Wednesday, July 1, 2020

World's largest graveyard of Dinosaurs found in South Africa

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Nikhita Gautam

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World's largest graveyard of Dinosaurs found in South Africa

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Global Views 360

Publication Date

July 1, 2020

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‘African dinosaurs’ exhibit at the Iziko South African Museum in Cape Town

‘African dinosaurs’ exhibit at the Iziko South African Museum in Cape Town | Source: Bruce Anderson via Wikimedia

In a village in the eastern cape of South Africa lies one of the most significant dinosaur sites ever found in the world. The site was discovered when a shepherd, Dumangwe Thyobeka found a large bone on his way to his great-grandparents’ graves, in 2015. He then took the bones to a local dinosaur enthusiast, James Rhalene. Commenting on this discovery " Mr. Rhalene said, "Growing up we were told dinosaurs were a myth, I thought they were only tales our grandparents would tell around the fire at story time", and It wasn't until reading some books that I started to believe they may be real. I've been looking into the existence of dinosaurs since 1982. He added, "You can imagine my excitement at being part of this and discovering them in my own backyard. I am so proud. Books will be written about our small village; the world will come to know of us through this discovery.”

These bones are more than 200 million years old, of around the end of the Triassic era and the beginning of the Jurassic one. When the village elder, Sginyane Ralane came to know about the discovery, he reached out to universities in South Africa for looking into it. The news eventually reached Prof. Jonah Choiniere from the University of Witwatersrand in Johannesburg, and in 2018 Jonah and his colleagues started excavating the site. “It has been one of those places where you sometimes find yourself literally tripping over a dinosaur bone. There are very few other sites I've had the chance to work where we have this richness of fossils.” says Prof Paul Barett, a dinosaur expert at The Natural History Museum, UK, after he joined the team.

A reason why this area is abundant in fossils, Natural History Museum explains, is because of the ancient river systems in the area. The area is arid for most of the year now, and the rivers flow only seasonally. However, in the ancient times, there were vast river systems flowing year-round in the region, with wide, shallow rivers which would consequently form a layer of rock 210 million years old which is up to 500 meters thick in some regions. These rivers supported diverse wildlife, including ancestors of crocodiles, possibly those of turtles and mammals and fish, amphibians and reptile-like animals. The existence of such large rivers meant that dead animals nearby would be buried in sediment before they decomposed.  

This discovery is scientifically important for a number of reasons; the era from which these bones are found is a boundary in which a mass extinction occurred. Prof. Jonah is trying to understand how the animals from before that extinction survived and how they flourished after. In the Triassic era, there were multiple dominating animals, like the crocodiles, big mammal-like animals and dinosaurs. In the Jurassic era, however, the dinosaurs are clearly dominating. Why this happened is unclear, and the rocks and fossils from this site might help with that. There were also other animals along with dinosaurs in this site which make it noteworthy. Of the animals found, there were rauisuchians, which relate to modern-day crocodiles, and were dominant on land during the Triassic. The team also found cyclodonts and dicyclodonts, where the cyclodonts are the early ancestors to all mammals, and dicyclodonts are an even earlier branch of the mammalian family tree.

All of these have a significant impact on the community too; the team signed a memorandum of understanding with the local government with huge. After the signing, local officials visited the site at Qhemega. The team has been trying to use the heavy machinery they had brought for moving fossils for improving access in and to the village. They are also developing a curriculum in high schools to include topics about fossil sites and to add geography to the curriculum, to train the younger generation about the mapping used in excavation and in many other scientific fields especially relevant in the mineral-resource rich South Africa.

So far, this site has only provided benefits for everyone involved; new discoveries and confirming data for the scientific community, and economic access, increased opportunities and a matter for pride for the local community.

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February 4, 2021 5:04 PM

Yemen's Multilayered War: Southern Secessionist Movement

This is the 5th part of a short explainer article series on the current crisis in Yemen. To read the earlier parts of the series click on the link.

To read the 1st part of the series click on the link.

To read the 2nd part of the series click on the link.

To read the 3rd part of the series click on the link.

To read the 4th part of the series click on the link.

Since the unification of Yemen in 1990 the political, economic and military leadership was dominated by the Northerners which resulted in continuous conflicts. It was the fight against Al Qaeda linked elements and the Houthis that the political and military forces continued to work together.

A formidable coalition of UAE and Saudi Arabia, led by Mohammed Bin Zayed (MBZ) and Mohammad Bin Salman (MBS), the Crown Princes of respective countries, backed the deposed President of Yemen Mansour Al Hadi in his fight against Houthis. The Houthi forces were supported primarily by Iran which is the geopolitical rival of Saudi Arabia.

The coalition forces used heavy aerial bombardment and naval blockades, but contrary to their expectation, Houthis proved to be formidable opponents and were able to withstand the assaults. President Hadi was confined to Aden and his forces, in spite of massive backing, couldn't dislodge the Houthis from Sana’a. Iranian help in the form of military hardware and trainers enabled the Houthis to launch some spectacular attacks deep inside the Saudi Arabian territory as well.

The failure of President Hadi led forces against Houthis along with the increasing activities of Al Qaeda in Arabiam Peninsula (AQAP) encouraged the revival of a long suppressed secessionist movement in Southern Yemen, Al-Hirak al-Janoubi commonly called Hirak.

Al-Hirak al-Janoubi :

During the rule of President Abdullah Saleh’s rule in 2007, another movement for promoting the secession of Southern Yemen was launched. It was known as Al Hirak and its objective was to revert to the pre-unification status of Yemen. This movement could not garner much support but was lying dormant for a long time.

In 2017 a faction of Al-Hirak movement formed Al-Hirak al-Janoubi or The Southern Transitional Council (STC). Its current members consist of governorates in the southern part of Yemen. It is headed by a former governor of Aden, Aidarus al-Zoubaidi.

Aidarus al-Zoubaidi, Head of STC | Source: Aboodalyazedi Via Wikimedia

Zoubaidi was dismissed as governor of Aden by Hadi in 2017 for his close ties to the UAE. As a governor Zoubaidi was quite popular in Aden, and his dismissal was met with protests against President Hadi. With support from the UAE he went on to form the STC, also known as the Separatists.

In 2018, the Separatists occupied the government at Aden in a coup d’état against the Hadi government, leading to 38 deaths. The Hadi government called this a UAE backed-coup. Since the UAE and Saudi Arabia are part of the same Arab coalition, they agreed to sit down for talks regarding the Yemen issue.

Despite this, the Separatists took over Aden in 2019, leading to much confusion over who controls the basic services and administrative duties (such as payment of civil servants) in the city.

The BBC reported that “In April 2020 the STC declared self-rule in Aden, breaking a peace deal signed with the internationally recognised government, saying it would govern the port city and southern provinces.”

So in effect Yemen is now governed by three separate entities, Houthis in North Yemen, STC and Hadi faction in Southern part of Yemen. Apart from this in parts of tribal hinterland, Al Qaeda is running its writ. There is a real danger that Yemen is now on the path to disintegration.

To read the 6th part of the series click on the link.

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