Theria

Scientific classification
Kingdom Information
Kingdom |  Animalia
Phylum Information
Phylum |  Chordata
Class Information
Class |  Mammalia
Sub-class |  Theria
Population statistics

Theria (Greek: "wild beast") is the subclass of mammals identified by giving birth to live young without using a shelled egg. All currently living species of mammal are members of this subclass, except the platypus and echidnas.