Dinosaurs May Have Been Smaller Than Previously Thought

 090621195620-large1.jpg

Model dinosaur. Scientists have discovered that the original statistical model used to calculate dinosaur mass is flawed, suggesting dinosaurs have been oversized.

The largest animals ever to have walked the face of the earth may not have been as big as previously thought, reveals a paper published June 21 in the Zoological Society of London’s Journal of Zoology.

Continue reading… “Dinosaurs May Have Been Smaller Than Previously Thought”

0

Beaked, Bird-like Dinosaur Tells Story Of Finger Evolution

090617171816-large.jpg

Limusaurus

Scientists have discovered a unique beaked, plant-eating dinosaur in China. The finding, they say, demonstrates that theropod, or bird-footed, dinosaurs were more ecologically diverse in the Jurassic period than previously thought, and offers important evidence about how the three-fingered hand of birds evolved from the hand of dinosaurs.

Continue reading… “Beaked, Bird-like Dinosaur Tells Story Of Finger Evolution”

0

Sands Of Gobi Desert Yield New Species Of Nut-cracking Dinosaur

dinosaur1.jpg

Scientists first discovered psittacosaurs in the Gobi Desert in 1922

Plants or meat: That’s about all that fossils ever tell paleontologists about a dinosaur’s diet. But the skull characteristics of a new species of parrot-beaked dinosaur and its associated gizzard stones indicate that the animal fed on nuts and/or seeds. These characteristics present the first solid evidence of nut-eating in any dinosaur. Continue reading… “Sands Of Gobi Desert Yield New Species Of Nut-cracking Dinosaur”

0

Squishy Animal With 8 Arms Once Ruled The World

8-armed-animal-fossil.jpg

Photo: Dr Jim Gehling, South Australian Museum

Before dinosaurs, this strange eight-armed creature ruled the Earth:

Scientists have discovered what they believe is an eight-armed creature, which colonised a large section of the world’s oceans over 300 million years before the first dinosaurs emerged.

Continue reading… “Squishy Animal With 8 Arms Once Ruled The World”

0

Fancy Feathers Predated Flight in Dinosaur-Bird Hybrid

 dinocomp.jpg

Form can precede function, at least when it comes to mate-attracting feathers.

A part-bird, part-dinosaur described in the journal Nature this week didn’t have feathers for flying, but did possess ostentatious ornamental plumage, including four tailfeathers three times longer than its pigeon-sized body.

Continue reading… “Fancy Feathers Predated Flight in Dinosaur-Bird Hybrid”

0