Navigation Links
UF researcher describes new 5-million-year-old saber-toothed cat from Florida
Date:3/14/2013

, Hulbert said. The genus name Rhizosmilodon, meaning "root of Smilodon," implies the animal could be a missing link and direct ancestor of Smilodon, which became extinct about 11,000 years ago.

The study's lead author, Steven Wallace, an associate professor in the department of geosciences and member of the Don Sundquist Center of Excellence in Paleontology at East Tennessee State University, used comparative analysis of saber-toothed cat anatomy to help determine the animal's taxonomy. The analysis was primarily based on structure of the animal's lower jaw and teeth, smaller than the Smilodon and about the size of a modern Florida panther.

"The taxonomy of this animal was controversial because when it was first published 20 years ago, they only had one partial, somewhat-decent lower jaw, and it was missing some of the critical features," Hulbert said. "We now have more complete specimens showing it has a mixture of primitive and advanced characters, and does not match any previously named saber-toothed cat genus or species."

Originally misidentified as a member of the genus Megantereon in the early 1980s, Rhizosmilodon is instead the sister taxon to Megantereon and Smilodon, and the oldest of the group. These three cats are in the same tribe -- meaning they are more closely related than a family or subfamily -- and are often called as saber-toothed cats because of their long canine teeth, Hulbert said.

"When people think of saber-toothed cats, they think of it as just one thing, as if the famous tar pit saber-toothed cat was the only species, when in fact, it was an almost worldwide radiation of cats that lasted over 10 million years and probably had a total of about 20 valid species," Hulbert said. "Counting the newly described animal, there are now six different species of saber-toothed cats known just from Florida."

