Navigation Links
Test shows dinosaurs survived mass extinction by 700,000 years
Date:1/27/2011

g horizon and therefore a fossil can drift or migrate from its original layer in the strata. The researchers say their direct-dating method precludes the reworking process.

It's widely believed that a mass extinction of the dinosaurs happened between 65.5 and 66 million years ago. It's commonly believed debris from a giant meteorite impact blocked out the Sun, causing extreme climate conditions and killing vegetation worldwide.

Heaman and his research colleagues say there could be several reasons why the New Mexico hadrosaur came from a line of dinosaurs that survived the great mass extinction events of the late Cretaceous period (KT extinction event). Heaman says it's possible that in some areas the vegetation wasn't wiped out and a number of the hadrosaur species survived. The researchers also say the potential survival of dinosaur eggs during extreme climatic conditions needs to be explored.

Heaman and his colleagues believe if their new uranium-lead dating technique bears out on more fossil samples then the KT extinction paradigm and the end of the dinosaurs will have to be revised.


'/>"/>

Contact: Brian Murphy
brian.murphy@ualberta.ca
780-492-6041
University of Alberta
Source:Eurekalert

Page: 1 2

Related biology news :

1. Study shows smaller rows contribute to more soybean yields in colder climates
2. UC Davis study shows plants moved downhill, not up, in warming world
3. New study shows soy protein lowers non-HDL cholesterol significantly more than milk protein
4. RevaTen platelet-rich plasma shows promise as potential treatment for heart attacks
5. Research shows single-patient rooms reduce hospital infections in ICU
6. UF study of lice DNA shows humans first wore clothes 170,000 years ago
7. What triggers mass extinctions? Study shows how invasive species stop new life
8. Study shows drifting fish larvae allow marine reserves to rebuild fisheries
9. Research shows positive results with high pressure technology for certain dairy products
10. Research shows that environmental factors limit species diversity
11. New research shows virus previously linked to chronic fatigue syndrome is a lab contaminant
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/2/2015)... 25, 2015 Research ... of the "Natural Language Processing Market by ... OCR, Pattern & Image Recognition) - Worldwide Forecast ... The key vendors occupying the market are ... Microsoft Corporation, NetBase Solutions, SAS Institute Inc., Verint ...
(Date:6/29/2015)... -- Research and Markets( http://www.researchandmarkets.com/research/zj7h4f/latin_america ) ... Biomedical Sensors Market - Growth, Trends & Forecasts (2014-2020)" ... America Biomedical Sensors market is estimated at $0.65 billion ... period 2014-2020 The near future will bring ... of each individual. These sensors can be set to ...
(Date:6/24/2015)... , June 24, 2015 The biologics ... The major drivers for the market include growth of ... of new drug launches. Over the years, the number ... Between 2001 and 2010, the FDA approved 225 drug ... to WIPO, Europe accounted for ...
Breaking Biology News(10 mins):Natural Language Processing Market by Type (Rule-Based, Statistical, and Hybrid), Technologies (Recognition, IVR, OCR, Pattern & Image Recognition) - Worldwide Forecast to 2020 2Latin America Biomedical Sensors Market Report 2015-2020 2Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 2Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 3Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 4
... Spanish . , Scientists with the U.S. Department ... that,s always a hit at festive gatherings also is always ... a first-of-its-kind mathematical model that food processors and others can ... of salt and smoke compounds to reduce or eliminate microbial ...
... youth are one of the fastest growing populations in ... in life, they are more likely to smoke regularly ... racial groups, according to the Department of Health and ... examining the unique differences in adolescent tobacco use among ...
... an internationally acclaimed scientist, explorer and conservationist, will receive ... museum announced today. He is the first Australian to ... One of Australia,s leading thinkers and writers, Flannery has ... living animals. He has published more than 130 peer-reviewed ...
Cached Biology News:USDA scientists helping keep in-demand smoked salmon safe to eat 2School attendance, refusal skills combat smoking risk in youth 2Scientist Tim Flannery is first Austrailian to receive Joseph Leidy Award 2
(Date:7/28/2015)... -- Research and Markets ( ... "Analysis of the Global Flow Cytometry Market ... Globally, flow cytometry remains a popular tool for ... stem cells. But the market is witnessing active ... from underdeveloped nations to quantitate CD4 cell markers ...
(Date:7/28/2015)... ... ... VetStem Biopharma will be offering weekly private guided tours of our new ... The tour and course will be given every Wednesday at 6pm to local interested ... members are welcome to attend with their veterinarian as well. Participants will be able ...
(Date:7/28/2015)... 2015 Tauriga Sciences, Inc. (OTCQB:  TAUG) or ... today announced that its stockholders approved an increase in ... the Company from 1,000,000,000 to 2,500,000,000 at its Special ... the Law Offices of Nixon Peabody LLP in Midtown ... were 480,655,929 shares of common stock represented either by ...
(Date:7/28/2015)... 2015  Moerae Matrix Inc. announced today the ... with MMI-0100, a first-in-class inhibitor of MAPKAP kinase ... disorders characterized by inflammation and fibrosis.  The study, ... , is a double-blind, two-way cross-over design lipopolysaccharide ... tolerability of MMI-0100 when given via inhalation to ...
Breaking Biology Technology:Analysis of the Global Flow Cytometry Market 2012-2018 with a 2014 Base Year and a 2015-2018 Forecast Period 2VetStem Biopharma weekly veterinary continuing education classes and GMP manufacturing facility tour 2Tauriga Sciences, Inc. Stockholders Approve Increase In Authorized Common Stock 2Tauriga Sciences, Inc. Stockholders Approve Increase In Authorized Common Stock 3Moerae Initiates Lipopolysaccharide (LPS) Challenge Study of Inhaled MMI-0100 for Pulmonary Disease Following Encouraging Safety and Tolerability Observed in Single Ascending Dose Phase 1 Study 2
... CARLSBAD, Calif., Feb. 12 Ardea Biosciences,Inc. (Nasdaq: RDEA ... of Ardea Biosciences, will present at the Roth Capital Partners,20th ... February 19, 2008 Time: 4:00 p.m. Pacific Time ... CA Webcast: http://www.wsw.com/webcast/roth16/rdea/ or ...
... Meeting Date Also Announced, SILVER SPRING, Md., ... ) announced today that it will,release its 2007 ... of market on Tuesday, February 19, 2008., ... Tuesday,February 19, 2008, at 9:00 a.m. Eastern Time. ...
... ConBio Lasers to be Exclusively Featured in Leading Dental Education ... ... 12 HOYA ConBio(TM), a global,leader in dental and aesthetic ... internationally recognized dental education,company, in which VersaWave(TM) and DioDent(TM) Micro ...
Cached Biology Technology:Ardea Biosciences to Present at Roth Capital Partners' 20th Annual OC Growth Stock Conference 2HOYA ConBio and The Hornbrook Group Announce Expanded Alliance 2HOYA ConBio and The Hornbrook Group Announce Expanded Alliance 3