Navigation Links
After 121 years, identification of 'grave robber' fossil solves a paleontological enigma
Date:11/19/2012

Pittsburgh, PAAn international team of researchers, including Carnegie Museum of Natural History scientist John Wible, has resolved the evolutionary relationships of Necrolestes patagonensis, whose name translates into grave robber, referring to its burrowing and underground lifestyle. This much-debated fossil mammal from South America has been a paleontological riddle for more than 100 years. Scientific perseverance, a recent fossil discovery, and comparative anatomical analysis helped researchers to correctly place the strange 16-million-year-old Necrolestes, with its upturned snout and large limbs for digging, in the mammal evolutionary tree. This finding unexpectedly moves forward the endpoint for the fossils evolutionary lineage by 45 million years, showing that this family of mammals survived the extinction event that marked the end of the Age of Dinosaurs. This is an example of the Lazarus effect, in which a group of organisms is found to have survived far longer than originally thought. Situating Necrolestes among its relatives in the fossil record answers one long-held question, but creates others; it reminds us that there is a lot we dont yet know about the global impacts of the massive extinction event 65 million years ago and it challenges assumptions that the well-documented effects that occurred in western North America were experienced globally.

The scientific paper resolving the mystery of Necrolestes appears today in Proceedings of the National Academy of Sciences USA.

A paleontological riddle

Since its discovery in Patagonia in 1891, Necrolestes has been an enigma. Necrolestes is one of those animals in the textbooks that would appear with a picture and a footnote, and the footnote would say we dont know what it is, says co-author John Wible, Carnegie Museum of Natural History mammalogist and member of the discovery team that also includes researchers from Australia and Arg
'/>"/>

