FOSSIL FOOTPRINTS OF THE JURA-TRIAS. 



The species curvatus approximates intennedms very 

 closely, being distinguished chiefly by its smaller size, by the 

 lesser divergence of the outer toe, and by the distinct inward 

 curvature of tlie middle toe which is present, though to a less 

 degree, in the fourth toe. 



The type specimen is no. ||, of the Hitchcock cabinet, a 

 photograph of which may be seen in E. Hitchcock ('65, pi- 15, 

 fig. 2). This specimen is from Lily pond, at Turner's Falls, 

 Massachusetts (fig. 22). 



503 



<:7 



Anomoepus crassus (C. H. Hitchcock). 

 Apatichnus crassus C. H. Hitchcock. '89b, pp. 118, 122, 



Fig. 22. Anomoepus runutus E. 

 Hitchcock. Imprint of left pes. 

 X |. From the type .specimen, 

 no. ^f. of the Hitchcock cabinet. 



'■\ ///, 



124. 



Specific characters. Pes: divarication of digits 1 and II, 80% of II and HI, 32°; of 

 111 and W, 40° ; of II and IV, 72°. Length of digit II, .085 m. ; of III, .102 m. ; of IV, 

 not including tlie sole pad, .083 m. ; including the sole pad, .120 m^ Length of foot, 

 .11)0 ni. Distance Ijetweeu lateral tips, .140 m. Length of step, .387 m. 

 Manus: width of nupression, .000 m. ; length, .060 m. 



The foot of A. crassus resembles that of 

 A. interrneclms in general form but is con- 

 siderably larger and the hallux is rotated 

 backward to a greater extent than in the 

 latter form. .4. crassits is reported only 

 from New Jersey, the type specimen, which 

 is preserved in the museum of Rutgers col- 

 lege being; from Whitehall, near Boouton, 

 in that state (fig. 23) . 



Anomoepus minimus E. Hitchcock. 



Anomoepus ininimus E. Hitchcock, '65, 

 p. 5, pi. 2, fig. 2. 



Specific characters. Pes: divarication 



of digits II and HI, 40°; of HI and IV, 35°. 



The hallux does not appear on the type 



specimen. The length of digit II is .035 



m. ; of III. .0.10 m. ; of IV, .033 m. Length of foot, .054 m. Heel unknown. 



Fig. 23. Anomoepus crassus C. H. Hitchcock. Im 

 pres.sioii of right pes. X I- From the type specimen ii 

 the museum of Rutgers college. 



