Eutheria (/ j uː ˈ θ ɪər i ə /; from Greek εὐ-, eu-"good" or "right" and θηρίον, thēríon "beast" hence "true beasts") is one of two mammalian clades with extant members that diverged in the Early Cretaceous or perhaps the Late Jurassic.All placental mammals are eutherians. Order Dermoptera(2species) Order Chiroptera(928species) Order Carnivora(271species) Order Insectivora(429species) Order Artiodactyla(220species) Order Cetacea(78species) Order Tubulidentata(1species) Order Perissodactyla(18species) Order Hyracoidea(6species) Order Proboscidea(2species) Order Sirenia(5species) Eutheria (Placental Mammals) ‘Previous paleontological and molecular evidence has indicated that cetaceans and artiodactyls constitute a natural clade within the subclass Eutheria.’ ‘They either sequenced this fragment or obtained published sequences for a wide variety of mammals, covering almost all traditional orders of the Eutheria.’ With almost 4800 extinct and extant genera, including 1135 extant (living) genera and over 5000 extant species arrayed in 20 extant orders, placentals (extant eutherians) are the most taxonomically diverse of the three branches of extant mammals. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Spec's eutherians are much less diverse than those of our home timeline, although even in Spec, the "true beasts" make up more than two thirds of the planet's mammalian species. The Latin names of the orders of mammals given here are followed by their common names and the families that make up each order. This list should help guide you to particular groups of interest. Start studying Eutheria Overview. Examples of the various types of animals included in each family also are given. They are also some of the most familiar organisms to us, including pets such as dogs and cats, as well as many farm and work animals, such as sheep, cattle, and horses. Other orders are made up of only one sort of creature; Order Chiroptera, or example, consists of 18 families of bats. Feliforms include not only obvious felines (like lions, tigers, cheetahs, and house cats), but also hyenas, civets, and mongooses. The taxa are given in the order in which they are considered. Some functions of … Eutheria They are distinguished from non-eutherians by various features of the feet, ankles, jaws and teeth. One of the major differences between placental and non-placental eutherians is that placentals lack the epipubic bones, which are present in all other fossil and living mammals. Eutheria, mammals that carry their young in the womb until fully developed, are the most familiar of the mammalian groups - a fact that is not surprising, since this is the group to which humans belong. The placental mammals include such diverse forms as whales, elephants, shrews, and armadillos. The full classification is given in the three lists in the menu indicated by Classification 1, Classification 2, and Classification 3. Eutheria includes one of three major clades of mammals, the extant members of which are referred to as placentals. 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