Everything in that sentence is stated somewhere else in the realtionships section more clearly, so I'm deleting it. It means that whales(Cetacea) are considered related to the even toed ungulates(Artiodactyla), and hyraxes(Hyracoidea) are considered related to the elephants(Proboscidea) and sea cows(Sirenia). Aardvarks(Tubulidentata) are no longer considered to be related to the anteaters, armadillos, and sloths(Xenarthra). anonymous