Navigation Links
Extinct giant shark nursery discovered in Panama
Date:5/17/2010

The six-foot-long babies of the world's biggest shark species, Carcharocles megalodon, frolicked in the warm shallow waters of an ancient shark nursery in what is now Panama, report paleontologists working at the Smithsonian Tropical Research Institute and the University of Florida.

"Adult giant sharks, at 60-70 feet in length, faced few predators, but young sharks faced predation from larger sharks," said Catalina Pimiento, visiting scientist at STRI and graduate student at the University of Florida. "As in several modern shark species, juvenile giant sharks probably spent this vulnerable stage of their lives in shallow water where food was plentiful and large predators had difficulty maneuvering."

Paleontologists from the Smithsonian and the University of Florida collected more than 400 fossil shark teeth from Panamas 10-million-year-old Gatun Formation as part of ongoing work to reveal the origins of this narrow land-bridge that rose to connect North and South America about 3 million years ago. "The 28 teeth that we identified as C. megalodon were mostly from neonates and juveniles," said Pimiento. Researchers used reference collections at the Smithsonian's National Museum of Natural History and the Florida Museum of Natural History to characterize the teeth.

"Very little is known about the life cycle of this giant shark that ruled the oceans not so long ago. Now we think that the young spent their first years close to the coast among mangroves," said STRI staff scientist Carlos Jaramillo, who heads the Canal excavation project.

The team discarded several other explanations for the concentration of small teeth at the site. Before their discovery in Panama, two other fossil beds have been proposed as paleo-shark nurseries: the Williamsburg Formation from the Paleocene and the Oligocene Chandler Bridge Formation, both in the U.S. state of South Carolina.

The sandy soils of the Gatun Formation have been used for years to make cement. Soon these outcrops will be exhausted. Scientists continue to race against the clock to find out more about the ancient inhabitants of the region.


'/>"/>

Contact: Beth King
kingb@si.edu
703-487-3770 x8216
Smithsonian Tropical Research Institute
Source:Eurekalert  

Related biology news :

1. Baiji Dolphin previously thought extinct spotted in the Yangtze River
2. Report: African, Asian, Latin American farm animals face extinction
3. Scientists fear rare dolphin driven to extinction by human activities
4. Research team says extraterrestrial impact to blame for Ice Age extinctions
5. Fossil record supports evidence of impending mass extinction
6. Meteor no longer prime suspect in great extinction
7. NAS Biodiversity and Extinction Meeting Dec. 7-8
8. Scientists warn that species extinction could reduce productivity of plants on Earth by half
9. Stanford researchers say climate change will significantly increase impending bird extinctions
10. Fish farms drive wild salmon populations toward extinction
11. Recovering from a mass extinction
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Extinct giant shark nursery discovered in Panama
(Date:4/11/2017)... , April 11, 2017 Crossmatch®, ... secure authentication solutions, today announced that it has ... Advanced Research Projects Activity (IARPA) to develop next-generation ... program. "Innovation has been a driving ... Thor program will allow us to innovate and ...
(Date:4/11/2017)... , April 11, 2017 No ... but researchers at the New York University Tandon ... of Engineering have found that partial similarities between ... systems used in mobile phones and other electronic ... The vulnerability lies in the fact ...
(Date:4/6/2017)... LONDON , April 6, 2017 ... Control, RFID, ANPR, Document Readers, by End-Use (Transportation & ... Energy Facility, Oil, Gas & Fossil Generation Facility, Nuclear ... Healthcare, Educational, Other) Are you looking for ... Authentication sector? ...
Breaking Biology News(10 mins):
(Date:6/23/2017)... ... June 23, 2017 , ... Ken Hanson, a medical imaging research scientist ... have been selected as this year’s recipients of two top awards from SPIE, ... along with other honorees to accept their awards at a banquet in San Diego, ...
(Date:6/22/2017)... ... June 21, 2017 , ... Beaker, the industry’s ... in the life sciences industry, today announces a strategic partnership with Alcami Corporation, ... full advantage of Beaker’s expertise in executive recruitment solutions, providing Alcami with access ...
(Date:6/22/2017)... Germany (PRWEB) , ... June 22, 2017 , ... ... is taking over the allergy specialists DST Diagnostische Systeme & Technologien GmbH, thereby ... all know someone who suffers from hay fever, urticaria, asthma, atopic eczema or ...
(Date:6/22/2017)... ... June 22, 2017 , ... Tunnell ... the biopharma and life sciences industries, continue to be in demand for their ... Wolf will be speaking on “The State of Information Governance in the Biopharmaceutical ...
Breaking Biology Technology: