Shuotheriidae
Shuotheriidae
Extinct family of mammaliaforms
Shuotheriidae is a small family of Jurassic mammaliaforms whose remains are found in China, England and possibly Russia. They have been proposed to be close relatives of Australosphenida (which often controversially includes monotremes), together forming the clade Yinotheria. However, some studies suggest shuotheres are closer to therians than to monotremes,[2][3][4] or that australosphenidans and therians are more closely related to each other than either are to shuotheres.[5]