiple Sale for Monoplace Hyperbaric Chambers 2Environmental Tectonics Corporation Announces a Multiple Sale for Monoplace Hyperbaric Chambers 3
SHP-2 Antibody...
Sheep polyclonal to ErbB 2 ( Abpromise for all tested applications). Antigen: Recombinant full length c-ErbB2 protein (Human). Entrez GeneID: 2064 Swiss Protein ID: P04626...
Mouse monoclonal [RIZ1723] to PRDM2/RIZ...
MagSi uniform silica particles coated with a carboxyl group containing polymer, covalently attached to the bead surface....
Biology Products: