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:1/13/2017)... , Jan. 13, 2017 Sandata Technologies, ... for the homecare industry, including Electronic Visit Verification™ ... expert, Justin Jugs, as Senior Vice President of ... 15 years of homecare experience to Sandata, where ... strategic plans to align Sandata,s suite of solutions ...
(Date:1/11/2017)... N.J. , Jan. 11, 2017  Michael Johnson, co-founder of ... Venture Capital Group, Inc., has been named to the elite "Forbes ... 27,  was one of 600 people in 20 fields nationwide to ... percent of the 15,000 applicants were selected. ... He is currently a PhD candidate at ...
(Date:1/4/2017)... LAS VEGAS , Jan. 4, 2017 /PRNewswire/ ... in performance biometric sensor technology, today announced the ... Benchmark™ sensor systems, the highly-accurate biometric sensor ... ® biometric technology, experience and expertise. The ... of Benchmark designed specifically for hearables, and Benchmark ...
Breaking Biology News(10 mins):
(Date:1/24/2017)... 23, 2017  Recognizing the need to grow ... and solutions, the University of Miami announced Monday ... Science and Engineering to achieve those milestones by ... help solve some of the world,s most pressing ... Julio Frenk unveiled the network of intertwined ...
(Date:1/24/2017)... ANGELES , Jan. 23, 2017   Instrument ... Bio-Techne ( Minneapolis, MN ) the ... is the most authoritative newsletter tracking developments in ... market. "Bio-Techne consistently achieved outstanding technical, ... Tanya Samazan, Managing Editor of IBO. "In 2016, ...
(Date:1/24/2017)... MONTREAL , Jan. 23, 2017 /PRNewswire/ - BioAmber Inc. ... has entered into an underwriting agreement with Rodman & ... Co., LLC, as sole book running manager and representative of ... purchase on a firm commitment basis a minimum of ... with warrants to purchase a minimum of 1,052,632 shares ...
(Date:1/23/2017)... -- Spherix Incorporated (Nasdaq: SPEX ) an intellectual ... and monetization of intellectual property, today provided an update ... Anthony Hayes , Chief Executive Officer of Spherix, stated, ... with shareholders about the status of existing monetization efforts ... patent assets that fit with our current holdings.  We ...
Breaking Biology Technology: