The
remains of Africa's oldest dinosaur, which lived more than 230 million years
ago, were discovered in Zimbabwe by scientists.
The
one-meter-tall Mbiresaurus raathi raced on two legs and had a long neck and
sharp jaws.
It
was a species of sauropodomorph, a sauropod cousin that walked on four legs,
according to scientists.
The
skeleton was found during two missions to the Zambezi Valley, which took place
in 2017 and 2019.
The
deputy director of Zimbabwe's National Museums and Monuments, Darlington
Munyikwa, who participated in the excursions, believes that triassic-era
fossils are uncommon when discussing the evolution of early dinosaurs.
He
said that fossils from that era - which ended more than 200 million years ago -
had been unearthed in South America, India and now Zimbabwe.
According
to him, the discovery is anticipated to give further information on the
evolution and movement of early dinosaurs, when the planet was still only one
large continent and Zimbabwe was located nearby.
For
many years, Zimbabwe has known of further fossils in the region, and Mr.
Munyikwa claimed that, subject to financing, there are yet more locations that
require further research.
"It
shows that dinosaurs didn't start out worldwide, ruling the world from the very
beginning," Christopher Griffin, another scientist involved in the
expedition, told the BBC.
"They,
and the animals they lived with, seem to have been constrained to a particular
environment in the far south - what is today South America, southern Africa and
India."
He
added that the find was the "oldest definitive dinosaur ever found in
Africa".
The
discovery was significant because it belonged to the lineage that gave rise to
the sauropod dinosaurs, which also included the diplodocus and the
brontosaurus, according to Prof. Anusuya Chinsamy-Turan of the University of
Cape Town.
She
told the BBC, "It informs us that during the evolution of dinosaurs, they
were discovered on several continents, but they seem to have followed a hot
humid climate rather than a dry hostile one.”We anticipate more coming from
that area."
She
continued by saying that recent gas mining exploration had taken done near the
site of the discovery.
"I
hope that there is a strict policy in place to ensure that if they encounter
fossils, they hand them over to the museums, so we don't lose that
material," she said.
The
near-complete skeleton of the Mbiresaurus raathi is stored in a room in a
museum in Zimbabwe's southern city of Bulawayo. It is thought to date to the
Carnian stage of the Triassic period, when today's Zimbabwe was part of the
massive supercontinent Pangaea.
Dinosaurs
were believed to be well adapted to the high latitudes where today's Zimbabwe
is located, which were humid and had ample vegetation.
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