Living Beings

    Living Beings / Classification

    Taxonomy explorer

    Life → Domain → Kingdom → Phylum → Class → Order → Family → Genus → Species. Explore the principal ranks; intermediate clades remain in Advanced classification.

    “Eutheria” is a clade between the main ranks. Inspect its full lineage.

    Explore the tree

    NCBI Taxonomy · November 5, 2026. Missing ranks leave empty columns. Animalia is the recorded synonym of Metazoa; green plants use Viridiplantae. Full source ancestry is available in Advanced classification.

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    Tree of life

    Classification list

    Select a node or use the plus sign to open a branch.

    Selected taxon

    Mammalia

    Class

    mammals

    1. LifeLife
    2. DomainEukaryota
    3. KingdomAnimalia
    4. PhylumChordata
    5. ClassMammalia
    Advanced classification

    Complete source lineage, including intermediate ranks. The standard view uses Life and the eight principal ranks.

    1. cellular organisms cellular root
    2. Eukaryota domain
    3. Opisthokonta clade
    4. Metazoa kingdom
    5. Eumetazoa clade
    6. Bilateria clade
    7. Deuterostomia clade
    8. Chordata phylum
    9. Craniata subphylum
    10. Vertebrata clade
    11. Gnathostomata clade
    12. Teleostomi clade
    13. Euteleostomi clade
    14. Sarcopterygii superclass
    15. Dipnotetrapodomorpha clade
    16. Tetrapoda clade
    17. Amniota clade
    18. Mammalia class

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