The Triassic Explosion of Marine Reptiles
Photo: Psephoderma, modified after Ghedoghedo via Wikimedia, CC BY-SA 3.0. Last week I reported about the abrupt origin of ichthyosaurs...
Photo: Psephoderma, modified after Ghedoghedo via Wikimedia, CC BY-SA 3.0. Last week I reported about the abrupt origin of ichthyosaurs...