[Quart. Journ. Geol. Soc. Vol. LXXVIII, Part 4. 



Hemer^) and the last Part of the Domerian. 



Northamptonsliire 

 (Byfleld, etc.). 



fCf. Harpoceratoides. 



Lincolnshire Yorkshire 



(Grantham, etc.). (Whitby neighbourHood). 



(^Ila rpocera toides. 



t_Giautham Amm. Grant ham Ainni. 



exaratimi. 



< 



Eleganticeras. 

 \JElega ntuliceras. 



rxi f Sandy clay. 



m 



A I Tiltoniceras. 



Dactyloids, c£, 

 ^ l^ athleticum. 



o . r Tiltoniceras. 



-4-3 Vj 



^ L Dactyloids, 



t 'rt tenuicosfafum. 

 [Tiltoniceras. 



athleticum. 





P. Jiawskerense. 

 P. regulare. 



11. 



10. 

 9. 



7. 

 6. 



5. 

 4. 



3. 



2. 

 1. 



2. 



L 



