Э96 Kabl А. Grönwall. 



locality in question is now considered as belonging to the lower 

 part of the Upper Carboniferous system. 



We have nothing special to remark concerning the next mem- 

 bers of the sequence — the Cora limestone and the Spirifer lime- 

 stone — in the Beeren Eiland Carboniferous series, other than the 

 decided unconformity existing between these two deposits. 



The oldest part of the marine Carboniferous of Spitzbergen is 

 embraced under the denomination ''Cyathophyllum limestone"; it 

 covers, unconformably, the Kulm or Devonian, and, in some places, 

 a basal conglomerate has been observed. In the Cyathophyllum 

 limestone, immediately above this conglomerate, Holtedahl has 

 obtained in King's Bay a fauna belonging to the mosquensis zone; 

 otherwise no fossils have been observed in the lower part of this 

 deposit. Within the Cyathophyllum limestone, an ancient division 

 has been made of a Fusulina level and, beneath this, the Cora lime- 

 stone. Wlman, in his discussion of the brachiopod fauna, has neg- 

 lected these divisions, and has placed the species occurring in the 

 Cyatophyllum limestone under one head in his list. As regards the 

 Fusulina limestone. Holtedahl (1912, p. 38) has made observations 

 that tend to show that the Fusulina limestone lies at various levels 

 in various places, although he sees no reason to doubt (p. 36) that 

 the Fusulina limestone investigated by him really represents a strati- 

 graphical zone, belonging to a certain epoch. Wiman draws the 

 conclusion that, in these enormous sections, more than one Fusu- 

 lina zone can be encountered, at such places where, for one reason 

 or another, a foraminiferal facies has been developed. The FusuHna 

 limestone proper here in Spitzbergen is highly bituminous, and 

 has received the denomination from Staff and Wedekind of "For- 

 aminiferal sapropelite", but Fiisulinae occur also in the ordinary 

 Cyathophyllum limestone, so that the Fusü//na-bearing zone is evid- 

 ently of greater thickness than that of the Fusulina limestone proper. 



The Cyathophyllum limestone of Spitzbergen is of considerable 

 thickness; Wiman and B. Högbom have, at Cape Anser in Klas Bil- 

 len Bay, measured a section of about 460 metres (Nathorst, 1910, 

 p. 347, and Wiman, 1914, p. 11), and Holtedahl (1912, p. 41) gives 

 from King's Bay for Kjærs Berg 400—450 metres, and for Scheteligs 

 Berg 450 — 500 metres. 



Petrologically, certain divisions of the Cyathophyllum lime- 

 stone present fairly great agreement with certain parts of the strata 

 of North-east Greenland, especially as regards the almost dense or 

 very fine-grained limestones (W. of and in Koch's section), which 

 are usually of a light grayish-red tinge — with the dense, light lime- 

 stones with stylolithes, and wilh the bituminous shales. This rock. 



