Tuesday, January 19, 2016

Notocolossus gonzalezparejasi, A Giant New Sauropod From Argentina

Argentina and the evolution of the sauropod hind foot. 2016. Nature.

Notocolossus gonzalezparejasi has a humerus 1.76 m (5 ft 9 in) in length, and an estimated mass of 40,000–60,000 kg. It is one of the largest dinosaurs, and indeed, one of the largest land animals, yet known to science.

One of the two known Notocolossus specimens preserves the hind foot in its entirety, providing the first complete look at this important part of the skeleton in a super-massive dinosaur. The Notocolossus hind foot shows distinctive features not found in any other sauropod that appear to constitute adaptations for supporting extremely great weight. PR

Congrats to Matt Lamanna and his colleagues on this great new paper!