CATALOGUE 



OF 



FOSSIL REPTILIA 



AMPHIBIA. 



Class REPTILIA. 



STREPTOSTYLIC BRANCH (continued). 

 Order ICHTHYOPTERYGIA. 



According to the arrangement of Baur \ who in this respect follows 

 the lead of Owen, the Ichthyopterygia are provisionally included in 

 the Streptostylic branch, of which they constitute a well-defined 

 order modified for a marine existence, and retaining certain Laby- 

 rinthodont features which are lost in the other orders \ 



1 Biol. Centralblatt, vol. vii. pp. 482, 486, 491 (1887). See also Araer. Nat. 

 vol. xxi. p. 837 (1887) ; and Bericht xx. Versamml. oberrhein. geol. Verein. 

 p. 18 (1887). 



2 Cope, Amer. Nat. vol. xix. p. 245 (1885), has proposed to place the 

 Ichthyopterygia in a division ranked as of equal value with that containing all 

 the other Reptiles. Seeley, 'Phillips' Manual of Geology,' 2nd ed. pt. i. 

 pp. 515-517, has proposed to affiliate this order with the Dinosauria. 



PART II. U 



