492 



STRATIGRAPHICAL GEOLOGY 



Fossils of the Selbornian and Albian 



Porifera. Chenendopora Michelini, Doryderma Benettise, Siphonia 



tulipa, Barroisia Orbignyi. 

 Hydrozoa. Parkeria sphserica. 



Fig. 167. GROUP OF SELBORXIAN FOSSILS (OAULT). 



a. Trochocyathns conulus. 



b. Inoceramus sulcatus. 



c. Plicatula gurgitis. 

 rf. Aporrhais carinata. 



c. Scalaria gaultina. 



/. Bellerophina ininuta. 

 g. Hoplites spleiidens. 

 h. Hamites attenuatus. 

 ?'. Nucula pectinata. 

 t. Natica gaultina. 



/. Lima parallela. 



Actinozoa, Cyclocyathus Fittoni, Trochocyathus conulus. 



Ecliinoderma. Cardiaster fossarius, Cidaris gaultina, Echinospatagus 



murchisonianus, Cottaldia Beuettiae, Pentacrinus 



Fittoni. 



