A rare fossil from eastern North America of a dog-sized horned dinosaur has been identified by Dr Nick Longrich. The fossil provides evidence of an east-west divide in North American dinosaur evolution.
Nov 30, 2015 in Archaeology & Fossils
Most of what we know about North American dinosaurs comes from the western half of the continent, while those of the east are something of a mystery. So little is known, in fact, that even a scrap of bone can shed light on ...
1 hour ago in Archaeology & Fossils