Saber-toothed cat expert Julie Meachen, an in
'/>"/>

Contact: Richard Hulbert
rhulbert@flmnh.ufl.edu
352-273-1821
University of Florida
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Researchers divide enzyme to conquer genetic puzzle
2. Researchers building stronger, greener concrete with biofuel byproducts
3. Immune cells cluster and communicate like bees, researcher says
4. Fertilizers could help tackle nutritional deficiency in African country, researchers say
5. Stanford researchers map out an alternative energy future for New York
6. Asterixs Roman foes -- Researchers have a better idea of how cancer cells move and grow
7. Researchers find alternative cholesterol-lowering drug for patients who cant tolerate statins
8. Researchers develop tools for discovering new species
9. University of Illinois researchers develop AFM-IR for nanometer scale chemical identification
10. March of Dimes awards $250,000 to researcher who identified heart disease genes
11. Worlds leading lion researcher calls for a Marshall Plan for African wildlife
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2014)... previous studies have shown that marine noise can affect ... from the Universities of Bristol and Exeter and the ... have demonstrated that boat noise stops embryonic development and ... (specifically the sea slug Stylocheilus striatus used ... swim away and later feed on toxic alga but ...
(Date:7/30/2014)... Red Queen in Lewis Carroll,s Through the Looking ... National University of Singapore improved a 35-year-old ecology ... decades to millions of years. , The new ... incorporates the "Red Queen Effect," an evolutionary hypothesis ... which suggests that organisms must constantly increase their ...
(Date:7/30/2014)... knows the shortest distance between two points is a ... sperm have been taking the familiar axiom to heart. ... thought to be intense, with each racing for the ... some species, sperm form cooperative groups that allow them ... , A new study, conducted by Heidi Fisher, a ...
Breaking Biology News(10 mins):Boat noise impacts development and survival of sea hares 2Classic Lewis Carroll character inspires new ecological model 2Classic Lewis Carroll character inspires new ecological model 3When cooperation counts 2When cooperation counts 3
... Inc., Case Western Reserve University and the Cleveland FES ... a five-year, $4.4 million contract from the National Center ... National Institute of Child Health and Human Development (NICHD). ... $2.3 million of the total award over the five-year ...
... established a foothold in understanding how p53 protects against ... aging and lifespan are not well studied. In work ... flies show new evidence that despite the protective role ... levels of p53 activity--at least in some cell types--may ...
... industry could have a damaging effect on plant life, ... New Jersey Institute of Technology (NJIT). , The ... shows that nanoparticles of alumina (aluminum oxide) slowed the ... corn, cucumber, cabbage, carrot and soybean. Alumina nanoparticles are ...
Cached Biology News:Cyberkinetics, Case to develop system to help restore extremity function 2Cyberkinetics, Case to develop system to help restore extremity function 3Cyberkinetics, Case to develop system to help restore extremity function 4Cyberkinetics, Case to develop system to help restore extremity function 5Cyberkinetics, Case to develop system to help restore extremity function 6New clues to the dark side of a key anti-tumor guardian 2NJIT study shows nanoparticles could damage plant life 2
(Date:7/31/2014)... North Shore Towers, a luxury co-op community ... Energy, one of the nation’s leading combined heating and power ... its 43-year-old CHP system. The original CHP system had been ... extend the life of the plant, GI Energy was contracted ... heat recovery equipment, while maintaining continuous operation of the entire ...
(Date:7/31/2014)... SAN DIEGO, July 31, 2014 ... a leading company using proprietary taste science technologies ... for the food, beverage, and ingredient supply industries, ... 2014.  The Company ended the second quarter with ... "During the past quarter Senomyx ...
(Date:7/31/2014)... Diego, CA (PRWEB) July 31, 2014 ... announced today the integration of Omicsoft’s Array Suite with ... both platforms will be able to send data in ... integration works with all versions of tranSMART including the ... the art statistics, visualization and storage for the analysis ...
(Date:7/31/2014)... , July 31, 2014   BioLife Solutions , ... manufacturer and marketer of proprietary clinical grade hypothermic ... precision thermal shipping products for cells and ... 2014 financial results will be released on Thursday, August ... conference call and live webcast at 4:30 p.m. ET ...
Breaking Biology Technology:North Shore Towers Partners with GI Energy to Install Turnkey Natural Gas-Fired Combined Heat and Power Plant 2SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 2SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 3SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 4SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 5SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 6SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 7SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 8SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 9SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 10SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 11SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 12SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 13SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 14SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 15SENOMYX ANNOUNCES CORPORATE UPDATE AND SECOND QUARTER 2014 FINANCIAL RESULTS 16Rancho BioSciences, in Partnership with Omicsoft, have Integrated Array Suite with tranSMART 2Rancho BioSciences, in Partnership with Omicsoft, have Integrated Array Suite with tranSMART 3BioLife Solutions to Report Financial Results for Second Quarter 2014 and Provide Business Update on August 7, 2014 2
... scientists are harnessing nanotechnology to quickly produce ultra-lightweight, ... everyday paper. Simply coating a sheet of ... silver nanowires makes a highly conductive storage device, ... and engineering. "Society really needs a low-cost, ...
... , , MONTREAL, Dec. 7 ... wholly-owned U.S. affiliate, has been selected by the U.S. Department ... the construction and operation of its waste-to-biofuels facility to be ... only four that have been selected in the larger demonstration ...
... , PRINCETON, N.J., Dec. 7 PharmaNet ... services to pharmaceutical, biotechnology, generic drug and medical device ... Company as Chief Information Officer. , In his ... corporate information technology function including strategy development and execution ...
Cached Biology Technology:Dip ordinary paper into ink infused with nanotubes and nanowires to create an instant battery 2Enerkem Awarded $50 Million Funding by U.S. Department of Energy for its Mississippi Biorefinery Project 2Enerkem Awarded $50 Million Funding by U.S. Department of Energy for its Mississippi Biorefinery Project 3Stephen Kasay Joins PharmaNet Development Group as Chief Information Officer 2
Buffer used for mitocapture assays....
... Kit, 25 purifications. Allows rapid ... efficient removal of unincorporated CyDye label ... superior yields of labeled cDNA probe. ... cDNA labeled by either direct incorporation ...
Propidium Iodide: {3,8-diamino-5-[3-(diethylmethylammonio)propyl]-6-phenylphenanthridinium diodide}. Antifade Solution: p-Phenylenediamine and glycerol in PBS solution. 2.5ug/mL Propidium Iodide (PI)...
Detects activated caspases in living cells. Simple/sensitive/straight-forward procedure takes only 30 minutes. Results can be analyzed by flow cytometry/fluorescence microscopy/fluorescence plate rea...
Biology Products: