81 
Dinosaur Tkacks Plate III 
Fi^uro 1 . Irenesauripus oceidentalis ; type, in situ, Peace River canyon. Note the thin- 
bedded, ripple-inarked sandstone. 
Figure 2. Irenexauripm acutun, photographed from type trackway; | natural size. 
Figure 3. C ohimbosauri pus ungulalus ; type, Cat. No. 8551, Gcol. Surv., Canada; § natural 
size. 
