Allotheria

Allotheria Temporal range: Jurassic – Oligocene
Skull of Ptilodus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Superorder:	Allotheria
Orders
†Gondwanatheria (uncertain) †Haramiyida †Multituberculata †Triconodonta †Volaticotheria

Allotheria is an exinct subclass or superorder of mammals. It is a relative of the prototheria and theria.

The allotheres was a branch of successful Mesozoic mammals. The most important characteristic was the presence of lower molariform teeth equipped with two longitudinal rows of cusps.

Allotheres also had a narrow pelvis, indicating that they gave birth to tiny helpless young like marsupials do.