Noun
The highest class of Vertebrata. The young are nourished for a time by milk, or an analogous fluid, secreted by the mammary glands of the mother.
Source: Webster's dictionaryA taxonomic review of the genus Mustela (Mammalia, Carnivora). Source: Internet
It is just a section of the clade Amniota : the section that is left after the Mammalia and Aves have been hived off. Source: Internet
The word "mammal" is modern, from the scientific name Mammalia, coined by Carl Linnaeus in 1758, derived from the Latin mamma ("teat, pap"). Source: Internet
Usage of 17 specific names based on wild species which are pre-dated by or contemporary with those based on domestic animals (Lepidoptera, Osteichthyes, Mammalia): conserved. Source: Internet
Mammalia and Aves are, in fact, subclades within the grand clade of the Amniota. Source: Internet
Using again the example of Linnaean taxonomy, it can be seen that an object that is part of the level Mammalia "is a" member of the level Animalia; more specifically, a human "is a" primate, a primate "is a" mammal, and so on. Source: Internet