Wednesday, April 18, 2012

Orders of Living Mammals

The sixteen orders of living placental mammals are: 1) Artiodactyla (even-toed), which comprises even-toed hoofed animals, such as reindeer, camels, giraffes, cattle, sheep, pigs, hippopotamuses; 2) Carnivora (meat-eaters), which include bears, cats (felines), racoons, skunks, seals, otters, weasel; 3) Cetacea: whales, dolphin, porpoises; 4) Chiroptera: bats; 5) Dermoptera: flying lemurs; 6) Edentata (toothless): armadillos, sloths, and anteaters; 7) Primates: tree shrews, lemurs, monkeys, apes, and men 8) Hyracoidea: hyrax; 9) Insectivoras: moles; 10) Lagomorpha: rabbits, pikas; 11) Perissodactyla: odd-toed hoofed animals, such as horses, rhinoceroses, tapirs; 12) Pholidota (covered with scales): pangolins; 13) Proboscidea: elephants; 14) Rodentia: rats, mice, squirrels, porcupines, beavers, capybara; 15) Sirenia: sea cows or manatees; 16) Tubulidentata: aardvarks.

By far the most plentiful of living species of placental mammals are those among the order of Rodentia.