ICHTHY0SAT7RID.E. 7 



This genus is at present unrepresented in the Museum ; the 

 pelvic limb is shown in fig. 5. Two species have been named, 

 viz. : — 



Baptanodon natans, Marsh l , 

 Bajptanodon discus, Marsh 2 , 



both being from the Upper Jurassic of North America. 



Fig. 5. 



ppiH 



^^ 



— — ' 



£> 



) 



£o° 



c 



)c 



3 



o0 0( 



OH r> 



DC 



0( 



D 



3 







°ooR 



0- 







o 



°oO O 



o 



o 







°o O O 



n 















o 



o ° 



, o 



o 





o C 



5 

 ° o 











° < 



) 



a 





Baptanodon natans, Marsh.— Dorsal aspect of the left pelvic limb; from the 

 Upper Jurassic of North America. Reduced. T, tibia; i, fibula ; F, 

 homologue of pisiform ; t, tibiale ; c (left side), intermedium ; c (right), 

 fibulare ; f, postaxial bone of tarsus ; the two bones immediately below the 

 intermedium are the centralia. (After Marsh — from the 'Proc. Geol. 

 Soc.') 



1 .\"ier. Jo urn. ser. •">. vol. wii. \\ 86 (W-O. Savranodon. 

 ■ Ibid. vol. xix. p. 491 | 188C>). 



