HOME >> BIOLOGY >> NEWS
Science Report: Super-crocodile crawls out of the African Cretaceous

odilian was covered from head to mid tail in an overlapping armor of scutes (bony plates embedded in the skin), each sporting annual growth rings that the researchers used to estimate the age of a given animal.

Thin sections from scutes, taken from a fossil individual that had reached about 80 percent of its estimated adult size, show around 40 growth rings. This may mean that the animals took 50 to 60 years to reach their full size, says the Science study team.

This surprising longevity for a crocodilian suggests that Sarcosuchus attained its mammoth proportions by extending the duration of its growing time, rather than speeding up its rate of growth like most dinosaurs, says Sereno.

The new Sarcosuchus skulls have long snouts, comprising about 75 percent of total skull length, that are relatively broad compared to the needle nose of the living gharial (a modern crocodilian from India) and other ancient, narrow-snouted crocodilians like Pholidosaurus and Terminonaris.

Features in the skull and jaw link Sarcosuchus with Pholidosaurus and Terminonaris on the reptile family tree, according to the Science report. Yet unlike Pholidosaurus and Terminonaris, found in marine deposits, Sarcosuchus fossils come from river deposits, located about 100 miles from any ancient coastline.

These two crocodilian cousins were also specialized fish-eaters, while Sarcosuchus' anatomy points to a more generalized diet. Sarcosuchus had a substantial overbite, with its upper jaw overhanging the front teeth of the lower jaw. All the teeth of the lower jaw fit inside the upper tooth rows during a bite, rather than interlocking like the teeth of an exclusively fish-feeding jaw. Many of Sarcosuchus' teeth themselves are stout, smooth, and rounded, more suited for puncturing and crushing, says Sereno, who believes the giant may have included dinosau
'"/>

Contact: Lisa Onaga
lonaga@aaas.org
202-326-7088
American Association for the Advancement of Science
25-Oct-2001


Page: 1 2 3

Related biology news :

1. A long-necked sea predator from China described in Science
2. Brown ecologist garners major National Science Foundation grant
3. Popular Science announces Third Annual Brilliant 10
4. Winner of 2004 EMBO Science Writing Prize announced
5. Study in Science reveals recreational fishing takes big bite of ocean catch
6. New paper in Science introduces revolutionary new paradigm for fishery management
7. Articles on forest fire risks published in BioScience
8. Ralph J. Cicerone nominated to be next National Academy of Sciences president
9. Canine word-learning research published in Science
10. Articles on remote sensing in ecology published in BioScience
11. Fostering Diversity in the Sciences Symposium

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Science Report Super crocodile crawls out the African Cretaceous

(Date:12/19/2014)... 18, 2014   LaunchKey , the first decentralized mobile ... Internet of Things era, today announced the close of ... was led by Metamorphic Ventures with participation from ENIAC ... and others.  LaunchKey has raised $4 million to date, ...
(Date:12/17/2014)... Valencell, a leader in performance biometric data sensor ... leaders such as Intel, Jabra, Atlas, and Scosche to ... These products will be showcased at CES 2015, taking ... . "Our partners choose PerformTek biometrics, ...
(Date:12/11/2014)... and Markets , http://photos.prnewswire.com/prnh/20130307/600769 ... the addition of the "Biometrics Market in the ... One major trend emerging in this market is ... is important to upgrade biometric solutions to the latest ...
Breaking Biology News(10 mins):LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
(Date:12/24/2014)... Dec. 24, 2014  United Therapeutics Corporation (NASDAQ: ... MDT ) has submitted a pre-market approval application ... the use of Medtronic,s SynchroMed ® II implantable ... use with United Therapeutics, Remodulin ® (treprostinil) Injection ...
(Date:12/24/2014)...  Vermillion, Inc. (Nasdaq:   VRML), a bio-analytical solutions ... the Company closed its previously announced private placement ... W. Schuler , Birchview Fund LLC and several ... offering expenses.  The proceeds will be used for ...
(Date:12/24/2014)... (PRWEB) December 23, 2014 “Preparative ... Gas, HPLC, Flash), Consumables (Columns, Solvents, Buffers, Valves, ... Food & Agriculture) - Forecasts to 2019” provides ... challenges, opportunities, current market trends, and strategies impacting ...
(Date:12/24/2014)... Earlier this year in a June 24 international conference presentation, ... Technology Center, LLC ( ASCTC ) focused attention on an ... stem cells. His title “Asymmetric Self-Renewal by Distributed Stem ... the essence of his message to congress participants. He ...
Breaking Biology Technology:United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Vermillion Announces Closing of Equity Financing 2Vermillion Announces Closing of Equity Financing 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 2Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 4
Cached News: