The evidence was found in an unusual pebbly sandstone, Tava, encapsulated within the granite that formed Colorado’s Pikes Peak around 700 million years ago. Read from CU Boulder experts Rebecca Flowers and Liam Courtney-Davies and Colorado College’s Christine Siddoway on The Conversation.

  The Conversation

The Conversation is an independent, nonprofit publisher of commentary and analysis, authored by academics and edited by journalists for the general public. On a mission “to promote truthful information and strengthen journalism by unlocking the rich diversity of academic research for audiences across America,” they publish short articles by academics on timely topics related to their research. CU Boulder provides funding as a member of The Conversation U.S.