(All photographs of the natural size.) 

 Fig. 1. Discosorus regularis sp. nov. 

 „ 2. Actinoceras sp. 

 ,, 3. Discosorus borealis sp. nov. 

 „ 4. Leperditia phaseolus (Hisinger). 

 ,, 5. Leperditia aff. balthica var. guelphica Jones. 

 „ 6. Portion of surface of Gasteropod limestone with Styliolina sp. 

 „ 7. Leperditia cf. caeca Jones (on left of centre of photograph, and mould below top 



right-hand corner). 

 „ 8. Portion of surface of Ealysites labijrinthica (Goldfuss). 



