56 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 80 



extremities, without claws, and short, broad sole rounded behind. 

 The type shows the presence of only four digits but the faint im- 

 pression of the sole which gradually fades out on the right hand side 



Fig. 27. — Parabaropus coloradensis (Lull) No. 11,598, U. S. N. M. 

 Diagram of left hand side of trackway. About I natural size. 



of the track indicates that is was sufficiently wide to carry a fifth toe. 

 A tracing made from the type track without restoration is shown in 

 figure 28. 



