218 



PALEONTOLOGY. 



Caryopliyllia, Meandrina, and other cognate genera, are 

 produced by the calcification of the septa of the body. 



As the polyparies of this order are more solid and massive, 

 and their characters are better defined, they are of more 

 importance to the palaeontologist, but we must caution the 

 student against the supposition that they are easily identi- 

 fied; on the contrary, it requires much patient study and accu- 

 rate observation to become acquainted with the fossil genera.* 



"We separate the Anthozoa into two sub-orders Zoo- 

 corallina and Phyto-corallina. The following table gives a 

 general idea of the families : 



ANTHOZOA 



j Zoo-corallina 



Phyto-corallina 



FUNGIADJE 



TUBIPORID.E 

 ALCYONID.K 

 PENNATULID*: 



TlJBULARIDJE 



SERTULARID.S: 

 OCELLID.E 



ASTREADJE 



MADREPORID.E 

 MILLEPORID.E 

 lsio.fi 



GORGONIDJE. 



The palaeontological history of this class proves that each 



FIG. 152. Lithareea Websteri from Bracklesham Bay. 



period has generic and specific forms special to it : that the 



* For British Corals, consult Professor Milne Edwards' Monograph, and 

 Pictorial Atlas, PI. xxxiv. to PI. xl. 



