Navigation Links
Ancient mystery solved
Date:2/19/2008

Geologists at the University of Leicester have solved a puzzle found in rocks half a billion years old.

Some of the most important fossil beds in the world are the Burgess Shales in the Canadian Rockies. Once an ancient sea bed, they were formed shortly after life suddenly became more complex and diverse the so-called Cambrian explosion and are of immense scientific interest.

Normally, only hard parts of ancient animals became fossilised; the bones, teeth or shells. Soft parts were rarely preserved: many plants and invertebrate animals evolved, lived for millions of years and became extinct, but left no trace in the fossil record. The Burgess Shales preserved soft tissue in exquisite detail, and the question of how this came to happen has troubled scientists since the discovery of the fossils in 1909.

Now, painstaking work by Sarah Gabbott and Jan Zalasiewicz of the University of Leicester, with Desmond Collins of the Royal Ontario Museum, has provided an answer. The research has been published in the Journal of the Geological Society.

They analysed the shales millimetre by millimetre, and found that unlike most rocks of this type, they werent slowly deposited, mud flake by mud flake. Instead, a thick slurry powered down a steep slope and instantly buried the animals to a depth where normal decay couldnt occur.

Dr Gabbott said, Not a nice way to go, perhaps, but a swift one- and one that guaranteed immortality (of a sort) for these strange creatures.


'/>"/>

Contact: Sarah Gabbott
sg21@le.ac.uk
01-162-523-636
University of Leicester
Source:Eurekalert

Page: 1

Related biology news :

1. New dinosaur from Mexico offers insights into ancient life on West America
2. Scientists rebuild ancient proteins to reveal primordial Earths temperature
3. Avian origins: new analysis confirms ancient beginnings
4. Ancient fish bones reveal impacts of global warming beneath the sea
5. Scientists melt million-year-old ice in search of ancient microbes
6. Ancient amphibians left full-body imprints
7. Newfound ancient African megadroughts may have driven the evolution of humans and fishes
8. 454 Sequencing: Science paper describes a novel, highly efficient method of sequencing ancient DNA
9. Ancient whale fall from Californias Ao Nuevo Island one of youngest, most complete known
10. Ancient whale fall from Californias Año Nuevo Island one of youngest, most complete known
11. Amber specimen captures ancient chemical battle
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/28/2016)... First quarter 2016:   , ... the first quarter of 2015 The gross margin was ... 18.8) and the operating margin was 40% (-13) Earnings ... flow from operations was SEK 249.9 M (21.2) , ... SEK 7,000-8,500 M. The operating margin for 2016 is ...
(Date:4/26/2016)... DUBLIN , April 27, 2016 ... of the  "Global Multi-modal Biometrics Market 2016-2020"  report ... ) , The analysts forecast ... a CAGR of 15.49% during the period 2016-2020.  ... a number of sectors such as the healthcare, ...
(Date:4/15/2016)... , April 15, 2016  A new partnership ... more accurate underwriting decisions in a fraction of ... competitively priced and high-value life insurance policies to ... With Force Diagnostics, rapid testing (A1C, ... data readings (blood pressure, weight, pulse, BMI, and ...
Breaking Biology News(10 mins):
(Date:5/25/2016)... ... ... Lady had been battling arthritis since the age of two and at ... owner Hannah sought the help of Dr Jeff Christiansen of Superior Veterinary Surgical ... and help with the pain of Lady’s arthritis. Dr Christiansen suggested that in conjunction ...
(Date:5/24/2016)... , May 24, 2016   MedyMatch Technology Ltd ., ... artificial intelligence, real-time decision support tools in the emergency room, ... the 2016 Israeli Advanced Technology Industries (IATI) BioMed Conference. ... Israel,s 15th National Life Sciences and Technology Week, ... David Intercontinental Hotel in Tel Aviv, Israel ...
(Date:5/23/2016)... ... ... blood donations in South Texas and across the nation is growing. , But according to ... are on the decline. In fact, donations across the country are at their lowest point ... the last four years alone. , There is no substitute for blood. , “We want ...
(Date:5/23/2016)... Oxitec CEO Hadyn Parry will testify ... before the United States House Committee on Science, Space and ... controlling the spread of the Aedes aegypti mosquito, ... (Logo: http://photos.prnewswire.com/prnh/20150630/227348 ) Oxitec has pioneered ... in Brazil , Panama ...
Breaking Biology Technology: