Theria

Therians Temporal range: Late Jurassic – Holocene, 160–0 Ma PreЄ Є O S D C P T J K Pg N
Scientific classification
Kinrick:	Animalia
Phylum:	Chordata
Cless:	Mammalia
Clade:	Tribosphenida
Subcless:	Theria
Infraclasses
Eutheria Metatheria

Theria (/ˈθɪəriə/; Greek: θηρίον, wild beast) is a subclass o mammals^[1] that gie birth tae live young wioot uisin a shelled egg, consistin o the eutherians (includin the placental mammals) an the metatherians (includin the marsupials). The anly omittit extant mammal group is the egg-layin monotremes.

1. ↑ Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. "Subclass Theria". Animal Diversity Web.CS1 maint: multiple names: authors leet (link)