Tuesday, 23 April 2013

Dinosaur 'fills fossil record gap'

By Helen Briggs, BBC News
Dinosaur fossils unearthed in Madagascar are of a new species that roamed the Earth about 90 million years ago, say US researchers.

The remains date back to a time when India and Madagascar were one landmass cut off from the rest of the world.

Revealing the discovery in the journal PLOS ONE, scientists say the dinosaur was a bi-pedal meat-eater about the size of a large cow.

It has been named Dahalokely tokana, which means "lonely small bandit".

Madagascar is a treasure trove for palaeontologists, yielding thousands of well-preserved fossils.

“This just reinforces the importance of exploring new areas around the world where undiscovered dinosaur species are still waiting,” Joe SertichDenver Museum of Nature and Science

But the latest discovery is the first new dinosaur species unearthed on the island in almost a decade.

Its Malagasy name refers to its carnivorous diet and isolation on a landmass in the middle of the ocean.

The discovery fills a gap in the fossil record and raises intriguing questions about the evolution of animals on both Madagascar and India, which separated at about the time this newly identified creature walked the Earth.

Andrew Farke of the Raymond M Alf Museum of Paleontology in Claremont, California, says it belongs to a group called the Abelisauridae, which were common to the southern continents.

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