LOWER CHALK—LINCOLNSHIRE. 
m 
Fossils from the Lower Chalk of Lincolnshire.— contd. 
Zone of 
Ammonites 
varians. 
Zone of Offaster Spheericus. 
Totternhoe 
Stone. 
Upper beds. 
Crustacea. 
Pollicipes sp. ----- - 
- 
X 
- 
Annelida. 
Serpula antiquata, Sow. - 
- 
X 
X 
,, umbonata, Mant. 
- 
X 
X 
„ Sp. ----- 
X 
— 
— 
Echinodermata. 
Cidaris dissimilis, Forbes 
— 
X 
— 
„ cf. seeptrifera, Mant. 
— 
— 
X 
Discoidea cylindrica, Lam. 
X 
X 
X 
Goniaster (ossicles) - - - - 
- 
- 
X 
Holaster subglobosus, Leske 
X 
X 
X 
„ trecensis, Leym. (low var.) - 
X 
- 
X 
Off aster spbsericus, Schliiter 
- 
X 
X 
Pseudodiadema variolare, Brongn. - 
X 
— 
— 
Spongida. 
Bracbiolites sp. - 
- 
X 
