Teeth signs suggest that “bird terrorism” was killed reptile

Victoria Gill

A scientific correspondent, BBC NEWS

Link et al./lists on biology shows the impression of an artist about a terrorist bird, which is attacked by Cayman, a large crocodile predator. Cayman leaves the river and grabs a panic bird on the leg. This reflects a scene that, according to scientists, can happen 13 million years ago in Colombia. Link et al./licle of biology

According to researchers, the bird of terror did not survive the meeting

Scientists may have killed him on the bone on the leg of a large bird reptile, known as a bird of terrorism 13 million years ago, believes that even more predator.

Birds of terror were the best predators – they could be higher than the person, and had powerful feet and hooked, the pulp of the beak.

Paleontologists in Colombia corresponded to the footsteps of the fossil bone of one of these terrible birds to a kayman or reptile, similar to a crocodile.

3D -welcoming bites allowed scientists to restore what, in their opinion, was a “battle to death” that the bird of terrorism did not survive.

Link et al./biological letters in the picture show a digital scan of a crocodile skull that bites into a small bone of the legs. The bone, which was bitten, is based on a 3D, a 13 -millic bone of terrorism.  Link et al./licle of biology

The researchers scanned the footprints of the legs and compared it with the skulls and teeth of the crocodile predators

A new study, Published in the Biological Letters magazineComparing the size and shape of the teeth with the skulls and teeth of the crocodile predators in museum collections.

It provides rare evidence, according to researchers, about the interaction of the two extinct predators at the time.

The bone of the legs studied by scientists for the first time was excavated more than 15 years ago in the desert of Dadakoa Colombia.

If the bird lived in the swamps of this territory 13 million years ago, it would be about 2.5 million. Height and used legs and beak to hold and thwart its prey.

The fact that scientists are unable to prove whether this particular, unhappy bird of terrorism was killed as a result of the attack, or when Cayman cleared his remains.

“There are no signs of healing in the footsteps of the bone,” explained the leading researcher Andres Link of the Uniddad de Los -Andnda, Colombia.

“So, if he was not dead yet, he died as a result of the attack. It was the last day when the bird was on this planet – then a piece of legs was found in 13 million years.”

Andres connects an image that shows a piece of fossilized bone from the feet of the bird. Two holes are visible to the bones - the punctures left by the teeth of predatory reptiles. Andres Link

The footprints of the teeth are clearly visible on a piece of bone leg

In the desert daddy live rich fossil deposits from an era known as the Middle Miacecent.

At the time, it was a wet swamp where the rivers were trapped and the bones of dead animals, which led to the remains today.

This particular bone was first discovered about 15 years ago by local fossil collector Cesar August Paradam.

Colombian scientists cooperated closely with Mr. Paradam, studying and cataloging the fossils he had collected in his museum. It was when scientists worked in the museum, that they realized that this piece of feet came from the fist from a bird of terror.

It was an exciting discovery – the fossil birds are rare. But Dr. Link and his colleagues were also fascinated by bones, which were clearly made by the teeth of another powerful predator.

Andres refers to an image showing fossil requests in a dusty area in Colombia. The man wears a red shirt and a wide hat to protect it from the sun. His legs are naked, and he carefully inspects the ground on the fossil. Andres Link

Sesar August Paradama collects fossils as a child

This new signs analysis showed that they most accurately correspond to the extinct species called Purussaurus Neivensis, a Krakowel, who would be up to five meters.

Researchers say he would put prey from the edge of the water, as well as crocodiles and kayans.

“I think he waited when the prey was near,” said D -R Link.

If it really was the battle between the two apical predators, Dr. Link says he gives an idea of an ancient ecosystem. This shows that the fierce birds of terror were much more vulnerable to predators than it was previously thought.

“Each piece of body helps us to understand so much about life on the planet in the past,” said D -R Link BBC News.

“It strikes me – how one tiny bone can complete the story.”

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