Allotheria

left|thumb|Skull of Xianshou, a [[euharamiyidan]] Allotheria (from Ancient Greek αλλός (allós), meaning "other", and θηρίον (theríon), meaning "beast") is an extinct clade of theriiform mammals known from the Mesozoic and early Cenozoic. Shared characteristics of the group are the presence of lower molariform teeth equipped with longitudinal rows of cusps and enlarged incisors. Typically, the canine teeth are also lost. Allotheria includes Multituberculata, Gondwanatheria (which may be part of Multituberculata, as the sister group to Cimolodonta), and probably Haramiyida, (sometimes only inclu