Dictionary > Theria

Theria

Definition
noun
A taxonomic group (subclass) comprised of metatherian and eutherian mammals
Supplement
Theria is a subgroup of Class Mammalia. It consists of metatherians (marsupials) and eutherians (true placental mammals) that give birth to live young as opposed to non-therian mammals that lay eggs.
Word origin: Greek therion (wild beast)
See also:

  • eutherian
  • metatherian

Compare:

  • Prototheria
  • Related term(s):

    • therian


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