“I've Never Seen Anything Like It Before” – Unusual 550 Million Year Old Fossil Solves Paleontological Paradox - SciTechDaily

The research offers new insights into the early evolution of animals. Researchers led by Shuhai Xiao at Virginia Tech have discovered a 550 million-year-old sea sponge fossil, shedding light on a 160 million-year gap in the fossil record. This fossil, which s…