252mya:Mesosaurus tenuidensArtwork by Vitor SilvaMesosaurus was among the earliest reptiles to evolv
252mya:Mesosaurus tenuidensArtwork by Vitor SilvaMesosaurus was among the earliest reptiles to evolve a fully aquatic lifestyle. It lived 299-280 million years ago, long before the Age of the Dinosaurs, when great marine reptiles dominated the oceans.—252MYA creates custom-made artwork for private collections and editorial, scientific, or educational project. -- source link