Navigation Links
Exploding dinosaur hypothesis implodes
Date:3/28/2012

The pregnant ichthyosaur female from Holzmaden (Germany) that perished 182 million years ago puzzled researchers for quite some time: The skeleton of the extinct marine reptile is almost immaculately preserved and the fossilized bones of the mother animal lie largely in their anatomical position. The bones of the ichthyosaur embryos, however, are a different story: For the most part, they lie scattered outside the body of the mother. Such peculiar bone arrangements are repeatedly found in ichthyosaur skeletons. According to the broadly accepted scientific doctrine, this is the result of exploding carcasses: Putrefaction gases produced during the decomposition process cause the carcass to swell and burst. Through such explosions, even the bones of embryos can supposedly be ejected out of the body. Based on an elaborate series of measurements and an analysis of the physical-biological parameters, however, a research team of sedimentologists, paleontologists and forensic scientists has now managed to dispel the myth of exploding dinosaur carcasses.

Putrefaction gas pressure not high enough

In order to gauge the pressure of the particular gases that can actually develop inside a putrefying ichthyosaur, the researchers sought comparative models and found one in human corpses: Humans and many ichthyosaur species have a similar size range. Consequently, the formation of similar amounts of putrefaction gas can be expected during decomposition. At the Institute of Forensic Medicine in Frankfurt, Germany, a manometer was inserted into the abdominal cavity through the umbilicus in one hundred corpses.The putrefaction gas pressures measured were only 0.035 bar. In the case of the ichthyosaur carcasses that came to rest below 50 to 150 meters of water, however, putrefaction gas pressures of over five to 15 bar would have been necessary to cause an explosion. According to Zurich paleontologist Christian Klug, gas pressures of this dimension and therefo
'/>"/>

Contact: Christian Klug
chklug@pim.uzh.ch
41-764-727-434
University of Zurich
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Study compares sound from exploding volcanoes with jet engines
2. New Healthcare Franchise Opportunity Focuses on Treating Exploding Senior Population
3. Americas smallest dinosaur uncovered
4. Meat-eating dinosaur from Argentina had bird-like breathing system
5. New meat-eating dinosaur from Argentina had bird-like breathing system
6. Mass extinctions and the evolution of dinosaurs
7. A new dinosaur species, Pachyrhinosaur lakustai, unveiled from Pipestone Creek, Alberta, Canada
8. Brain structure provides key to unraveling function of bizarre dinosaur crests
9. Key to function of dinosaur crests found in brain structure
10. Geologist who linked cosmic strike to dinosaurs extinction takes top prize
11. A dinosaur dance floor
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Exploding dinosaur hypothesis implodes
(Date:3/24/2015)... 24, 2015 Research and Markets ( ... "Global Iris Recognition Market 2015-2019" report to their ... Recognition market to grow at a CAGR of 23.5 ... covers the present scenario and the growth prospects of ... To calculate the market size, the report considers the ...
(Date:3/23/2015)... , March 23, 2015 SoundView Technology Group issues ... (NASDAQ: NXTD ) Wocket smart wallet. SoundView was one of ... on their experience with the Wocket in multiple scenarios and ... Whole Foods and other retailers, making both debit and credit ... also says, "If the company meets their plans in ...
(Date:3/20/2015)... Mar. 20, 2015 Research and Markets ... of the "India Sensors Market Forecast and ... The sensor market is projected to grow ... Consumer electronics, automotive, industrial and healthcare sectors ... the country. In addition, adoption of MEMS technology ...
Breaking Biology News(10 mins):Global Iris Recognition Market 2015-2019 with 3M Cogent, Bioenable Technologies, Cross Match Technology, Iris ID Systems & Safran Dominating 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 3Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 4India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 2India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 3
... sink capacity of northern terrestrial ecosystems discovered that ... (CUP) has on average decreased due to warmer ... ecosystems is decreasing in response to autumnal warming ... the journal Nature. The carbon balance of terrestrial ...
... breakthrough in understanding the way atoms move across cell membranes ... development of new treatments for inflammatory diseases such as rheumatoid ... identified a previously unknown natural mechanism that opens ion channels ... into and out of cells through the naturally occurring ...
... burn cleaner, a research report published in the January ... the food industry could take a similar approach toward ... additives would be based on work of Israeli researchers ... wine, fruits, and vegetables) simultaneously with high-fat foods may ...
Cached Biology News:
(Date:4/20/2015)... 2015 - Development of a ... the VOLVOX Platform - To be Presented on Tuesday, ...  Supramolecular Assembly of Antibody-drug Conjugates Using an anti-HER2 Monoclonal ... Sunday, Apr 19, 1:00 PM EST Invictus ... today announced that the company,s novel computational platform technology ...
(Date:4/20/2015)... PASADENA, Calif. , April 20, 2015   ... antibody-based products using its proprietary technology, today announced presentation ... platform for the development of antibody-drug conjugates (ADCs). The data ... Meeting 2015, taking place April 18-22 in ... enthusiastic about these data which point to the many ...
(Date:4/18/2015)... April 18, 2015 Aurigene ... ) will be presenting data at the poster ... of Cancer Research Annual Meeting (April 18-22 in ...      (Logo: http://photos.prnewswire.com/prnh/20130418/608115 ) , ... phosphoribosyltransferase (NAMPT) small molecule inhibitors program, which is ...
(Date:4/17/2015)... CIO Review ( http://www.cioreview.com ) has chosen MMIS ... and Life Science Technology Solution Providers 2015. The positioning ... for life sciences companies. , The annual list ... and members of CIO Review’s editorial board to recognize ... on our radar for some time now for stirring ...
Breaking Biology Technology:Invictus Oncology Announces Two Posters to be Presented Describing its Platform Technology on Supramolecular Therapeutics at the American Association for Cancer Research Annual Meeting, 2015 2Meditope Biosciences Presents Data At The American Association Of Cancer Research (AACR) Annual Meeting Validating Its SnAP Technology Platform 2Aurigene to Present its NAMPT and IRAK-4 Inhibitors Programs at AACR 2015 2MMIS Chosen by CIO Review as Top 20 Most Promising Pharma and Life Science Technology Solution Providers 2015 2
... 16, 2012 PuraMed BioScience, Inc. (OTCBB:PMBS) is pleased ... to the position of Chief Financial Officer. ... Controller for PuraMed BioScience, Inc. gaining extensive experience in ... PuraMed after holding a supervisory position at a well-established, ...
... BREA, Calif., Jan. 16, 2012 New Century Health ... Atul Dhir, M.D., Ph.D., chief executive officer.  Dr. Dhir ... specialty care management services focused on oncology and cardiology.  ... focused exclusively on health care that invested in New ...
... the Centers for Disease Control and Prevention (CDC) have ... the bacterium responsible for staph infections. This new test ... bacteriophage amplification to rapidly identify Staphylococcus aureus . ... S. aureus is critical because the pathogenic ...
Cached Biology Technology:PuraMed BioScience, Inc. Appoints Sue A. Baacke, CPA, as CFO 2Former Sanofi-aventis and US Oncology Executive Joins New Century Health as Chief Executive Officer 2New laboratory method uses mass spectrometry to rapidly detect staph infections 2
...
... Modules Highly efficient ... cloning into advanced λ ... For flexibility ... Systems, the modules of ...
... to siRNA library screening, optimal ... identified and verified for each ... CellReady siRNA Transfection Optimization Kit, ... optimizing transfection conditions in 96 ...
...
Biology Products: