83 
Din os a i? h Tracks 
Plate TV 
1 
Figure 1. Gypmchniles pacensis; type, Cat. No. 8553, Geol. Snrv„ Canada; i natural 
size. 
Figure 2. Cast of Ambhjdadylus gethituji; type, Cat. No. 8555, Geol. Surv., Canada; i na- 
tural pize. 
