2 Unusual Species of Dinosaur Found

Illuminating a mysterious epoch in the age of dinosaurs, scientists said they had unearthed two new species in New Mexico, including a bizarre one that sprang from the same lineage as super carnivore Tyrannosaurus rex but was content to eat plants.

The dinosaurs--the sloth-like nothronychus and a small carnivore that has not yet been named--lived 90 million years ago in a swampy forest, said paleontologists Jim Kirkland and Doug Wolfe.

Both dinosaurs had bird-like characteristics and probably were covered with feathers, they said.