PLATE 53 



HIND FEET OF MERYCHIPPUS SPHENODUS, M. PANIENSIS, M. SEJUNCTUS. 



EXTERNAL AND ANTERIOR VIEWS OF PES IN THREE COPE SPECIES FROM THE PAWNEE CREEK BEDS OF NORTHEASTERN 



COLORADO. 



All figures one-half natural size. 



Compare with other species from the same beds, shown in Plate 54. 



Pawnee Creek, Col. Middle Miocene 1. Mcrychippus sphcnodus Cope, referred specimen, Am. Mus. 8251 (re- 

 versed in drawing). Associated with teeth and part of skeleton. Meta- 

 tarsus and phalanges of pes, a, anterior and, b, external view; c, anterior 

 view of ungual phalanx of fore foot. 

 2. M. paniensis Cope, referred specimen, Am. Mus. 9382. Associated with 

 skull, jaws, and large part of skeleton, a, Anterior, b, external view. 

 " " 3. M. sejunctus Cope, type, Am. Mus. 8291 (reversed in drawing). Asso- 



ciated with skull, jaws, and part of skeleton, a, Anterior, b, external 

 view. 



32S 



