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EOCENE AND OLIGOCENE TITANOTHERES OF MONGOLIA 



Figure 782.— Type female cranium and jaws of Prolitanoiherium grangeri Osborn (Am. Mus. 20103), Irdin Manha 



formation, lialf a mile south of the Kalgau-Urga telegraph line. Revised drawing 

 A, Right lateral view of skull and jaws; A,, superior view of skuU; A2, palatal view of skuU. All one-sixth natural size. Observe especially the concave 



depression surrounding the anterior border of the posterior nares; also the two concave sphenoidal pits in the basal axes of the cranium between 



the two postglenoid processes. 



