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
Central Institute for Experimental Animals goal was set to assist the scientific bodies in finding animals of the highest quality. In 1979, a workshop was organized in Japan under the auspices of ICLAS and the International Cancer Research Workshop (ICREW) with representatives from the governing board of ICLAS, members of the ICLAS working party, and a number of experts from throughout the world. At that time, the planning of an ICLAS Monitoring Center System and the preparation of an International Manual on Genetic Monitoring, which had been in development for some time, was progressing well. The final proposal was later approved by the Board as