92 



CEOCODILIA. 



Genus DACOSAURUS, Quenstedt 1 . 

 Syn. Plesiosuchus , Owen 2 . 



The skull short and broad, with no trace of premaxillary expan- 

 sion, and without sculpture; palatal aspect of anterior part of 



Fig. 13. 



Dacosaurus maximus. — Crown of tooth ; from the Kimeridge Clay of Ely. 

 \. (From the ' Quart. Journ. Geol. Soc.') 



maxilla3 flat ; teeth (fig. 13) few in number, stout, smooth, with two 

 slightly serrated carina?, and a suboval cross-section. 



Dacosaurus maximus (Plieninger 3 ). 



Syn. Geosaurus maximus, Plieninger 4 . 

 Including : — Steneosaurus manseli, Hulke 5 . 



Dacosaurus lissocephalus, Seeley 6 . 



Dacosaurus primcevus, Sauvage 7 . 



Plesiosuchus manseli, Owen 8 . 



Dacosaurus manseli, A. S. Woodward 9 . 



The type species ; somewhat smaller than Machimosaurus mosce. 

 Teeth — , three or four of the lower ones being post-symphysial. 



Nasals not reaching the premaxillae {infra No. 40103). The writer 

 sees no reason for separating Steneosaurus manseli from the present 



1 Sonst und Jetzt, p. 131 (1856).— Amended. 



2 Quart. Journ. Geol. Soc. vol. xl. p. 153 (1884). 



3 Jahresh Yer. Nat. Wiirtt. vol. ii. p. 150 (1846). — Geosaurus. 



4 Loc. cit. 



5 Quart. Journ. Geol. Soc. vol. xxvi. p. 170 (1870). 



6 Index to Aves &c, in Cambridge Museum, p. 92 (1869). — Not figured. 



7 Bull. Soc. Geol. France, se>. 3, vol. i. p. 380 (1873). 



8 Quart. Journ. Geol. Soc. vol. xl. p. 153 (1884). 



9 Geol. Mag. dec. 3, vol. ii., table facing p. 508 (1885). 



