陕西府谷晚中新世巨鬣狗(Dinocrocuta gigantea)(食肉目：鬣狗科)颅基部形态研究

熊武阳

Basicranial morphology of Late Miocene Dinocrocuta gigantea (Carnivora: Hyaenidae) from Fugu, Shaanxi

XIONG Wu-Yang

Fig. 6 Photograph of the right bulla of Dinocrocuta gigantea (IVPP V 15649) in oblique ventral view showing structures around the medial and lateral osseous external acoustic meatus Abbreviations: ct. crista tympanica; pcl. lateral parameatal crest; pcm. medial parameatal crest;rdg. the ridge raised along the caudal end of the borderline between the lateral coarse part and the medial smooth part on the surface of bulla; sep. anterior margin of the septum that abuts the promontorium in front; th. exit for the tympanohyal in the hyoid fossa. Other abbreviations see Figs. 2, 5. Not scaled