Dino-not-so-soaring

June 22, 2009

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 today in the Zoological Society of London's Journal of Zoology.

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

Widely cited estimates for the mass of Apatosaurus louisae, one of the largest of the dinosaurs, may be double that of its actual mass (38 tonnes vs. 18 tonnes).

"Paleontologists have for 25 years used a published statistical model to estimate body weight of giant dinosaurs and other extraordinarily large in extinct lineages. By re-examining data in the original reference sample, we show that the is seriously flawed and that the giant dinosaurs probably were only about half as heavy as is generally believed" says Gary Packard from Colorado State University.

The new predictions have implications for numerous theories about the biology of , ranging from their energy metabolism to their food requirements and to their modes of locomotion.

Source: Wiley (news : web)

Explore further: Study of polar dinosaur migration questions whether dinosaurs were truly the first great migrators

Related Stories

Recommended for you

French teen finds 560,000 year-old tooth (Update)

July 28, 2015

A 16-year-old French volunteer archaeologist has found an adult tooth dating back around 560,000 years in southwestern France, in what researchers hailed as a "major discovery" Tuesday.

The couple who Facebooks together, stays together

July 27, 2015

Becoming "Facebook official" is a milestone in modern romance, and new research suggests that activities on the popular social networking site are connected to whether those relationships last.

3 comments

Adjust slider to filter visible comments by rank

Display comments: newest first

pseudophonist
3 / 5 (2) Jun 22, 2009
It will be interesting to see how this affects things like the T-rex running speed models and associated inferences about hunting behaviour.
earls
1 / 5 (1) Jun 22, 2009
"Dino-not-so-soaring"

lol
Adam
not rated yet Jun 23, 2009
Wish I lost weight as easily as the dinos have now done!

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.