Join the Unexplained Mysteries community today! It's free and setting up an account only takes a moment.
- Sign In or Create Account -
Sign in to follow this  
Followers 0
Ravinar

New birdlike dino adds to debate

10 posts in this topic

[attachmentid=25923]

Nicholas Bakalar

for National Geographic News

October 18, 2005

Using rock saws and a chisel, paleontologists working in Argentina's Rio Negro province have extracted the nearly complete skeleton of a rooster-size dinosaur.

The skeleton, from a group known as dromaesaurs, is about 90 million years old. Its presence in South America demonstrates that these birdlike dinosaurs probably arose much earlier than previously believed, according to the scientists who discovered the fossil. What's more, the structure of the creature indicates it had feathers but did not fly, suggesting that the species might be a "missing link" in determining the origins of flight.

Until now dromaesaurs have been found only in the Northern Hemisphere. Paleontologists had assumed that the species arose after Pangea, the Earth's original landmass, separated into Laurasia to the north and Gondwana to the south.

But the new discovery means that dromaesaurs must have appeared before the landmasses separated, about 150 million years ago.

The recently unearthed fossil, probably that of an adult animal, is in excellent condition. Only a few bones from other partial discoveries were needed to complete a fully articulated skeleton.

All together, four separate Buitreraptor fossils have now been found in the same region. But the latest is the most complete, what paleontologists call the holotype, or definitive example of a species.

sorc...http://news.nationalgeographic.com/news/2005/10/1018_051018_feathered_dino.html

post-14517-1148329483.jpg

Share this post


Link to post
Share on other sites

Sounds like a type of microraptor to me...

Share this post


Link to post
Share on other sites

I'm with frogfish!

Share this post


Link to post
Share on other sites

The link to his source: news.nationalgeographic.com

The newly discovered animal is closely related to Velociraptor mongoliensis, the clever, fast-running predatory dinosaurs made famous in the movie Jurassic Park.

The dromaesaur had a long, beak-like snout; small widely spaced teeth; and a long tail. The odd proportions of its skull may have been an adaptation for hunting small burrowing mammals and reptiles, whose skeletons have been found near the remains of Buitreraptor.

Share this post


Link to post
Share on other sites

Could be a microraptor still...

Share this post


Link to post
Share on other sites

Amazing picture. Looks more like a crane than a dinosaur!!

Share this post


Link to post
Share on other sites

Evolution is amazing, eh?

Share this post


Link to post
Share on other sites

Interesting. :w00t:

Share this post


Link to post
Share on other sites

Hesperonis was another water-bird...

user posted image

Looks more like a gannet or booby to me...

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0

  • Recently Browsing   0 members

    No registered users viewing this page.