Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
26 April 2018 Photo Supplied
Pretzel-formed fossil of great evolutionary interest
Slab with holotype of Parapsammichnites pretzelifornic from the Urusis Formation, Namibia. Scale bar is 1cm.Picture was taken from Buatois et al., 2018.

The acclaimed scientific journal, Nature, recently published an article about a trace fossil in approximately 543-million-year-old rocks, which elucidates the evolution of the first animals that appeared on Earth and lived in the sea.  

Affiliated Professor in the Department of Geology at the University of the Free State (UFS) Prof Gerard Germs formed part of a team that conducted research with the aim of understanding how the evolution of the first multicellular animals came about and how the Cambrian explosion took place. Prof Germs is of great value to the team for his extended field geological knowledge.

An article which he co-authored was published in the Nature Scientific Reports. The title of the article is: “Sediment disturbance by Ediacaran bulldozers and the roots of the Cambrian explosion”. The international group of writers included authors from Canada, Spain and South Africa. 

Occurrence of the Cambrian explosion
Prof Germs explains the Cambrian explosion: “During the long (4.5-billion-year) history of the Earth, the first life originated and subsequently evolution of plants and animals took place from one-cellular organisms to multicellular vertebrate animals and seed plants. Approximately 573 million years ago the first multicellular animals appeared on the scene. Sometime afterwards, approximately 540 million years ago, a kind of explosion in the origin of many new animal species occurred. This explosion is known as the Cambrian explosion.”

The team studied Earth sediments which are somewhat older than the Cambrian explosion. Such sediments are approximately 573 to 541 million years old and form part of the Ediacaran (late Neoproterozoic) period.

“My discoveries of the past, of among others, the oldest animal with a carbonate skeleton (Cloudina) and of complex horizontal Cambrian-type “worm” tracks (treptichnids) in Ediacaran sediments of Namibia have demonstrated that the Cambrian explosion occurred more gradually than previously thought. This has recently been confirmed in the article that was published in the Nature Scientific Reports.”

Pretzeliformis bulldoze to search for food
According to the article there is evidence that   during the Ediacaran period   worm-like animals such as the Parasammichnites pretzeliformis were already so far developed that they, due to coelom development and size increase, for the first time in the history of the Earth, were able to disturb and bulldoze sediments.  In this way they were able to find a new food source in sea sediments. Bulldozing animals were previously thought to have originated only during and after the Cambrian explosion and not during the older Ediacaran.

“Another major aim of my cooperative research is to improve our knowledge of the geology of the Ediacaran to early Cambrian of South Africa and Namibia. We also intend to establish how the assembly of the supercontinent Gondwana took place. This improved knowledge can be of great future economic interest since large oil, gas and limestone sources occur in Ediacaran-age sediments outside South Africa”.

News Archive

UFS welcomes two new deans in the faculties of Theology and Law
2014-08-04

 

The university council has approved the appointment of two deans: Prof Fanie Snyman, at the Faculty of Theology and Prof Caroline Nicholson, at the Faculty of Law.

Both professors offer the university a wealth of knowledge and experience in research and teaching.

Prof Fanie Snyman

Prof Snyman joined the university in 1984 as a senior lecturer in the Department Old Testament. His career followed a steadfast ascent which led him to attaining the title of professor and head of department the following year. On 1 July 2013, Prof Snyman took on the additional role of acting dean of the faculty.

As dean, he set out a clear vision of academic leadership with four primary focus areas: research, teaching and learning, internationalisation and regional engagement.

He is the author of eight books and contributed to seven internationally- and twelve nationally-published books. He has published nine articles in international journals and about 60 more in accredited journals.

Prof Snyman proposes to bring staff members together to extensively rethink and reposition the faculty in terms of identity, transformation and the way forward. “We live in a complex world, characterised by uncertainty and in constant change. This calls for complex but also innovative solutions,” he says.

Prof Caroline Nicholson

Prof Caroline Nicholson was born in Scotland and came to South Africa as a young child. She obtained her BProc and LLB degrees at the University of the Witwatersrand and completed her articles of clerkship at Chernin’s in Hyde Park Corner, Johannesburg. Prof Nicholson was admitted as both an attorney and notary public of the then Supreme Court of South Africa in 1986.

In 1986 she joined the University of South Africa (UNISA ) as a lecturer and remained there until 1999. During this time she completed an LLM in Banking Law and an LLD in Comparative Conflict of Laws – focusing on international parental child abduction. During the same year she moved to the Faculty of Law at the University of Pretoria where she worked for the last fifteen years. In 2003 she completed a Postgraduate Diploma in Alternative Dispute Resolution (ADR) and has an abiding interest in ADR, especially within the Family Law context.

Prof Nicholson has produced numerous articles and research presentations on a variety of legal subjects. Her primary areas of interest are, however, legal education and child law. She is known both nationally and internationally for her research contributions.

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept