FOSSIL FOOTPRINTS OF THE .TT^RA-TRIAS. 



497 



to 1(3 ; of II and IV , 

 35° to 40°. Length of 

 digit II, .026 m.; of III, 

 .035 in. ; of IV, .030 in. 

 Distance between later- 

 al tips, .027 in. Length 

 of foot. .045 m. Pro- 

 jection of middle toe 

 he_yond tlie lateral ones, 

 .017 in. Length of step, 

 .315 m. 



Charles Hitchcock's 

 character of the non-ex- 

 tension of the inner toe 

 so far as the outer one 

 seems to be inconstant 

 for they are about equal 

 in extent in the present 

 author's figure, from 

 no. \^ (Hitchcock cabi- 

 net). This, one of the 

 most diminutive of dino- 

 saur tracks, represents a 

 foot about two thirds the 

 length of that of Comp- 

 sognathus of the lower 

 Kimeridgiau limestone 

 of Bavaria, the smallest 

 known form. 



The type is no. ~, 

 of the Hitchcock cabi- 

 net, on red shale from 

 Turner's Falls, Massa- 

 chusetts, and the figured specimen is no. ^ from the same locality (fig. 17) . The species 

 is reported from Massachusetts and New Jersey. 



Via. 11). Grallatur formosus E. Hitclicock. Imprint of tlu- lell pes. 

 the type specimen, no. f, of the Hitclicuck cabinet. 



From 



