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2009-02-25 – Miragaia longicollum: nuovo dinosauro scoperto in Portogallo (New dinosaur, Portugal)

on other blogs: SVPOW – SV-POW! showdown: stegosaurs vs sauropods

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New dinosaur discovered in Portugal

A new dinosaur that walked the Earth 150 million years ago has been found in Portugal

Its partial skeleton includes the only known skull remains from any European stegosaur that had a row of bony plates along its back and a spiked tail probably used as a weapon.

The plant eating creature has been called, Miragaia longicollum, after the village it was uncovered in near Lourinha and because of its long neck.

Stegosaurs are normally known for their short forelimbs and short necks, and are generally considered to be low browsers.

But this new dinosaur has a higher neck vertebrae count than most of the sauropods renowned for their small heads on very long necks that were the largest and heaviest dinosaurs that ever existed.

Dr Octavio Mateus, of the New University of Lisbon, said: “Stegosaurs are traditionally reconstructed as feeding on low vegetation because of their small heads, short necks and short forelimbs.

“We describe a new stegosaurian dinosaur from the Upper Jurassic of Portugal that challenges this traditional view.

“Miragaia longicollum possessed at least 17 cervical vertebrae, more than possessed by most sauropod dinosaurs, famed for their long necks.

“This new discovery indicates a previously unsuspected level of ecological diversity among stegosaurs.”

Dr Mateus, whose findings are described in Proceedings of the Royal Society B, said several elements of the skull of Miragaia longicollum were found, “representing the first such material recovered from a European stegosaur.”

He added: “The most notable feature of M. longicollum is its long neck, with at least 17 cervical vertebrae.

“The specimen here described represents one of the most complete stegosaurs in Europe and the first that includes cranial material.”

source: telegraph.co.uk

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Miragaia longicollum

Miragaia longicollum

Stegosaurs have long been identified by the bony plates on their backs, the spikes on their tales, short forelimbs, and stubby little necks.
Now paleontologists have discovered a 150-million-year-old stegosaur (above) in Portugal with a neck that stretched over 5.9 feet (1.8 meters), a February 2009 study reported.
Photograph courtesy Octavio Mateus/Nova de Lisboa University; illustration courtesy Alam Lam/Nova de Lisboa University

source: NationalGeographic.com

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New dinosaur discovered in Portugal
Telegraph.co.uk – 15 ore fa
A new dinosaur that walked the Earth 150 million years ago has been found in Portugal. Its partial skeleton includes the only known skull remains from any European stegosaur that had a row of bony plates along its back and a spiked tail probably used
Long-Necked Stegosaur Defies Reputation Discovery Channel
New Stegosaur With Odd Long Neck Discovered National Geographic
Science News – Daily News & Analysis
e altri 16 articoli simili »

Annunci

febbraio 25, 2009 - Posted by | - R. Dinosauri, 2 Jurassic / Giurassico, An. Vertebrates, Bl - Top posts, Blogs, Europa, P - Ritrovamenti fossili, Paleontology / Paleontologia, SVPOW | , , , , , ,

3 commenti »

  1. yeah but bigfoot is still better

    Commento di Anonimo | marzo 3, 2009

  2. Noooooooooooo !!!!!!!!!!!!!!!!!!!!

    Commento di Giuseppe Buono | marzo 3, 2009

  3. huh?

    Commento di Anonimo | marzo 4, 2009


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