Navigation Links
Pristine reptile fossil holds new information about aquatic adaptations
Date:11/16/2011

Extinct animals hide their secrets well, but an exceptionally well-preserved fossil of an aquatic reptile, with traces of soft tissue present, is providing scientists a new window into the behavior of these ancient swimmers.

According to the study published in PLoS ONE's November 16th issue, the fossil, characterized by a team led by Johan Lindgren of Lund University in Sweden, is from the mosasaur family, a group of reptiles that lived between 65 and 98 million years ago. The fossil was found in Western Kansas, and was submerged under a shallow sea at the time of the mosasaur's existence.

Previous analysis of mosasaur locomotion had been limited by a lack of soft tissue fossils, which was crucial for the scientists to truly understand the degree of aquatic adaptation that the creature had achieved. The new findings, which include scales and skin impressions, suggest that the mosasaur was able to minimize its frictional drag in the water. Additional features suggest that it held the front of its body somewhat rigid during swimming, leading it to depend on the rear of its body and tail for propulsion.

According to Dr. Lindgren, this study provides "unique insights into the biology of an extinct group of marine lizards that became adapted to aquatic environments in a fashion similar to that of the preceding ichthyosaurs ('fish-lizards') and succeeding whales." Thus, these results may have implications for understanding how this group ultimately transformed from land-dwellers to pelagic cruisers in a relatively short period of geological time.


'/>"/>

Contact: Yael Franco
yfranco@plos.org
415-568-3169
Public Library of Science
Source:Eurekalert

Page: 1

Related biology news :

1. Millenium atoll: A pristine ecosystem
2. Pristine rainforests are biogeochemical reactors
3. Rare 95 million-year-old flying reptile Aetodactylus halli is new pterosaur genus, species
4. Ice-age reptile extinctions provide a glimpse of likely responses to human-caused climate change
5. New species of flying reptile identified on B.C. coast
6. Rare 89 million-year-old flying reptile fossil from Texas may be worlds oldest Pteranodon
7. The pain of evolution: A big toothache for reptiles
8. Reptile cousins shed new light on end-Permian extinction
9. Good guy or bad guy? Diagnosing stomach disease in pet reptiles
10. The rise and rise of the flying reptiles
11. UF-led study: Invasive amphibians, reptiles in Florida outnumber world
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/1/2017)...  Aware, Inc. (NASDAQ: AWRE), a leading supplier of ... Moberg has resigned, effective March 3, 2017, as ... and Treasurer of Aware citing a desire to retire.  ... of the Board of Directors of Aware. ... and co-President, General Counsel has been named Chief Executive ...
(Date:2/27/2017)...   Strategic Cyber Ventures , the industry,s first ... $3.5 million investment in  Polarity , the first commercial ... DC based and is led by cybersecurity veterans ... Ron Gula , also a longtime cybersecurity veteran and ... series A round of funding. This new funding will ...
(Date:2/21/2017)... and PORTLAND, Ore. , Feb. 22, ... Avamere Family of Companies (Avamere Health Services, Infinity Rehab, ... six-month research study that will apply the power of ... senior living and health centers. By analyzing data streaming ... gain insights into physical and environmental conditions, and obtain ...
Breaking Biology News(10 mins):
(Date:3/28/2017)... ... March 28, 2017 , ... Benchworks ... 22 in Philadelphia. The event was offered by the Chamber of Commerce for ... featured breakout groups and interaction with speakers who are leaders in their industries. ...
(Date:3/28/2017)... -- Summary This report provides all the ... partnering interests and activities since 2010. Description The Partnering ... into the partnering activity of one of the world,s leading ... prepared upon purchase to ensure inclusion of the most up ... will be delivered in PDF format within 1 working day ...
(Date:3/28/2017)... , March 28, 2017  The National Pharmaceutical Council ... the health policy research organization as its newest member. ... Regulatory Affairs ( North America ), will ... Directors. "We,re pleased to have Ipsen and ... Dan Leonard . "We welcome their insights in ...
(Date:3/28/2017)... Mass. , March 28, 2017 ... a biotechnology company developing bioengineered organ implants to treat ... and trachea, today announced that Jim McGorry, CEO ... Printing and BioEngineering panel at the MassBio ... at 2:30 PM ET in Cambrige, Massachussetts. The ...
Breaking Biology Technology: