Mammalia (class)
Esquema
Jerarquía
Eukaryota (domain) > Animalia (kingdom) > Chordata (phylum) > Vertebrata (subphylum)
Descripción
Large and varied class of vertebrate animals characterized by being warm-blooded, having mammary glands that secrete milk to feed the young, bearing live young (with few exceptins), hair (although it has largely disappeared in some adult animals, such as whales), a lower jaw that is hinged directly to the skull instead of through a separate bone (the quadrate) as in all other vertebrates, three tiny bones that transmit sound waves across the middle ear, a muscular diaphragm separating the heart and the lungs from the abdominal cavity, a left aortic arch, and mature red blood cells lacking a nucleus.
Subcategorías
- <mammals by sex or age>
- Afrosoricida (order)
- Artiodactyla (order)
- Carnivora (order)
- Cetacea (order)
- Chiroptera (order)
- Cingulata (order)
- Dasyuromorphia (order)
- Dermoptera (order)
- Didelphimorphia (order)
- Diprotodontia (order)
- Edentata (former order)
- Erinaceomorpha (order)
- Eutheria (subclass)
- Hyracoidea (order)
- Lagomorpha (order)
- Macroscelidea (order)
- Metatheria (subclass)
- Microbiotheria (order)
- Monotremata (subclass)
- Notoryctemorphia (order)
- Paucituberculata (order)
- Peramelemorphia (order)
- Perissodactyla (order)
- Pholidota (order)
- Pilosa (order)
- Placentalia (subclass)
- Platypoda (order)
- Primates (order)
- Proboscidea (order)
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URI original del concepto
Otros términos
- mammals [en]
- mammal [en]