290 



BRACKLESHAM BEDS. 



[Cu. XVI 



the lower beds of the calcaire grossier in France, where it sometimes 

 forms stony layers, as near Compiegne, is very common at BracMe- 

 sham, together with JV. scahra and N. variolaria. Ont of 193 species 

 of testacea procured from the Bagshot and BracMesham beds in 

 England, 126 occur in the calcaire grossier in France. It was clearly, 

 therefore, coeval with that part of the Parisian series more nearly than 

 with any other. 



Fig. 240. 



Fig. 241. 



Fig. 242. 



Fig. 243. 



Carcharodon heterodon, Otodus obHqum, Lamna elegans, Galeocerdo latidme 



Agass. Agass. Agass. Agass. 



Teeth of sharks from BracMesham Bay. 



Marine Shells of BracMesham Beds. 



Fig. 244. Fig. 245. Fig. 246. Fig. 247. 



Fig. 248. 



Pleurotoma attenu' Vohita Sel- Turritella Zucina serrato, Dixon. Conus deper- 

 ata, Sow. se'iensis, mulUsulcata, Magnified. ditus. 



Edwards. Lam. 



VEGETATION OF MIDDLE EOCENE PERIOD. 



The plants of Alum Bay in the Isle of Wight, and of Bournemouth, 

 on the south coast of Hampshire, imbedded in white clays of the 

 Middle Eocene series, bear a great resemblance generally to those of 

 the Miocene period, as described in the last chapter ; but the species 

 are with very few exceptions quite distinct. Forty of these are men- 

 tioned by MM. de la Harpe and Gaudin, among which the Proteacese 



