. Leopardus forms an evolutionary lineage that genetically diverged between and . It crossed the Isthmus of Panama probably during the Great American Biotic Interchange in the late Pliocene. Leopardus vorohuensis is an extinct species of the genus, of which fossils were found in the Argentinian Vorohué Formation dated to the early Pleistocene; its supraorbital foramen and shape of teeth resemble those of the pampas cat. Within the genus, three distinct clades were identified: one comprising the ocelot and the margay, a second the Andean mountain cat and Pampas cat, and the third the kodkod, oncilla and Geoffroy's cat. The following cladogram shows estimated divergence times in million years ago (mya). References External links Mammal genera Extant Pleistocene first appearances Mammals of Central America Mammals of South America Mammals of North America Mammals described in 1842 Taxa named by John Edward Gray Felines