Contact: Leigh Kish
KishL@carnegiemnh.org
412-622-3361
Carnegie Museum of Natural History
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. 1 year after Fukushima
2. AGU: Venice hasnt stopped sinking after all
3. Black flies may have a purpose after all
4. Estrogen hormone reveals protective ability after traumatic brain injury
5. Obstructive sleep apneas damage evident after 1 month
6. Scientists read the ash from the Icelandic volcano 2 years after its eruption
7. Microbial communities shifted dramatically after Deepwater Horizon spill
8. Regenerated cells may restore vision after corneal dysfunction
9. Cinega de Santa Clara unchanged after pilot run of Yuma Desalting Plant
10. Promiscuous squid fatigued after mating
11. Ethylene of no effect - why peppers do not mature after picking
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
After 121 years, identification of 'grave robber' fossil solves a paleontological enigma
(Date:5/7/2015)... 7, 2015 Fingerprint Cards ... and FPC1035, FPC,s smallest touch fingerprint sensors to ... considered for integration on the backside of the ... increased possibilities to integrate touch fingerprint sensors in ... improves possibilities for module manufacturers to customize the ...
(Date:4/27/2015)... Conn. , Apr. 27, 2015 NXT-ID, ... a biometric authentication company focused on the growing mobile ... commence shipping to pre-order customers the first week of ... through the month of May. ... a significant milestone for the company as Wocket® enters ...
(Date:4/20/2015)... The announcement comes as demand for fire ... Ireland,s foremost records management company, has ... an impressive track record of clients within the first 12 ... management sector in Dubai . As a ... employ a further eight staff members at its Irish headquarters. ...
Breaking Biology News(10 mins):FPC Introduces its Smallest Touch Fingerprint Sensors to Date 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 3Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 2Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 3
... that the salmon you had for dinner was not caught in ... in the open water of oceans or bays. Fish farming, a ... population, now supplies, by some estimates, 30 percent of the fish ... shellfish are now grown in farms. Intuitively, it seems a good ...
... common gene variants associated with an increased incidence of ... stroke and kidney failure. The report receiving early online ... variants in genes for proteins involved with cardiovascular response ... levels, an association previously seen in animals but not ...
... fundamentals of biological systems may be leaving K-12 teachers ... new-age homeopaths and other "hucksters," according to a University ... 150th anniversary of Charles Darwin,s classic book "The Origin ... polls still show that only about one third of ...
Cached Biology News:When fish farms are built along the coast, where does the waste go? 2Common gene variants increase risk of hypertension, may lead to new therapies 2Evolution education for K-12 teachers needs beefing up, says CU-Boulder professor 2
(Date:5/20/2015)... and Markets ( http://www.researchandmarkets.com/research/x4b7kw/top_technologies ) has announced ... Insights" report to their offering. Technical ... the Health and Wellness sector and has identified top ... in the year 2015. The research service provides an ... wellness technologies that are anticipated to have the highest ...
(Date:5/20/2015)... 20, 2015  Select Medical Corporation ("Select") (NYSE: ... Commission granted early termination of the waiting period ... 1976, as amended, applicable to the acquisition of ... joint venture that Select has created with Welsh, ... previously announced, MJ Acquisition Corporation has signed a ...
(Date:5/20/2015)... (PRWEB) May 20, 2015 Agricultural firm ... anniversary of its acquisition of Tiger-Sul. Since the ... (Calgary Alberta, Canada) in May 2005, H.J. Baker has ... build it into a comprehensive portfolio of product offerings ... of H.J. Baker and the innovation of Tiger-Sul, transforming ...
(Date:5/20/2015)... SAN DIEGO , May 20, 2015 /PRNewswire/ ... today announced a collaboration with Celgene Corporation to ... novel genomic biomarkers that associate with patient response ... collaboration is intended to help accelerate patient access ... increasing efficiencies in clinical research and development and ...
Breaking Biology Technology:Top Technologies in the Health and Wellness Industry 2015 2Select Medical Corporation's Proposed Acquisition of Concentra Inc. through Joint Venture with Welsh Carson Receives Antitrust Clearance 2Agricultural Firm H.J. Baker & Bro., Inc., Celebrates 10 Years Since Acquisition Of Tiger-Sul 2Agricultural Firm H.J. Baker & Bro., Inc., Celebrates 10 Years Since Acquisition Of Tiger-Sul 3Cypher Genomics Collaborates with Celgene Corporation to Identify Novel Genomic Biomarkers 2
... InstrumentsMENLO PARK, Calif. and NORWOOD, Mass., Jan. 29 ... jointly announced that Advanced Instruments Inc. has made ... The two companies further announced their intention to ... of laboratory instruments for osmolality measurement, incorporating Cantimer,s ...
... Conn., Jan. 29 CuraGen Corporation (Nasdaq: CRGN ... quarter and calendar year of 2008 and provided milestone ... the three month period ended December 31, 2008, CuraGen ... the fourth quarter with $88 million of cash and ...
... Enables Expanded Biologics CapabilitiesST. LOUIS, Jan. 29 ... SAFC(R), a member of the Sigma-Aldrich(R) group ... that it has commenced operations at its 7,000 ... CA. Located adjacent to the Company,s existing flagship ...
Cached Biology Technology:Advanced Instruments Makes Strategic Investment in Cantimer, Inc. 2CuraGen Reports Fourth Quarter 2008 Financial Results; Provides Milestone and Financial Guidance for First Half of 2009 2CuraGen Reports Fourth Quarter 2008 Financial Results; Provides Milestone and Financial Guidance for First Half of 2009 3CuraGen Reports Fourth Quarter 2008 Financial Results; Provides Milestone and Financial Guidance for First Half of 2009 4CuraGen Reports Fourth Quarter 2008 Financial Results; Provides Milestone and Financial Guidance for First Half of 2009 5CuraGen Reports Fourth Quarter 2008 Financial Results; Provides Milestone and Financial Guidance for First Half of 2009 6SAFC Pharma Augments Assay Development Capabilities 2SAFC Pharma Augments Assay Development Capabilities 3SAFC Pharma Augments Assay Development Capabilities 4
adult...
Porcine Serum Available Anticoagulants: N-02: Citrate N-04: Heparin (Na) N-06: K2EDTA N-08: Potassium Oxalate N-10: EDTA (Na) N-03: Alsevers N-05: ACD N-07: CPD N-09: K3EDTA N-11...
... Pig serum is collected from fasted Guinea Pigs. ... Citrate N-04: Heparin (Na) N-06: ... N-10: EDTA (Na) N-03: Alsevers ... N-09: K3EDTA N-11: Heparin ...
EPH electrode, anode, 1. Category: Electrophoresis Systems & Standards & Reagents, IEF & SDS-PAGE & 2-D Electrophoresis, Multiphor II Kits & Components and Accessories....
Biology Products: