Eutheria (from Greek εὐ-, eú- 'good, right' and θηρίον, thēríon 'beast'; lit. 'true beasts'), also called Pan-Placentalia, is the clade consisting of placentals and all therian mammals that are more closely related to placentals than to marsupials.

Eutheria (or Placentalia) is the most taxonomically diverse of three branches or clades of mammals, the other two being Metatheria (or Marsupialia) and Prototheria (or Monotremata). When named by Gill in 1872, Eutheria included both marsupials and placentals.

There are over 1000 extant genera and over 4000 extant species of eutherians, ranging from shrews to whales and from aquatic cetaceans to the volant bats to the terrestrial primates. However, not all classification schemes utilize the term Eutheria.

Apr 7, 2025 · placental mammal, (infraclass Eutheria), any member of the mammalian group characterized by the presence of a placenta, a vascular organ that develops during gestation, which facilitates exchange of nutrients and wastes between the …

Eutheria(orPlacentalia)isthemosttaxonomicallydiverse of three branches or clades of mammals, the other two being Metatheria (or Marsupialia) and Prototheria (or Monotremata). When named by Gill in 1872, Eutheria included both marsupials and placentals. It was Huxley in 1880 who recognised Eutheria basically as used today to include only placentals.

Eutheria is the taxonomical name for the main group of living mammals. [2] This taxon contains the placental mammals, of which humans are one species. Eutheria was introduced by Thomas Henry Huxley in 1880. Members of Eutheria are now found on all continents and in all oceans. The terms 'Eutheria and 'Placental' do not mean quite the same thing.

Jul 10, 2024 · Placental mammals, also known as Eutheria, are the most diverse and widespread group of mammals on Earth. The defining feature of placental mammals is the presence of a placenta, a specialized organ that forms during pregnancy within the mother's uterus.

Placental mammal, (infraclass Eutheria), any member of the mammalian group characterized by the presence of a placenta, which facilitates exchange of nutrients and wastes between the blood of the mother and that of the fetus. The placentals include all living mammals except marsupials and monotremes.

May 21, 2018 · Eutheria (class Mammalia, subclass Theria) The infraclass that includes all of the placental mammals, and which probably arose during the Cretaceous. The embryo is retained in the uterus, nourished by means of an allantoic placenta, …

Jan 7, 2017 · Eutheria. It is the taxonomical name for the main group of living mammals , It contains the placental mammals , of which humans are one species, It was introduced by Thomas Henry Huxley in 1880 , Members of Eutheria are now found on all continents and in all oceans .