326 



FOSSILS OF UPPER CRETACEOUS ROCKS. [Ch. XVII. 



chambered univalves, of the genera Ammonite, Scaphite, Belemnite 

 (fig. 290), Bacnlite (291-293), and Turrilite (296, 297), with other 



Fig. 291. 



Baculites anceps. Upper Greensand, or chloritic marl, craie chloritee. France. 

 A. d'Orb., Terr. Cret. 



Fig. 293. 



Portion of BacuUtes Faxtgasii. Portion of Baculites anceps. 



Maestricht and Faxoe beds and white chalk. Maestricht and Faxoe beds and white chalk. 



Fig. 294 



Fig. 295. 



Marsupites Miller i. 

 "White chalk. 



^caphites cequalis. Chloritic marl 

 of Upper Greensand, Dorsetshire. 



Fig. 296. 



Fig. 297. 



TurriUtes costatus. 

 Chalk. 



a. Fragment of TurriUtes costatus. 

 Chalk marl. 



o. Same, showing the foliated border 

 of the partition of the chambers. 



allied forms, present a great contrast to the testacea of the same class 

 in the Tertiary and Recent periods. 



