Assertion: malleus's process | /r/HasProperty | lack of the manubrium
Facets:
Source sentences:
text: The ear ossicles of Liaoconodon differ from those of extant mammals in having at least the following features: a long anterior process of the malleus wrapping around the OMC, ossicles proportionally larger, a hinge-like malleo-incudal joint, presence of the posterodorsal process of the malleus (boss of the surangular), lack of the manubrium, the ectotympanic partly developed.