628 



TITANOTHERES OF ANCIENT WYOMING, DAKOTA, AND NEBRASKA 



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Figure 546. — Bones of forearm of Palaeosyops 



A, Palaeosyops robustus. Am. Mus. 1580; Bridger C or D; left humerus, front and distal views. B, Palaeosyops leidyi (type), Am. Mus. 1544; Bridger 

 C or D; right humerus and forearm; outer side view, with section of radius (r) and ulna (u). C, Right radius of same, front view. D, Palaeo- 

 syops sp., Am. Mus. 12386; Bridger C; left humerus, front and distal views. Ei, Palaeosyops major, Am. Mus. 13116; Bridger B 3; left radius 

 and ulna, front view. Ea, The same, outer side view. F, Palaeosyops robustus, Am. Mus. 1580; Bridger C or D; left ulna, front view of proximal 

 end. G, Palaeosyops robustus, Princeton Mus. 10360; Bridger Basin; left radius and ulna, with sections. H, Palaeosyops robustus, Am. Mus. 

 1580; Bridger C or D; left radius. All one-fourth natural size. 



