172 



THE BATH OOLITE PERIOD. 



CHAP. 



Cyathophorae, Isastraese, and Thamnastrsese are commonly obtained 

 from the Great oolite at Stonesfield, but rarely from the slaty beds. 

 Mr. Buckman gives several other genera from the clay which 

 overlies the slaty beds at Sevenhampton ; but he regards this clay 

 as belonging to a later stage (Bradford clay). 



Diagram XXXI. Stonesfield Coniferae. 



i. Thuytes articulatus. Sternberg, t. 33, f. 3. 2. Arrangement of some of the 

 leafits. 3. Arrangement of others. 4. Thuytes expansus ? Sternberg, t. 38. f. 2. 

 5. Surface of the small branches. 6. Taxites podocarpioides ? Brong. V. F. 



7. Thuytes divaricatus. Sternberg, t. 39. 8. Ditto. 



FOSSILS OF THE STONESFIELD BEDS. 



ECHINODERMATA. 



Asteroidea. 



Astropecten Cotteswoldii. Buck. Eyeford. 

 Wittsii. Wright. Eyeford. 



Echinoidea. 

 Acrosalenia hemicidaroides. Wright. Stonesfield. 



