Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

When seen through the lens of technology, few resources are truly scarce; they’re mainly inaccessible. 

 

Peter Diamandis

The first dinosaur discovered in Spain is younger than originally thought

RATE THIS! +2
Posted in Science on 13th Mar, 2012 01:10 AM by AlexMuller

The Aragosaurus was the first sauropod dinosaur described in Spain some 25 years ago in Galve (Teruel), but its age was never clear. And now it has been discovered that it is 15 million years younger than previously thought. This would make it the only dinosaur of the Hauterivian age (between 136 and 130 million years ago) to be found in Spain.

 

"This is the only dinosaur of this period found in Spain and is also the most intact in Europe. It can be categorised amongst the well known sauropods of the Jurassic-Cretaceous transition (135 million years ago), the most abundant species during the Barremian age (116 million years ago). As this group has been studied the least, the Aragosaurus fills the gap," explains to SINC José Ignacio Canudo, lead author of the study and researcher in the University of Zaragoza's Aragosaurus-IUCA Group, which stands for the Aragon Research Institute of Environmental Sciences.

 

Its new age means that Aragosaurus fills in the transitional period between the Jurassic and Cretaceous periods, of which there is little record in the world. Canudo points out that "Aragosaurus would have therefore been a primitive ancestor of the titanosauraus sauropods that would later dominate Europe and Asia during the Late Cretaceous Period."

 

Published in Geological Magazine, thanks to this new dating the study shows that Aragosaurus, found by José Luis Sanz and his team in 1987, is the oldest of its kind and could even be a common ancestor. The researcher declares that "the group could have originated in Europe, or even in Iberia, but there is still a lot more to be found out."

 

The new finding also reveals that in the Early Cretaceous Period (135 million years ago), what we now know as the European Continent was made up of a series of large islands that could have been "the point of origin for many vertebrate groups including sauropod dinosaurs like the Basal Titanosauriform."

 

Fossil dating: An "almost" impossible mission

 

In order to situate the dinosaurs on their corresponding branch of the evolutionary tree, their remains require dating. In some cases though, this is lacking. Dating dinosaur remains can be problematic due the little information available on the age of the sediments where the fossils lie.

 

In relation to Aragosaurus ischiaticus "there are some lagoons that allude to its stratigraphic position," outlines Candudo, adding that dating "can often be complicated due to imprecision in continental scales." For this reason, the age of some dinosaur species can vary "even by tens of millions of years", assures the geologist.

 

The research group carried out their detailed geological field work to find the remains in the lower part of the Castellar Formation site in Teruel. As the lower part is "not as rich" in fossils compared to the upper part, the only Aragosaurus remains that could be dated were a pollen fossil assemblage.

 

In Canudo's opinion, specifying the age of dinosaurs is "fundamental" in determining the paleobiogeography and evolution of these beings. As the scientist concludes, "incorrect aging provides the wrong results when determining the correlation between continents."


 



Read original article » Back to category

Comments

Author: Guest
Posted: 2013-09-05
+0
K8fVFb Muchos Gracias for your article.Really looking forward to read more. Really Cool. Reply
Author: Guest
Posted: 2013-09-12
+0
kPCWaa Great blog article.Thanks Again. Will read on... Reply
Author: Guest
Posted: 2013-09-24
+0
ypNOWO Major thanks for the blog article.Much thanks again. Fantastic. Reply
Author: Guest
Posted: 2013-10-16
+0
i5xeiz Wow, great blog article. Will read on... Reply
Author: Guest
Posted: 2013-10-24
+0
GXw9Aw Thank you ever so for you blog.Thanks Again. Really Cool. Reply
Author: Guest
Posted: 2013-10-25
+0
1t0MJw I really liked your blog article.Really thank you! Much obliged. Reply
Author: Guest
Posted: 2013-10-31
+0
KOQxzE Thanks so much for the blog article.Thanks Again. Awesome. Reply
Author: Guest
Posted: 2014-02-04
+0
XAQl49 Thanks again for the blog post.Thanks Again. Reply
Author: Guest
Posted: 2015-06-11
+0
rvK6eL Wow, great article. Want more. Reply
Author: Guest
Posted: 2015-06-30
+0
f4FYX9 Thanks for sharing, this is a fantastic post. Awesome. Reply
Author: Guest
Posted: 2015-10-16
+0
a40G1h Im grateful for the blog article.Really looking forward to read more. Cool. Reply
Author: Guest
Posted: 2016-12-26
+0
Hey, good to find soonmee who agrees with me. GMTA. Reply


 

Recent headlines

  • Posted in Business on 2017-11-18 21:15:58
    Companies are realising that renewable energy is good for.....read more
    Posted in Hardware on 2017-11-18 21:07:25
    California may reach 50% renewable power goal by 2020; 10.....read more
    Posted in Hardware on 2017-11-17 18:02:34
    Tesla unveils a truck and a roadster..read more
    Posted in Hardware on 2017-11-17 17:47:38
    SpaceX expects government support for development of BFR.....read more
    Posted in Science on 2017-11-17 13:59:11
    Gene therapy infused into persons blood to correct liver.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Martian landscapes formed from sand 'levitating' on a little.....read more
    Posted by AlexMuller
    Scientists detect comets outside our solar system..read more
    Posted by AlexMuller
    Advanced artificial limbs mapped in the brain..read more
    Posted by AlexMuller
    Bacteria have a sense of touch..read more
    Posted by AlexMuller
    Recurrent brain cancer: New hope with phase 1 clinical trial.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me