Travel back in time 125 million years with me as we visit the Cretaceous Yixian formation.

Species appearing in this episode: Cladophlebis, Cretaceonobius fossilis, Thujoxylon beipiaoense, Jeholia longchengi, Repenomamus robustus, Sciadopityoxylon liaoningense, Xenoxylon hopeiense, Xenoxylon latiporosum, Protocedroxylon shengjinbeigouense, Piceoxylon zaocishanense, and Sinosauropteryx prima.