15 



213 



Calamophyllia Faxoensis Beck 1848. M. Alcide d'Orbigny: Prodrome de Paléontologie 

 vol. II, p. 295. 



Calamophyllia Faxoensis, 1851, d'Orbigny, Leonhardt, et Bronn: Neues Jarhb. f. Minera- 

 logie Jahr. 1851, p. 100—102 (Synopsis of A. d'Orb. Ueber die fossile Reste des 

 Terrain Danien oder T. pisolithique). 



Rhabdophyllia faxensis 1854. Milne, Edw. et Jules Haime: Recherches sur la structure 

 et la classification des polypiers récents et fossiles. Annales des sciences nat. 3 sér. 

 Zool. V. IX— XVI. 



Caryophyllia faxensis Beck 1866. (Calamoph. f. d'Orb.) Fischer Benzon: Ueber das relative 



Alter des Faxekalkes, p. 19. 

 Caryophyllia faxensis Beck. 1888. Lundgreen: List of fossil fauna of Sweden. Ill Mesosoic. 

 Lobopsammia faxensis Beck. 1899. Hennig: Faunan i Skaanes yngre Krita III. Korallerne. 



Bih. til K. svenska Vet. Akad. Handl. Bd. 24. Afd. IV. Nr. 8. Stockholm. S. 11. 



As the list of synonymia shows, this species was known in early times. This is not sur- 

 prising for it belongs to those corals which give the coral chalk at Faxe its characteristic 

 appearance. Its determination, however, proved difficult, but as may be seen, d'Orbigny 

 had already noted it as a Calamophyllia. However, as it does not possess the exothecal 

 extensions, (Collerette), which distinguish genus Calamophijllia it must be classified with 

 the closely related genus Haplophyllia. 



Hennig determines it as a Lobopsammia for he presupposes it to belong to the porous 

 coral group; however, this conclusion rests on an error doubtless due to the insufficiency 

 of his material. Only stone kernels and impressions were at his disposal and so it was difficult 

 for him to distinguish this form from Dendrophyllia candelabrum. His sketch of a cross- 

 section of a Lobopsammia branch (Plate I, fig. 16) is, as a matter of fact, a cross-section 

 of a Dendrophyllia branch identical with fig. 10 of the same plate. 



Indeed the cross-section plainly shows the coral tube to be a non-porous coral 

 entirely lacking the lacunous edge so characteristic of the Dendrophyllia. 



The coral forms bushy colonies of considerable size, characterized by dichotomous 

 self-dividing ramifications. Nowhere are the epithecal formations known as collerettes to 

 be seen, but occasionally plate-like formations uniting some of the branches appear (table 

 I, fig. 1). The branches in the same colony increase but slightly in circumference so 

 that there is very little dilTerence between the older and younger ones. A single individual 

 is located at the extremity of each branch. 



The calyx is rather deep, broad and cup-shaped, for the septa in the upper part of the 

 calyx project only slightly from the thickened sharply truncated edge of the calyx. The 

 theca is quite thick without epitheca, usually smooth, but sometimes, especially at the extre- 

 mities of the branches, slightly protruding granular costae are seen. 



In the upper part of the calyx the septa are only slightly distinguishable from the edge 

 of the theca, further down they protrude from the walls of the calyx, while at the bottom 

 of the deep calyx they intercept and coalesce with its inner edges. 



The number of septa varies from 30 — 40, being as a rule about 36. It is usual to find 



