Assertion: middle ear's ossicle | /r/CapableOf | lack the region of synostosis
Facets:
Source sentences:
text: The mallei of Gerbillurus and especially Macroscelides are intermediate between freely mobile and microtype morphologies in terms of the angle of the manubrium and the relatively small head (Fig. 6 ), but these ossicles lack an orbicular apophysis and the region of synostosis between the anterior process and the tympanic bone is in both cases very narrow.