NO. 3 



GRAND CANYON FOSSIL FOOTPRINTS — GILMORE 



^7 



median toes subequal in length, lateral toes slightly shorter. The sole 

 longer than wide, practically the same length as the toes, obtusely 

 rounded behind. Forefoot: Length about 40 mm., width across palm 



Fig. T,s.—Ornithoides ? adamsi Matthew. Type. Diagram of 

 trackway from Coal Measures, Joggins, Nova Scotia. Natural size. 

 (.\fter Matthew.) 



about 18 mm. In most of the imprints three toes are registered, but 

 the hindfoot, in the greater number of instances, was partially placed 

 upon the fore and wiped out the imprint of the shortened inner toe. 

 Although plainly present on the right side, in these tracks the outer 



