- News Home
17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
- About Us
ScienceShot: Crocodile-Snouted Dinosaur Discovered Down Under
14 June 2011 7:01 pm
More than 100 million years ago, Australia was home to a unique blend of predatory dinosaurs. The latest to be added to the mix—thanks to a single neck vertebra (pictured above) that was found in Victoria and described today in Biology Letters—is a bizarre class of crocodile-snouted carnivores called spinosaurs. These peculiar dinosaurs have previously been found in South America, Europe, Africa, and Asia, and the Australian fossil closely resembles a spinosaur known as Baryonyx from England. Combined with other fragmentary skeletons attributed to tyrannosaurs, raptors, and allosaurs, this as-yet-unnamed spinosaur may help paleontologists figure out when different dinosaur lineages arrived in Australia and, consequently, when and how the continent split from other land masses 80 million years ago. Prior to that time, all the southern continents were merged in a supercontinent known as Gondwana, and the new find—combined with other dino discoveries that indicate that Australian dinosaurs more closely resemble their counterparts in South America rather than Africa—suggests that Africa may have been the first to split off.
See more ScienceShots.