Navigation Links
Engineering technology pinpoints earliest signs of animal life

Scientists using revolutionary new technology developed at The University of Nottingham have recorded the earliest evidence of animal life so far.

Using a scientific technique known as Hydropyrolysis (using hydrogen gas at high pressure) they have been able to date chemical fossils discovered in sedimentary rocks in Oman. The high-precision technique has shown that these fossil steroids, remnants of a type of sponge known as Demosponges, are between 635 and 750 million years old. They date back to around the time of the Marinoan glaciation, the last of the huge ice ages at the end of the Neoproterozoic era.

The research, published in Nature on February 5 2009, suggests that the shallow waters in some late Cryogenian ocean basins contained dissolved oxygen in concentrations sufficient to support simple multicellular animals at least 100 million years before the rapid diversification of bilaterians early animals with a bilateral symmetry during an interval known as the Cambrian explosion by palaeontologists.

Colin Snape, Professor of Chemical Technology and Chemical Engineering, in the School of Chemical and Environmental Engineering, said: "This landmark study on marine ecosystems was made possible by the unique capability of hydropyrolysis to release key biomarkers from ancient rocks with minimal structural alteration."

Hydropyrolysis also known as HyPy was developed into a commercial system through collaboration with Engineering & Quality Systems and reactor engineering specialist Strata Technology. It was originally designed to liquefy large quantities of coal and strip down complex mixtures of organic chemicals down to their pure carbon skeletons. The technology, which recently won The 2008 Engineer Business Support and Universities Award, also has applications for detecting steroid abuse and cleaning up charcoal samples for radiocarbon dating.

Using biomarker analysis, the discovery, by an international research team from America, Australia and the UK, represents the oldest evidence for animals in the fossil record, and the first evidence for animals predating the termination of the Marinoan glaciations, the second of the two major glacial episodes of the Neoproterozoic which terminated 635 million years ago.

Dr Gordon Love, from the Department of Earth Sciences at the University of California, the principal author on the study said: "By establishing a robust stratigraphic and temporal framework for the Neoproterozoic-Cambrian South Oman Salt Basin strata and by employing state-of-the-art analytical techniques for biomarker recovery and analysis then we have unearthed the first fossil evidence for Cryogenian animals from the detection of anomalously high amount of distinctive steroids produced by sponges. We believe that we are converging on the correct date for the divergence of complex multicellular animal life, between 635 and 750 million years ago. It appears that the climatic shock of the two major glacial episodes of the Neoproterozoic caused a major reorganisation of marine ecosystems including the evolution of animal feeders living on the seafloor. In future, we and others will be screening other sedimentary rocks for animal steroids around and before the first glaciation event, the Sturtian, but so far no convincing signals have been detected prior to the Sturtian glaciation."


Contact: Lindsay Brooke
University of Nottingham

Related biology news :

1. Advancement in tissue engineering promotes oral wound healing
2. Stevens receives $25,000 grant from the Engineering Information Foundation
3. Developer of advanced computing memory, father of biochemical engineering, and innovative engineering educators win highest engineering honors of 2009
4. NTU undergrad is first Singapore champion of an internationally acclaimed engineering competition
5. Engineering algae to make fuel instead of sugar
6. Genetic Engineering & Biotechnology News reports on the trend toward predictive toxicogenomics
7. Stanley to Continue Biometrics In-Service Engineering Support for U.S. Army
8. MIT: Mending broken hearts with tissue engineering
9. NJIT professor finds engineering technique to identify disease-causing genes
10. University success at national engineering awards
11. US Senate confirms Clemson University engineering Dean Esin Gulari to National Science Board
Post Your Comments:
(Date:6/15/2016)... 15, 2016 Transparency Market ... Recognition Market by Application Market - Global Industry Analysis Size ... to the report, the  global gesture recognition market ... and is estimated to grow at a CAGR ... 2024.  Increasing application of gesture recognition ...
(Date:6/3/2016)... LONDON , June 3, 2016 /PRNewswire/ ... Transport Management) von Nepal ... ,Angebot und Lieferung hochsicherer geprägter Kennzeichen, einschließlich ... weltweit führend in der Produktion und Implementierung ... an der Ausschreibung im Januar teilgenommen, aber ...
(Date:6/1/2016)... Favorable Government Initiatives Coupled With ... Identification to Boost Global Biometrics System Market Through 2021  ... report, " Global Biometrics Market By Type, By ... 2011 - 2021", the global biometrics market is projected ... of growing security concerns across various end use sectors ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... , June 23, 2016   Boston Biomedical ... novel compounds designed to target cancer stemness pathways, ... been granted Orphan Drug Designation from the U.S. ... of gastric cancer, including gastroesophageal junction (GEJ) cancer. ... designed to inhibit cancer stemness pathways by targeting ...
(Date:6/23/2016)... 23, 2016 Houston Methodist Willowbrook Hospital ... Sports Association to serve as their official health ... Methodist Willowbrook will provide sponsorship support, athletic training ... association coaches, volunteers, athletes and families. ... Sports Association and to bring Houston Methodist quality ...
(Date:6/23/2016)... -- The Biodesign Challenge (BDC), a university competition that asks ... systems and biotechnology, announced its winning teams at the ... York City . The teams, chosen ... MoMA,s Celeste Bartos Theater during the daylong summit. Keynote ... of architecture and design, and Suzanne Lee , ...
(Date:6/23/2016)... ... June 23, 2016 , ... STACS DNA Inc., the sample tracking ... Arkansas State Crime Laboratory, has joined STACS DNA as a Field Application Specialist. ... Jocelyn Tremblay, President and COO of STACS DNA. “In further expanding our capacity as ...
Breaking Biology Technology: