PLATE III 



' PAGE. 



Fig. 1-7. Cladodus Wachsmuthi, St. J. and W 263 



1 a. View of outer face of tooth ; 1 b, base from below, showing scarcely defined bosses in 



front; 1 c, profile sectioD, upper fish-bed Kinderhook. 



2 a. Outer face of slightly smaller tooth ; 2 b, posterior face, showing superior basal region ; 



2 o, inferior basal surface, showing bilobed character of outer basal ridge ; 2 d, pro- 

 file and transverse sections of median cone. Same horizon. 



3 a. Outer face of medium-sized, perfect tooth ; 3 b, base from below ; 3 c, profile and trans- 



Terse sections of median cusp. Same horizon. 



4 a. View of outer face of large tooth. Same horizon. 



5 a. Posterior aspect of medium-sized tooth. Same horizon. 



6 a. Outline of outer face of small tooth -. 6 b, posterior face ; 6 c, inferior basal surface. 



Same horizon. 



7 a. Outline of outer face of very small tooth. Same horizon. 



Fig. 8-12. Cladodus succikctus, St. J. and W 265 



8 a. Outer face of medium-sized, normal specimen, enlarged ; 8 6, inferior basal snrface, nat. 



size; 8c, profile section. Upper fish-bed Kinderhook. 



9 a. Outer face of slightly smaller tooth, showing absence of accessory processes at base of 



median cone, enlarged; 9 b, posterior face ; 9 c, inferior basal surface; 9 d, profile 

 and transverse section of median cone. Same horizon. 



10 a. Outline of outer face; 10 b, outer face, enlarged; 10 c, base from below; 10 d, profile 



section. Same horizon. 



11 a. Median cone of small tooth, enlarged two diameters, showing ornamentation of poste- 



rior face ; 11 &, showing the outer face : 11 c, profile Tiew. Same horizon. 



12 a. Outer face of large tooth, enamel layer partially exfoliated ; 12 b, posterior face ; 12 c, 



base from below, showing constriction in outer basal ridge giving rise to pad-like 

 prominences at either extremity ; 12 d, profile section. Same horizoj. 



Fig. 13-15. Cladodus exjguus, St. J. and W 1 261 



13 a. Outline of outer face of medium-sized tooth ; 13 6, the same, enlarged two diameters ; 



13 c, inferior basal surface ; 13 d, profile section. Lower fish-bed Kinderhook- 



14 a. Outer face of smaller tooth, enlarged two diameters ; 14 b, inferior basal surface, show- 



ing faint bilobed condition of outer basal ridge; 14 c, profile section. SamehorizoD. 



15 a. View of outer face of an abnormally developed tooth, enlarged two diameters; 15 6, 



base fi'om below ; 15 c, profile section. Same horizon. 



