Join us for this series of scientific seminars on current research at Carnegie Museum of Natural History! Hear Carnegie scientists and invited researchers discuss their latest findings on a wide variety of science topics. For more information about the Science Seminars, contact John Wible at WibleJ@carnegiemnh.org. March's topic: A Mesozoic Mammal Lived in South America 16 Million Years Ago: the Mystery of the Grave Robber Mammal Solved Lecturer: John Wible, PhD ... Curator of Mammals, Carnegie Museum of Natural History Location: Earth Theater, First Floor Rear Free with museum admission; no registration required Since 1891, the enigmatic mammal Necrolestes patagonensis has been shuffled between the therian lineages of placentals and marsupials. New discoveries in Argentina reveal that Necrolestes is a survivor of Dryolestoidea, an extinct lineage leading to both marsupials and placentals. Assignment of Necrolestes to Dryolestoidea makes them the longest lived mammalian clade at some 150 million years. John Wible studies the anatomy and evolutionary relationships of recent and extinct mammals at Carnegie Museum of Natural History. He is editor-in-chief of the Journal of Mammalian Evolution and co-editor of Annals of Carnegie Museum. Free with museum admission