Skeptic Project

http://www.sciencedaily.com/releases/2011/08/110824131535.htm

ScienceDaily (Aug. 24, 2011) -- A remarkably well-preserved fossil discovered in northeast China provides new information about the earliest ancestors of most of today's mammal species -- the placental mammals. According to a paper published August 25 in the journal Nature, this fossil represents a new milestone in mammal evolution that was reached 35 million years earlier than previously thought, filling an important gap in the fossil record and helping to calibrate modern, DNA-based methods of dating the evolution.