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Placental mammals (infraclass Placentalia / p l æ s ə n ˈ t eɪ l i ə /) are one of the three extant subdivisions of the class Mammalia, the other two being Monotremata and Marsupialia. Placentalia contains the vast majority of extant mammals, which are partly distinguished from monotremes and marsupials in that the fetus is carried in the ...
The class Mammalia is divided into two subclasses based on reproductive techniques: egg-laying mammals (yinotherians or monotremes - see also Australosphenida), and mammals which give live birth ().
The class Mammalia is divided into two subclasses based on reproductive techniques: monotremes, which lay eggs, and therians, mammals which give live birth, which has two infraclasses: marsupials/metatherians and placentals/eutherians.
Exafroplacentalia or Notolegia is a clade of placental mammals proposed in 2001 on the basis of molecular research. [1] [2] [3]Exafroplacentalia places Xenarthra as a sister group to the Boreoeutheria (comprising Laurasiatheria and Euarchontoglires), [4] thus making Afrotheria a primitive group of placental mammals (the group name roughly means "those which are not African placentals").
Articles relating to the Placentalia, one of the three extant subdivisions of the class of animals Mammalia; the other two are Monotremata and Marsupialia.The placentals are partly distinguished from other mammals in that the fetus is carried in the uterus of its mother to a relatively late stage of development.
Boreoeutheria (/ b oʊ ˌ r iː oʊ j uː ˈ θ ɛr i ə /, "northern true beasts") is a magnorder of placental mammals that groups together superorders Euarchontoglires and Laurasiatheria.
From ancient history to the modern day, the clitoris has been discredited, dismissed and deleted -- and women's pleasure has often been left out of the conversation entirely. Now, an underground art movement led by artist Sophia Wallace is emerging across the globe to challenge the lies, question the myths and rewrite the rules around sex and the female body.
Epitherians comprise all the placental mammals except the Xenarthra.They are primarily characterized by having a stirrup-shaped stapes in the middle ear, which allows for passage of a blood vessel.