Join Professor Gabriela Mangano, a distinguished lecturer with the Association for Women Geoscientists, as she discusses some of her findings on very early Cambrian faunas and the trace-fossil record of the Cambrian explosion. Mangano will explain the geoscience of collecting trace-fossil evidence and show how ancient organisms moved around in their habitat over 500 million years ago. This free lecture will be held at the CU Museum of Natural History on Nov. 30 at 7 p.m. in conjunction with the Steps in Stone, Walking through Time exhibit.