Tiny teeth are new mouse species, a rare 'living fossil'
Tuesday, May 24, 2011 - 07:01
in Paleontology & Archaeology
(PhysOrg.com) -- Tiny fossil teeth discovered in Inner Mongolia are a new species of birch mouse, indicating that ancestors of the small rodent are much older than previously reported, according to paleontologist Yuri Kimura, Southern Methodist University in Dallas.