Theria

Theria Temporal range: Early Cretaceous–Recent PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Clade:	Tribosphenida
Subclass:	Theria Parker & Haswell, 1897[1]
Subgroups
Clade: Eutheria Clade: Metatheria Genus: †Patagomaia Genus: †Spelaeomolitor Incertae sedis: Genus: †Tingamarra

Theria (/ˈθɪəriə/ or /ˈθɛriə/; from Ancient Greek θηρίον (thēríon) 'wild beast') is a subclass of mammals^[2] amongst the Theriiformes. Theria includes the eutherians (including the placental mammals) and the metatherians (including the marsupials) but excludes the egg-laying monotremes and various extinct mammals evolving prior to the common ancestor of placentals and marsupials.