Most of the jaws, palate, and braincase are preserved (Figures 3
and S8). The braincase is elongate, and its lateral surface bears two
prominent openings that are separated by the I-shaped prootic
(Figure 3D and 3E). These two openings, the trigeminal foramen
and the juxtastapedial recess, house the cranial nerves associated
with the jaws and the ear, respectively.