224 



26 



the entire stone kernel has about the form of a hemisphere. One shown in table III, fig. .3 

 is 18 mm in height and 22 mm in diameter at the edge of the calyx. 



The stone kernel shows traces of about 60 — 64 septa (4 complete cycles and 1 incom- 

 plete). Only the septa of the 3 first ordines have reached any considerable development, 

 the others were small and very little conspicuous. The lower part of the stone kernels shows 

 indications of dissepiments, for sometimes the single stone kernels in the interseptal com- 

 partments are truncated at different heights so that the ending of the stone kernels is oblique. 

 The ending of the stone kernels indicates lack of Columella but that the septal edges in the 

 lowest parts of the coral were contiguous. 



A cut through a single stone kernel reveals a deep calyx and contiguous edges of the 

 septa only in the depth of the calyx. The cut which extends to within about 8 mm of the end 

 of the stone kernel shows no traces of Columella. 



Unfortunately no complete impression of the entire outer side of the coral exists, so 

 it is impossible to state whether it was free or adhered. However, there are impressions of 

 fragments of the coral which show that its costae were well-developed and dentate by means 

 of crosswise furrows. 



No material was attainable for making a longitudinal cut, so it is impossible to describe 

 the septal edges and the lateral surfaces of the septum more closely. 



A stone kernel similar in form but flatter was found at Saltholm and should in my 

 opinion be classified as this species. 



Locality: Danien: Younger Danien: Coral chalk. Faxe, Saltholm. 



17. Parasmilia biseriata, M. U. H. 



Table IV. Figs. 5—9. 



This species is known from cerithium chalk at Stevns Cliff, but has never been found 

 with its lime skeleton in a state of preservation. Only stone kernels and the impressions 

 of the outer surface of the theca are found. 



It attains a length of 23 mm and has a diameter at the edge of the calyx of about 8 mm. 

 The impressions show that the form of the coral was obovate-conical with a bent axis. No 

 aidhesive extension or stem by which the coral had been fastened was observed. It was free. 



The stone kernels are short and obovate-conical, often slightly bent; they do not 

 fill out the impression in more than the two upper thirds. The filling of the interseptal com- 

 partments ends at various heights, thus giving the stone-kernel an irregular, obUquely 

 truncate appearance. This is probably due to the fact that dissepiments at dilTerent heights 

 have prevented the chalk precipitate from penetrating to the bottom of the interseptal 

 compartments. 



The theca was thin, either quite smooth on its outer surface or covered with longitudinal 

 stripes of small granulations without any actual costae formation. The septa did not extend 

 beyond the edge of the calyx; its edge was entire and it soon bent down into the rather 

 deep calyx. The sides were granulated with the small protuberances arranged in oblique 

 rows. The medial septal edges were zig-zag, bent, and joined to the pseudo-columella. 



