Theriiformes

Theriiformes; Temporal range: Late Triassic - Holocene, 220–0 Ma PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Subclass:	Theriiformes; McKenna & Bell, 1997
Infraclasses
	Holotheria; †Allotheria;

Theriiformes is a subclass of mammals. The term was coined in 1997 by McKenna & Bell in their classification of mammals.[1] In the strict sense, it is defined as all mammals more closely related to therians than to monotremes.

Mammaliaformes

†Morganucodontidae

Mammalia

Yinotheria→Monotremata

Theriiformes

†Allotheria→†Multituberculata

Holotheria

†Kuehneotheria

Trechnotheria

†Zhangheotherium †("Symmetrodonta")

Cladotheria

†Dryolestoidea

Zatheria

†Peramura

Tribosphenida

†Aegialodontia

Theria

	Metatheria→Marsupialia

	Eutheria→Placentalia

References

McKenna, Malcolm; Bell, Susan (March 15, 1997). Classification of Mammals Above the species Level (Hardback)|format= requires |url= (help) (first ed.). New York City: Columbia University Press. ISBN 978-0231110129.

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[McBell-1] McKenna, Malcolm; Bell, Susan (March 15, 1997). Classification of Mammals Above the species Level (Hardback)|format= requires |url= (help) (first ed.). New York City: Columbia University Press. ISBN 978-0231110129.