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Ancient jaw bones discovered in Sahara help scientists identify new pterodactyl

Date:
May 27, 2010
Source:
University College Dublin
Summary:
With the help of ancient fossils unearthed in the Sahara desert, scientists have identified a new type of pterosaur (giant flying reptile or pterodactyl) that existed about 95 million years ago.

An artists impression of Alanqa saharica.
Credit: By Davide Bonadonna

With the help of ancient fossils unearthed in the Sahara desert, scientists have identified a new type of pterosaur (giant flying reptile or pterodactyl) that existed about 95 million years ago.

According to the findings published in the scientific journal PLoS ONE, the scientists consider the newly identified pterosaur to be the earliest example of its kind.

Unearthed in three separate pieces, the jaw bone has a total length of 344mm (13.5 inches). Each piece is well preserved, uncrushed, and unlike most other pterosaur fossils, retains its original three dimension shape.

"This pterosaur is distinguished from all others by its lance-shaped lower jaw which had no teeth and looked rather like the beak of a heron," says Nizar Ibrahim, a PhD research scholar from University College Dublin, who led the expedition and is the lead author on the scientific paper.

"During the excavation, we also discovered a partial neck vertebra that probably belonged to the same animal, inferring a wing span of about six metres."

The scientists have named the new pterosaur Alanqa saharica from the Arabic word 'Al Anqa' meaning Phoenix, a mythological flying creature that dies in a fire and is reborn from the ashes of that fire.

On the same expedition, and in the same region as where the fossils of Alanqa saharica were uncovered, the scientists also discovered fossils of two other previously identified types of pterosaur. This suggests that several types of pterosaurs lived alongside one another in the same region at the time, each probably specialising in a different ecological niche.

"When this pterosaur was alive, the Sahara desert was a river bed basin lush with tropical plant and animal life," explains Ibrahim. "This means there were lots of opportunities for different pterosaurs to co-exist, and perhaps feeding on quite different kinds of prey."

Pterosaur bones are seldom preserved in the fossil record because they were light and flimsy in order to be optimised for flight. Until now there have been few significant pterosaur fossil finds in Africa.


Story Source:

The above story is based on materials provided by University College Dublin. Note: Materials may be edited for content and length.


Journal Reference:

  1. Nizar Ibrahim, David M. Unwin, David M. Martill, Lahssen Baidder, Samir Zouhri. A new pterosaur (Pterodactyloidea: Azhdarchidae) from the Upper Cretaceous of Morocco. PLoS ONE, 2010; 5 (5): e10875 DOI: 10.1371/journal.pone.0010875

Cite This Page:

University College Dublin. "Ancient jaw bones discovered in Sahara help scientists identify new pterodactyl." ScienceDaily. ScienceDaily, 27 May 2010. <www.sciencedaily.com/releases/2010/05/100526095818.htm>.
University College Dublin. (2010, May 27). Ancient jaw bones discovered in Sahara help scientists identify new pterodactyl. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2010/05/100526095818.htm
University College Dublin. "Ancient jaw bones discovered in Sahara help scientists identify new pterodactyl." ScienceDaily. www.sciencedaily.com/releases/2010/05/100526095818.htm (accessed October 20, 2014).

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