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Taxa

Mammalia

Class

Warm-blooded vertebrates defined by mammary glands that produce milk to feed their young, hair or fur, and (in nearly every living species) giving birth to live young rather than laying eggs. Mammalia ranges in size from bumblebee-sized bats to the blue whale, the largest animal ever known to have lived.

Facts
Taxonomic Rank
Class 2
Scientific Name
Mammalia 2
Member Count Band
Over 1000 Species 3
Era First Appeared
Triassic 4
Disputed
Member Species/Taxa Count
6640 2
Approximate described-species (or, for a genus, described-taxon) count; continually revised as species are newly described, reclassified or synonymized.
Classification
Living or Extinct
Yes 1
Connections

Child Taxon Of

Chordata, Taxa
Source Catalogue of Life

Long-Form Articles

Mammalia, the jaw bones that became an ear, Articles

Parent Taxon Of

Artiodactyla, Taxa
Source Catalogue of Life
Carnivora, Taxa
Source Catalogue of Life
Cetacea, Taxa
Source Catalogue of Life
Chiroptera, Taxa
Source Catalogue of Life
Cingulata, Taxa
Source Catalogue of Life
Diprotodontia, Taxa
Source Catalogue of Life
Eulipotyphla, Taxa
Source Catalogue of Life
Greater Bilby, Species
Source Catalogue of Life
Lagomorpha, Taxa
Source Catalogue of Life
Monotremata, Taxa
Source Catalogue of Life
Numbat, Species
Source Catalogue of Life
Perissodactyla, Taxa
Source Catalogue of Life
Pilosa, Taxa
Source Catalogue of Life
Primates, Taxa
Source Catalogue of Life
Proboscidea, Taxa
Source Catalogue of Life
Rodentia, Taxa
Source Catalogue of Life
Sirenia, Taxa
Source Catalogue of Life
Tasmanian Devil, Species
Source Catalogue of Life
Two-toed Sloth (Choloepus), Species
Source Choloepus (Wikipedia)
In the Other Atlases

Found In

Africa

Also in Geography Atlas: where this subject is found.

Source Animal Diversity Web: MammaliaGeographic Range: "Mammals can be found on all continents, in all o"
Quote, Geographic Range: "Mammals can be found on all continents, in all o"
Mammals can be found on all continents, in all oceans, and on many oceanic islands of the world.
Antarctica

Also in Geography Atlas: where this subject is found.

Source Animal Diversity Web: MammaliaGeographic Range: "Mammals can be found on all continents, in all o"
Quote, Geographic Range: "Mammals can be found on all continents, in all o"
Mammals can be found on all continents, in all oceans, and on many oceanic islands of the world.
Asia

Also in Geography Atlas: where this subject is found.

Source Animal Diversity Web: MammaliaGeographic Range: "Mammals can be found on all continents, in all o"
Quote, Geographic Range: "Mammals can be found on all continents, in all o"
Mammals can be found on all continents, in all oceans, and on many oceanic islands of the world.
Australia

Also in Geography Atlas: where this subject is found.

Source Animal Diversity Web: MammaliaGeographic Range: "Mammals can be found on all continents, in all o"
Quote, Geographic Range: "Mammals can be found on all continents, in all o"
Mammals can be found on all continents, in all oceans, and on many oceanic islands of the world.
Europe

Also in Geography Atlas: where this subject is found.

Source Animal Diversity Web: MammaliaGeographic Range: "Mammals can be found on all continents, in all o"
Quote, Geographic Range: "Mammals can be found on all continents, in all o"
Mammals can be found on all continents, in all oceans, and on many oceanic islands of the world.
North America

Also in Geography Atlas: where this subject is found.

Source Animal Diversity Web: MammaliaGeographic Range: "Mammals can be found on all continents, in all o"
Quote, Geographic Range: "Mammals can be found on all continents, in all o"
Mammals can be found on all continents, in all oceans, and on many oceanic islands of the world.
South America

Also in Geography Atlas: where this subject is found.

Source Animal Diversity Web: MammaliaGeographic Range: "Mammals can be found on all continents, in all o"
Quote, Geographic Range: "Mammals can be found on all continents, in all o"
Mammals can be found on all continents, in all oceans, and on many oceanic islands of the world.
Sources
1. Mammalia (Wikipedia)
Around 6,640 extant species of mammals have been describedView the Source
2. Catalogue of Life
Species 2000 & ITIS Catalogue of LifeView the Source
3. Catalogue of Life (ChecklistBank): Taxon metrics for Mammalia
Catalogue of Life (ChecklistBank)Taxon metrics, speciesExtantCount
Quote, Taxon metrics, speciesExtantCount
"speciesExtantCount": 6368
View the Source
4. Paleobiology Database: Taxon record for Mammalia
Paleobiology DatabaseTaxon record, first appearance (firstapp_max_ma, early_interval)
Quote, Taxon record, first appearance (firstapp_max_ma, early_interval)
"taxon_name": "Mammalia" ... "firstapp_max_ma": 239.48 ... "early_interval": "Ladinian"
View the Source
Wikidata: Mammalia
Wikidata Q7377, class allow-list match (w-wdresolver-0926)View the Source
Mammal (Wikipedia)
In Group: Vertebrate Classes, Lead
Quote, In Group: Vertebrate Classes, Lead
A mammal (from Latin mamma 'breast') is a vertebrate animal of the class Mammalia ().
View the Source
Choloepus (Wikipedia)
Parent Taxon Of: Two-toed Sloth (Choloepus), Lead
Quote, Parent Taxon Of: Two-toed Sloth (Choloepus), Lead
Choloepus is a genus of xenarthran mammals from Central and South America within the monotypic family Choloepodidae, consisting of two-toed sloths, sometimes also called two-fingered sloths.
View the Source
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