Yahoo isn't an authority on paleontology either:
http://news.yahoo.com/s/livescience/201 ... letheearth
Without competition for food, early meat-eating dinosaurs like Tyrannosaurus rex and Velociraptor took over, the researchers speculate.
Let's clear things up, shall we? T. rex was one of the LAST carnivorous non-avian dinosaurs. Velociraptor also lived quite late on in the cretaceous. Acceptable examples of early therapods include Dilophosaurus and Megapnosaurus, both of which lived in the early Jurassic, shortly after the mentioned extinction.
In other words, Yahoo is a bunch of morons who shouldn't be trusted on anything.