Skunk Family Tree (Mephitidae) Weasel Family Tree (Mustelidae) Red Panda (Ailuridae) Musteloidea. The Musteloidea consists of the families Ailuridae (red pandas), Mustelidae (mustelids: weasels, otters, martens, and badgers), Procyonidae (procyonids: raccoons, coatis, kinkajous, olingos, olinguitos, ringtails and cacomistles), and Mephitidae (skunks).
In North America, ursoids and musteloids first appear in the Chadronian[citation needed] (late Eocene). In Europe, ursoids and musteloids first appear in the early Oligocene immediately following the Grande Coupure.