530 



STRATIGRAPHICAL GEOLOGY 



Fossils of the Woolwich and Reading Beds 



Lamellibranchia. Corbicula cuneiformis, C. tellinella, Cyprina Morrisi, 

 Ostrea bellovaciua, O. tenera, Unio subparallela. 



Gastropoda. Potamides funatus, Calyptrea aperta (=trochiformis), 



Melanopsis buccinoidea, Melanatria inquinata, 

 Neritina globulus, Pitharella Rickmani. 



Fig. 177. FOSSILS OF THE WOOLWICH BEDS. 



a. Melania inquinata. 

 6. Potamides funatus. 



c. Pitharella Rickmani. 



d. Ostrea bellovacina. 



e. Unio subparallela. 

 /. Ostrea tenera. 

 g. Corbicula cordata. 

 h. Corbicula tellinella. 



Fossils of the London Clay 



Annelida, Ditrupa plana, Vermicularia bognoriensis. 



Crustacea. Hoploparia Belli, Xanthopsis Leachi. 



Brachiopoda. Lingula tenuis, Terebratulina striatula. 



