592 



TITANOTHEKES OF ANCIENT WYOMING, DAKOTA, AND NEBRASKA 



tb.rn/j 



Figure 489. — Forearm and man us of Lambdotherium popoagicum 



Am. Mus. 4880, Wind River Basin, Wyo., Wind River formation, level B. Incom- 

 plete left forearm and manus. The length of the radius and of the metacarpals 

 is conjectural. Ai, Front view; Aj, outer side view of forearm. One-half natural 

 size. 





Figure 488. — Fore iimb of Lambdotherium popoagicum 



Am. Mus. 4880, Wind River Basin, Wyo., Wind River formation, level B. Incom- 

 plete forearm, external view. The length of the elements is conjectural. One- 

 half natural size. 



Figure 490. — Left manus of Lambdotherium 



Eotitanops 



A, Lambdotherium (Am. Mus. 4880); B, Eotitanops (Am. Mus, 296), showing the 

 ancestral type of titanothere. The length of the metacarpals in Lambdotherium 

 is conjectural. One-half natural size. 



