PLATE 50. 



FEMUR AND TIBIA IN MERYCHIPPUS SEJUNCTUS, M. PANIENSIS, M. CAMPESTRIS, M. EOHIPPARION. 

 FOUR SPECIES FROM THE PAWNEE CREEK BEDS OF NORTHEASTERN COLORADO. 



All figures one-half natural size. 



(Upper) Femora, (lower) tibia?, anterior views. 



Middle Miocene 1, 5. Mcrychippus sejunctus Cope, referred specimen, Am. Mus. 9389. Asso- 

 ciated with hind limb and foot. 

 " " 2,6. M. paniensis Cope, referred specimen, Am. Mus. 9382. (Femur reversed 



in drawing). Associated with skull, jaws and greater part of skeleton. 

 " " 3,7. M. campestris Gidley, type, Am. Mus. 9096 (reversed in drawing). Asso- 



ciated with upper and lower jaws and greater part of the skeleton. 

 " " 4, 8. M. eohipparion Osborn, type, Am. Mus. 9402 (tibia reversed in draw- 



ing). Associated with lower jaws and greater part of skeleton. 



Pawnee Creek, Col. 



u a a 



u a u 



a a u 



322 



