Nimravides the similarities between them at first glance, based on autapomorphies in the skeleton, the two animals are too different to be classified as species of the same genus, and thus, "Nimravides" remains separate as its own genus within the Homotherini. Nimravides Nimravides is a genus of extinct saber-toothed cats that lived in North America during the middle and late Miocene, between 13.6 and 4.9 Ma. Despite its scientific name, "Nimravides" does not belong to the Nimravidae, but is a true cat, belonging to the family Felidae. "Nimravides catacopsis", one of the largest and latest species, was quite large, measuring at
William Procter Prize for Scientific Achievement a principal event at the Sigma Xi Annual Meeting, where the recipient delivers the Procter Prize Address. The Prize is named for William Procter, an heir of one of the founders of the Procter and Gamble Company. He was active in Sigma Xi and its affiliated organization, the Research Society of America (RESA), and endowed the award that bears his name in 1950, the year before he died. William Procter Prize for Scientific Achievement The William Procter Prize for Scientific Achievement is an award given by Sigma Xi, a scientific-research honor society. The Procter Prize is presented annually to a