dinosaurs walked Earth '243 million years ago'

The creature roamed Africa about 10 million years before more familiar
dinosaurs like the small, swift footed Eoraptor and Herrerasaurus that date
back to about 230 million years ago, a period known geologically as the
Triassic.


The discovery, described in the Royal Society journal Biology Letters, means
[...]
Source:
http://www.ezonearticle.com/2012/12/06/dinosaurs-walked-earth-243-million-years-ago/