Boyer diss 2009 1046..

(1983) descriptions are brief and contain inaccuracies and omissions. Simpson (1935:9)
misinterpreted the exposed promontorium as a bulla that “is completely ossified, but is
remarkably small and relatively little inflated.”
Thus, much of the morphology of this specimen is illustrated and described for
the first time here. This specimen could not be HRxCT-scanned because of an x-ray
opaque naturally deposited/precipitated mineral infilling the petrosals. The skull is
crushed flat and only the ventral aspect is visible (Figs. 2.15-16). The dorsal aspect is
embedded in matrix and a composite, or plaster, that has been applied, apparently in
order to stabilize the specimen. The skull is articulated with a cervical vertebral series.
Lying parallel to the vertebral series is a clavicle. Just behind this accumulation is what
appears to be part of a radius shaft.
Maxilla.— The nasals, premaxillae, and lacrimals are not visible. The maxillae
are preserved bilaterally. Left P 3 -M 3 and right M 1-3 are present, still in their alveoli. One
P 2 (probably left) is out of its alveolus and lying on the palate (Fig. 2.15). The length of
the tooth row from P 2 -M 3 is 14.00 mm (Fig. 2.15). The heavy wear on these teeth reveals
that the animal was probably senescent. Neither element preserves any sutures except
possibly the zygomatic contact on the right side. The zygomatic process of the maxilla
arises at the level of M 2 (Fig. 2.15: 53). The infraorbital foramen is visible on the right
side at the level of P 3 (Fig. 2.15: 54). Its dorsoventral depth is roughly 2.22 mm.
Zygomatic.— The right zygomatic bone is visible (Fig. 2.15) but fragmentary; no
morphology of significance is apparent.
Palatine.— Fragments of both palatines are preserved (Fig. 2.15). The posterior
end of the palatal part of the bone and the anterior bases of both pterygoid processes are
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