Flying Predator The Size Of A Plane
Discovered In The Gobi Desert (text in english)
A giant pterosaur has been
discovered in the Nemegt Formation in the Gobi desert. The large, dragon-like
creature would have lived and died 70 million years ago, and likely had a
wingspan of 10 to 12 meters (32 to 39 feet), say researchers writing in the Journal
of Vertebrate Paleontology. To put it into perspective, that's a wingspan
greater than the height of a three-story building.
The creature comes from the
Azhdarchidae family, a group of pterosaurs that existed in the late Cretaceous
period. Pterosaurs (such as the pterodactyl) are often mistakenly thought of as
dinosaurs. Unlike birds, which are a type of dinosaur, pterosaurs are actually
flying reptiles.
This particular specimen would have
been found in the arid inland habitat of what is now Mongolia. Although it had
wings, it could walk on all fours and probably stalked its prey (which were
likely baby dinosaurs) on the ground.
Palaeontologists discovered five
fragments of the animal's neck bones in 2006 in a region called Gurilin Tsav in
the western Gobi. The area is well-known for being a fossil treasure trove but
these pterosaur fossils are a rare find. Bones from gigantic species of
pterosaurs have previously been found in Europe and North America. These
remains prove that they also lived in Asia.
The researchers believe that the new
find is also one of the largest pterosaurs known to have existed, rivaling its
cousins the Quetzalcoatlus (found in Texas) and Hatzegopteryx (found in
Romania) in terms of size. These beasts also had an estimated wingspan of 10 to
12 meters. Height-wise they are thought to have been as tall as giraffes (roughly
5.5 meters or 18 feet).
The issue is palaeontologists only
have partial remains, which makes it tough to accurately calculate the size and
shape of the creature. It could be that the neck bones are disproportionately
bulky compared to the rest of the body and researchers have overestimated its
size. It may also be that this particular specimen is smaller or larger than
its species average.
Frustratingly, pterosaur fossils are
often poorly preserved and incomplete because their bones weren't as sturdy as
dinosaurs'.
The researchers have not yet named
the new species or even decided if it is, in fact, a new species because the
remains are so incomplete. The find does, however, show for the very first time
that there were gigantic pterosaurs roaming the Asian skies.
http://pirforosellin.blogspot.gr/ -
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