Navigation Links
Super-sized muscle made twin-horned dinosaur a speedster
Date:10/14/2011

A meat-eating dinosaur that terrorized its plant-eating neighbours in South America was a lot deadlier than first thought, a University of Alberta researcher has found.

Carnotaurus was a seven-metre-long predator with a huge tail muscle that U of A paleontology graduate student Scott Persons says made it one of the fastest running hunters of its time.

A close examination of the tail bones of Carnotaurus showed its caudofemoralis muscle had a tendon that attached to its upper leg bones. Flexing this muscle pulled the legs backwards and gave Carnotaurus more power and speed in every step.

In earlier research, Persons found a similar tail-muscle and leg-power combination in the iconic predator Tyrannosaurus rex. Up until Persons published that paper, many dinosaur researchers thought T. rex's huge tail might have simply served as a teeter-totter-like counterweight to its huge, heavy head.

Persons' examination of the tail of Carnotaurus showed that along its length were pairs of tall rib-like bones that interlocked with the next pair in line. Using 3-D computer models, Persons recreated the tail muscles of Carnotaurus. He found that the unusual tail ribs supported a huge caudofemoralis muscle. The interlocked bone structure along the dinosaur's tail did present one drawback: the tail was rigid, making it difficult for the hunter to make quick, fluid turns. Persons says that what Carnotaurus gave up in maneuverability, it made up for in straight ahead speed. For its size, Carnotaurus had the largest caudofemoralis muscle of any known animal, living or extinct.

Persons published these findings in PLoS ONE on Oct.14, with supervisor Philip Currie, a paleontology professor at the U of A.


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

Page: 1

Related biology news :

1. Super-sized world: Conference addresses global obesity epidemic, explores policies, interventions
2. First NIH-funded personalized drug development center in US will focus on muscle disease
3. Lift weights, eat mustard, build muscles?
4. Arctic ground squirrels muscle up to hunker down
5. Foods rich in protein, dairy products help dieters preserve muscle and lose belly fat: study
6. Researchers investigate muscle-building effect of protein beverages for athletes
7. Crucial role for molecule in muscle development
8. College scientist cites enlarged skeletal muscles as reason birds exist
9. How muscle develops: A dance of cellular skeletons
10. Movement without muscles
11. NIH scientists identify gene that could hold the key to muscle repair
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/5/2016)... 5, 2016  The Office of Justice Programs, ... CT Scans Enhance or Replace Medico Legal Autopsies?" ... supporting or replacing forensic autopsies with postmortem X-ray ... In response to recommendations made by The ... CT scans as a potential component of medicolegal ...
(Date:11/29/2016)... 2016 BioDirection, a privately held medical device ... objective detection of concussion and other traumatic brain injury ... a meeting with the U.S. Food and Drug Administration ... Package. During the meeting company representatives reviewed plans for ... to commencement of a planned pilot trial. ...
(Date:11/22/2016)... 22, 2016 According to the new market research ... Face, Vein, Signature, Voice), Multi-Factor), Component (Hardware and Software), Function (Contact and ... the market is expected to grow from USD 10.74 Billion in 2015 ... between 2016 and 2022. Continue Reading ... ...
Breaking Biology News(10 mins):
(Date:12/8/2016)... ... December 08, 2016 , ... ... control cells — optogenetics — is key to exciting advances in the study ... spatially patterned light projected via free-space optics stimulates small, transparent organisms and excites ...
(Date:12/8/2016)... Mass (PRWEB) , ... December 08, 2016 , ... ... genetic data bioInformatics portal. In response to client demand KbioBox developed a sophisticated ... edit biodesign program. Both are accessible from KBioBox’s new website, https://www.kbiobox.com/ ...
(Date:12/8/2016)... Soligenix, Inc. (OTCQB: SNGX) (Soligenix or the ... commercializing products to treat rare diseases where there is ... be hosting an Investor Webcast Event Friday, December 16, ... innate defense regulators (IDRs) as a new drug class, ... the recently announced and published Phase 2 clinical data ...
(Date:12/8/2016)... 2016   Biocept, Inc . (NASDAQ: ... clinically actionable liquid biopsy tests to improve the ... featuring its Target Selector™ Circulating Tumor Cell platform ... detection of actionable biomarkers in patients with metastatic ... Sara Cannon Research Institute (SCRI), the research arm ...
Breaking Biology Technology: