The earliest known armored dinosaur did not just carry a few defensive plates, it bristled with spikes so extreme that its ...

The Quebrada de Santo Domingo in Argentina is a harsh environment. Situated high in the Andes, the area is nearly inhospitable with winds whipping through the mountains and temperatures plummeting.

WASHINGTON — The discovery of the oldest dinosaur embryos ever found is enabling scientists to piece together the lifetime growth of a long-necked giant that lived 190 million years ago. Years of ...

Researchers in the Andes of Argentina discovered one of the oldest known dinosaurs as a species new to science. Lucas Fiorelli (CRILAR-CONICET), Martín Hechenleitner (CRILAR-CONICET) and Léa Leuzinger ...