Navigation Links
New ancient shark species gives insight into origin of great white
Date:11/14/2012

GAINESVILLE, Fla. --- The great white shark is one of the largest living predatory animals and a magnet for media sensationalism, yet its evolutionary history is as misunderstood as its role as a menace.

Originally classified as a direct relative of megatooth sharks, the white shark's evolutionary history has been debated by paleontologists for the last 150 years. In a study appearing in print and online today in the journal Palaeontology, University of Florida researchers name and describe an ancient intermediate form of the white shark, Carcharodon hubbelli, which shows the modern white shark likely descended from broad-toothed mako sharks. The study deviates from the white shark's original classification as a relative of megatooth sharks such as the extinct Carcharocles megalodon, the largest carnivorous shark that ever lived.

Based on recalibrated dates of the excavation site in Peru, the study also concludes the new species was about 2 million years older than previously believed.

"We can look at white sharks today a little bit differently ecologically if we know that they come from a mako shark ancestor," said lead author Dana Ehret, a lecturer at Monmouth University in New Jersey who conducted research for the study as a UF graduate student. "That 2-million-year pushback is pretty significant because in the evolutionary history of white sharks, that puts this species in a more appropriate time category to be ancestral or kind of an intermediate form of white shark."

Most ancient shark species are named using isolated teeth, but analysis of C. hubbelli, also known as Hubbell's white shark, was based on a complete set of jaws with 222 teeth intact and 45 vertebrae. The species was named for Gainesville resident Gordon Hubbell, a collector who recovered the fossils from a farmer who discovered them in the Pisco Formation of southern Peru in 1988. Hubbell donated the specimens to the Florida Mu
'/>"/>

Contact: Paul Ramey
pramey@flmnh.ufl.edu
352-273-2054
University of Florida
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Melting glaciers, enough sand to bury London, and ancient ecosystem engineering
2. Ancient civilizations reveal ways to manage fisheries for sustainability
3. Ancient whale species sheds new light on its modern relatives
4. Ancient Egyptian cotton unveils secrets of domesticated crop evolution
5. Ammonites found mini oases at ancient methane seeps
6. New coelacanth find rewrites history of the ancient fish
7. LSU research finds orangutans host ancient jumping genes
8. Whale population size, dynamics determined based on ancient DNA
9. Ancient giant turtle fossil revealed
10. Like curry? New biological role identified for compound used in ancient medicine
11. Tongue analysis software uses ancient Chinese medicine to warn of disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/22/2014)...  NXT-ID, Inc. (NASDAQ: NXTD and ... focused on the growing mobile commerce market, announces it ... Apollo Robbins for the 2015 International CES debut ... Apollo Robbins will be at the NXT-ID ... some of his famous theft techniques to visiting media ...
(Date:12/19/2014)... Dec. 18, 2014  23andMe, Inc., the leading personal ... that pinpoints fine-scale differences in genetic ancestry of individuals ... Since immigrants first arrived more than four ... has served as a meeting place for peoples ... and the ongoing mixing of peoples with African, European, ...
(Date:12/17/2014)... RALEIGH, N.C. , Dec. 16, 2014 ... has licensed its PerformTek biometric technology to industry leaders ... their highly accurate, clinically validated, biometric wearable products. These ... January 6-9 in Las Vegas . ... the technology is accurate, flexible and robust – with ...
Breaking Biology News(10 mins):NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 3NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 423andMe Study Sketches Genetic Portrait of the United States 223andMe Study Sketches Genetic Portrait of the United States 323andMe Study Sketches Genetic Portrait of the United States 4Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2
... post-weaning multi-systemic wasting syndrome (PMWS) on British Pig Industry published, ... PMWS, Farm-level intervention could save farmers up to 11,500 per ... pig virus, present on 99 per cent of pig farms has ... a whole, costing British farmers as much as 84 per pig ...
... could be improved by a discovery about how chickens regulate ... make-up can affect the signals sent from its stomach to ... enough to eat. Poultry farmers often have to restrict ... of fullness and can overeat, affecting their ability to reproduce. ...
... online publication version of Nature today presents two manuscripts ... and domestication of wheat. These achievements are the results ... and Developmental Biology (IGDB), Chinese Academy of Sciences, Chinese ... projects sequenced and analyzed two ancestral wheat genomes of ...
Cached Biology News:Pig wasting syndrome costing farmers millions 2Appetite genes are key to better diets for poultry, study shows 2The latest genomic studies of wheat sheds new light on crop adaptation and domestication 2The latest genomic studies of wheat sheds new light on crop adaptation and domestication 3
(Date:12/22/2014)... Dec. 22, 2014  ( www.competitivehealth.com ) — Competitive ... medical bill review and advocacy service, has signed an ... WellCard Savings discount health services marketplace. 63% ... more than they expected to pay. As part of ... costs, WellCard Savings is pleased to offer medical bill ...
(Date:12/22/2014)... 22, 2014 Fertility Associates of Memphis ... Bank USA , a network of more than 20 ... partnership, patients have fast access to a national pool ... IVF . Fertility Associates of Memphis is the only ... treatment option. , Dr. William Kutteh , director ...
(Date:12/19/2014)... BioPlus Specialty Pharmacy (BioPlus), one ... of Nick Maroulis, Pharm.D. to the newly created position ... In this position, Dr. Maroulis will continue to manage ... of our multi-site pharmacies as the company expands. Dr. ... that time he has served in many different capacities ...
(Date:12/19/2014)... Dec. 19, 2014 Bina Technologies, Inc. (Bina, ... that they have been acquired by Roche (SIX: RO, ... privately held company that provides a big data platform ... (NGS) data for the academic and translational research markets. ... and will continue to focus on development of their ...
Breaking Biology Technology:WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3BioPlus Specialty Pharmacy Promotes Dr. Nick Maroulis to Vice President of Specialty Pharmacy Services 2Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3
... (WNS) is a poorly understood condition that, in the two ... northeastern states and killed as many as half a million ... measure that may help save the affected bats: providing localized ... no idea why it,s spreading so rapidly," says Justin Boyles, ...
... 5 Cardium Therapeutics (NYSE Alternext US: CXM) today announced ... form of debt with accompanying warrants to purchase shares of ... and sole placement agent for the transaction. The material ... in the Company,s Current Report on Form 8-K to be ...
... March 6 S*BIO Pte Ltd today announced ... Emerging BioScience Company of Singapore Award. Dr. Stephen ... the award on behalf of the company, from ... and Industry.The Annual BioSpectrum awards recognize outstanding contributions ...
Cached Biology Technology:Ecologists propose first prevention for white-nose syndrome death in bats 2Ecologists propose first prevention for white-nose syndrome death in bats 3Cardium Completes $3.5 Million Credit Facility 2Cardium Completes $3.5 Million Credit Facility 3Cardium Completes $3.5 Million Credit Facility 4S*BIO Receives BioSpectrum Editor's Choice, Emerging BioScience Company of Singapore Award 2S*BIO Receives BioSpectrum Editor's Choice, Emerging BioScience Company of Singapore Award 3