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:7/21/2014)... of University of California, Riverside Bourns College of Engineering students ... of a backyard grill reduces by 70 percent the level ... inch thick steel carbon plate with an insulated handle can ... into the grill to allow the plate to slide in ... manufacturers who could sell new grills with the plate already ...
(Date:7/21/2014)... many times do we see an innovation and think, ... minds start turning towards thoughts of our own invention, ... is the concept behind the International Space Station Program ... see what their colleagues have going on in orbit, ... "Our goal is to encourage investigators to propose new ...
(Date:7/21/2014)... Lgar,s team at the INRS nergie Matriaux Tlcommunications ... a spatial and temporal resolution greatly exceeding that ... a femtosecond laser source to shoot a molecular ... vinylidene. An article presenting the advancement was recently ... . , "The approach we developed combines ...
Breaking Biology News(10 mins):Catching grease to cut grill pollution 2International Space Station researcher guides aim to maximize science 2International Space Station researcher guides aim to maximize science 3International Space Station researcher guides aim to maximize science 4
... The combination of extended wakefulness and low-dose alcohol has ... and elevates the risk of getting into a vehicular ... 1 issue of the journal SLEEP. The study, ... for Breathing and Sleep in Heidelberg, Victoria, Australia, focused ...
... farm income, and crop production in the agricultural ... the environment are counterbalanced by surprising stability and ... , The survey, published in the October 2007 ... as improved crop varieties, irrigation, and fertilizer use, ...
... on carbohydrates claims that eating so-called bad carbohydrates will ... Gaesser says, thats just nonsense. Eating sandwiches with white ... you, or necessarily even lead to obesity, he said. ... the Journal of the American Dietetic Association, Gaesser analyzes ...
Cached Biology News:Extended wakefulness, combined with alcohol, severely impairs driving performance 2'Bad carbs' not the enemy, University of Virginia professor finds 2
(Date:7/22/2014)... Biofeedback – When a behavioral ... selecting medication to best treat it can become a ... using electroencephalography (EEG) can help predict which medicine will ... of adverse drug events. , The article “Medication ... current issue of the journal Biofeedback offers evidence that ...
(Date:7/21/2014)... California (PRWEB) July 21, 2014 ... County Workforce Investment Board (WIB) and Las Positas ... to provide technical education and hands-on training for ... Engineering Technology Program at Las Positas is ... training needed for engineering technician careers, and establishes ...
(Date:7/21/2014)... Syracuse University,s College of Arts and Sciences has ... of stainless nanoparticles. , Mathew M. Maye, associate ... $360,000 grant from the National Science Foundation (NSF). ... stainless alloy nanostructures, the results of which may ... batteries. , Maye,s approach is novel, ...
(Date:7/21/2014)... New York , July 21, 2014 /PRNewswire/ ... research on Global & USA ... Size, Trends, and Forecasts ResearchMoz presents ... Cancer Biomaker Market   to 2018 (Identification, Technologies, Market ... Industry Trends, and Pipeline Analysis. GLOBAL ...
Breaking Biology Technology:Analyzing Brain Patterns with EEG Can Help Predict Effective Use of Medication 2Analyzing Brain Patterns with EEG Can Help Predict Effective Use of Medication 3Engineering Program Established for Veterans 2Engineering Program Established for Veterans 3Syracuse University chemist to use NSF grant to study materials chemistry, nanoscience 2Global & USA Cancer Biomaker Market to 2018 (Identification, Technologies, Market Analysis, Competitor Profiles, Companion Diagnostic Co-Development, Business Strategies, Industry Trends, and Pipeline Analysis) - Market Size, Trends, and Forecasts A 2Global & USA Cancer Biomaker Market to 2018 (Identification, Technologies, Market Analysis, Competitor Profiles, Companion Diagnostic Co-Development, Business Strategies, Industry Trends, and Pipeline Analysis) - Market Size, Trends, and Forecasts A 3Global & USA Cancer Biomaker Market to 2018 (Identification, Technologies, Market Analysis, Competitor Profiles, Companion Diagnostic Co-Development, Business Strategies, Industry Trends, and Pipeline Analysis) - Market Size, Trends, and Forecasts A 4Global & USA Cancer Biomaker Market to 2018 (Identification, Technologies, Market Analysis, Competitor Profiles, Companion Diagnostic Co-Development, Business Strategies, Industry Trends, and Pipeline Analysis) - Market Size, Trends, and Forecasts A 5Global & USA Cancer Biomaker Market to 2018 (Identification, Technologies, Market Analysis, Competitor Profiles, Companion Diagnostic Co-Development, Business Strategies, Industry Trends, and Pipeline Analysis) - Market Size, Trends, and Forecasts A 6
... were asked to swing a golf club with one arm, or ... get much accomplished, would you? Or, at the very least, progress ... the field of human embryonic stem cells, the bodys core cells ... limits on financing of embryonic stem cell research have turned out ...
... of our business and professional development. However, we often wait ... before we join a professional organization or attend a business ... and asked the group if they belonged to any professional ... the past 6 months. Most of the respondents said no. ...
... The State of Wisconsin Investments Board has ... manage its $65 billion Wisconsin retirement system trust funds. ... United States and selected Eagles solutions to help facilitate ... ,We chose Eagles solutions because they will help us ...
Cached Biology Technology:Lifting federal limits on stem cell research would speed search for cures 2Lifting federal limits on stem cell research would speed search for cures 3Business networking goes high-tech 2Business networking goes high-tech 3
... muscle cell specific protein, is reported to be ... as intestine, lung and uterus. It shares structural ... expression has been reported in most tissues that ... forms. It is also reported to be expressed ...
PC based system for superior chemifluorescent, chemiluminescent, fluorescent and colorimetric, microarray and microscope imaging and analysis....
Request Info...
... Round Well Plate Sterile ... wide range of 384-well ... high-throughput screening and research. ... assays and are suitable ...
Biology Products: