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The two dinosaurs -- the weird, sloth-like nychus and a small carnivore from the coelurosaur family hat has not yet been named -- lived 90 million years ago swampy, forest similar to the modern day bayous of na, according to paleontologists who announced the discovery. Both dinosaurs had bird-like characteristics and both probably were covered with feathers, the scientists said. They were found about a half mile apart near New Mexicos border with Arizona in an area dubbed the Zuni Basin. At that time -- the middle of the Cretaceous period of the Mesozoic era -- Earth was in the throes of extreme global warming that melted the polar ice caps, raised ocean levels 1,000 feet higher than they are currently and reduced the amount of dry land on the planet. Almost no dinosaur fossils have been found from America.