The Brontosaurus Is Back! Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email A group of Brontosaurs, or Thunder Saurians. From The Century Illustrated Monthly Magazine, May to October 1904. ( Getty ) Produced by Kristen Meinzer Hosted by Todd Zwillich Produced by PRI and WNYC