Equidae
Equidae (sometimes known as the horse family) is the taxonomic family of horses and related animals, including the extant horses, donkeys, and zebras, and many other species known only from fossils. All extant species are in the genus "Equus". Equidae belongs to the order Perissodactyla, which includes the extant tapirs and rhinoceros, and several extinct families.
Booidea
The Booidea, also known as booid snakes, are a superfamily of snakes that contains boas (family Boidae) and other closely related boa-like snakes (but not pythons, which are in a separate superfamily called Pythonoidea). As of 2017, Booidea contains 61 species, including the eponymous Neotropical "Boa constrictor", anacondas (genus "Eunectes"), and smaller tree and rainbow boas ("Corallus", "Epicrates", and "Chilabothrus") as well as several genera of booid snakes from various locations around the world: "Candoia" from New Guinea and Melanesia, sand boas ("Eryx") from northeast Africa, the Middle East, and southwestern Asia, "Charina" and "Lichanura" from North America, "Ungaliophis" and "Exiliboa" from Central America, "Acrantophis" and "Sanzinia" from Madagascar, and "Calabaria" from tropical west-central Africa.