Maotherium sinensis (Rougier et al., 2003; NGMC 97415; Early Cretaceous, 125 mya; was originally considered a symmetrodont mammal but nests here at the base of the Glires. Another species M. asiaticus is shown below.
Derived from a sister to Monodelphis, tiny Maotherium has a short tail without chevrons. The ilium is long and at least four sacrals were present, indicating both a strong hind limb and a reinforced sacrum, both possible leaping structures. Both humeri are broken at mid shaft in the fossil. No separate coronoid process is present on the dentary.