Dawn Of The Dinosaurs And The Carmian-Norian Transition
Monday, January 24, 2011 - 16:10
in Paleontology & Archaeology
Did dinosaurs appear and replace other animals? At least in one South American valley, there's no indication that the dinosaurs appeared and wiped out other animals, which has been the prevailing hypothesis for the origin of dinosaurs based on fossils from North America and elsewhere in the world. Dating of new dinosaur fossils and volcanic ash around them by researchers from has led them to cast doubt on the idea that dinosaurs appeared and opportunistically replaced other animals. They seem to have existed side by side and gone through similar periods of extinction. read more