13 



211 



Hydro-coral chalk from Limhamn: 



Haplophyllia faxensis. 

 Dendrophyllia candelabrum; 

 Ceratoirochus ainbiguus, 

 Ceratotrochus Milthersii. 

 Epitrochiis pus illus, 

 Epitrochus supracretacea, 

 Coelosmilia brevis, 

 Parasmilia Lindstromi, 

 Smilolrochus faxoensis, 

 Ainfihelia Beckii. 



Herfölge gravel chalk: 



Ceratoirochus Sallholmensis. 



Copenhagen harbour: 



Ceratoirochus Sallholmensis, 

 Flabellum calcitrapa, 

 Sphenotrochus talus. 



Ravnstrup^): 



Ceratoirochus Sallholmensis. 



" Vestre Gasværk", Copenhagen: 



Flabellum calcitrapa, 

 Sphenotrochus latus. 



As these lists show, a sharp distinction exists between the senone and the Danien 

 species. The distinction between older and younger Danien is quite clear, only one species 

 being common to both, Parasmilia parva. Most of the forms are common to the three 

 divisions, the chalk formation, the tertiary formation and the present time; two, Dendro- 

 phyllia and Amfihelia are only known from the tertiary formation and the present time. 



1) The chalk from Ravnstrup is a gravel chalk of the same species as the upper chalk at Herfölge. Its 

 content of fossils resembles that of Herfölge at every point. 



