WASHINGTON, Feb 25 (Reuters) - In Argentina's Patagonia region 95 million years ago, some huge dinosaurs roamed the landscape ...

The alvarezsaurs were thought to have evolved a smaller stature because of their diet of ants and termites, but a new fossil ...

Learn how the tiny dinosaur fossil from Patagonia reshapes alvarezsaur evolution and their unusual digging claws.

A nearly complete skeleton of one of the smallest dinosaurs, Alnashetri cerropoliciensis, was found in Argentina's Patagonia. This crow-sized dinosaur offers insight into the alvarezsaurs group and ...

Alnashetri is truly tiny. Weighing in around 0.7 kg (1.5 pounds), it is smaller than a chicken,’ stated University of Minnesota paleontologist Peter Makovick ...

Alnashetri cerropoliciensis’ belongs to a strange carnivorous lineage that refutes the idea of the progressive miniaturization of its group ...

For ninety million years, a two-pound skeleton lay hidden in the red sandstones of Patagonia.

When you think of dinosaurs, your first thoughts may include some of the more notorious species. In fact, of the more than 700 dinosaurs scientists have discovered, most people think of the larger ...

A 90-million-year-old fossil of Alnashetri cerropoliciensis has been called a “palaeontological Rosetta Stone” by scientists.