are a clade
that has been proposed based on DNA
analysis. Afrotheria are believed to have originated in Africa
at a time when the continent was isolated from other continents. Their only externally visible common characteristic is the movable snout. The clades contained in Afrotheria are:
Some Afrotherian clades are analogous
to clades of mammals outside of Afrotheria; for example, Sirenia to whales, tenrecs to Insectivora
, Paenungulata to other ungulates, aardvarks to anteaters.