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:12/17/2014)... Va. , Dec. 15, 2014 ... to make it easier to detect and prevent ... Today the agency started performing an ... capability will validate the authenticity of purchased microcircuits ... The new quality control measures will be conducted ...
(Date:12/17/2014)... , Dec. 16, 2014 Research and Markets ... addition of the "Global Chemical Sensor Market ... http://photos.prnewswire.com/prnh/20130307/600769 One ... increasing demand for medical sensors in biomedical applications. ... for quick and correct diagnosis during surgical procedures. ...
(Date:12/11/2014)... DUBLIN , Dec. 09, 2014 Research ... http://photos.prnewswire.com/prnh/20130307/600769 ( http://www.researchandmarkets.com/research/twhjll/biometrics_market ) ... Market in the APAC Region 2015-2019"  report to ... emerging in this market is advances in technology. ... to upgrade biometric solutions to the latest standard ...
Breaking Biology News(10 mins):Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
(Date:12/17/2014)... AUSTIN, Texas , Dec. 16, 2014  Vermillion, ... company focused on gynecologic disease, today announced the next ... into a premier bio-analytics solutions provider with the naming ... to President and Chief Executive Officer, while current Chairman ... will continue to serve as Chairman. These changes are ...
(Date:12/17/2014)... ROCKVILLE, Md. , Dec. 17, 2014 ... biopharmaceutical company dedicated to the acquisition, development and commercialization ... needs for the global market with a primary commercial ... that it has been granted a Type C meeting ... that the meeting will be held in February 2015.  ...
(Date:12/17/2014)... , Dec. 17, 2014   Synageva BioPharma ... company developing therapeutic products for rare disorders, announced today ... being held in San Francisco, CA. ... and Chief Executive Officer, will present on Monday, January ... The presentation will be webcast live and may be ...
(Date:12/15/2014)... & PETACH TIKVAH, Israel , Dec. ... BCLI ), a leading developer of adult stem ... subsidiary Brainstorm Cell Therapeutics Ltd. was awarded a grant ... Office of the Chief Scientist (OCS).  This is ... of grant support from the Office of the Chief ...
Breaking Biology Technology:Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 2Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 3Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 4CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 2CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 3CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 4CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 5BrainStorm Receives $1,100,000 for its 8th Annual Non-Dilutive Grant from Israel's Chief Scientist Office 2BrainStorm Receives $1,100,000 for its 8th Annual Non-Dilutive Grant from Israel's Chief Scientist Office 3
Cached News: