A CONÏUIlirTIOX To TJIi; GENU« FU.Sl'MXA. 21 



Fasullna alj)ina coiiimunis 



Fasulhia m uli'iseptala 



Fusulina rcgularis 



Fusulina incisa Schellw. 

 1) The lowest zone of Fusidiiia. 



Fusulina alj^ina var. anliqita 



Fusulina alpina var. communis. 



Fusulina tenuissima 

 In the lowest zone there are also Amblysi^y/ionella s|)., 

 Lonsdaleia floriformis Flem., Spirifer fasciger Keys., S. trigonalis 

 Mart., var. lata Schellw., Reticidaria. lineatus Mart., Productus 

 semlreticulatus Mart. 



Asturia, Spain : — A /^V^v/Zma-liniestone forms the base of 

 the upper Ca r))on itérons exposed in the district ; it contains, 

 beside Fusulina cylindrica and some other forms of the same 

 genus, an important leading fossil Spirifer mosquensis.^^ 



Para, Brazil : — The Carboniferous fauna of Tapajos is very 

 rich in Corals, Crinoids, Bryozoa, Brachiopoda, Lamellibranchiata, 

 and Gasteropoda, while Fusulina is very rare. The last is reported 

 to occur at Itaituba.'^ 



Russian Sea. 



Russia: — In central Russia, the upper Carboniferous series 

 is divided into two well known groups : — the lower or Moscovian 

 stage (horizon of Spirifer mosquensis) and the upper or (xshelian 

 stage (horizon of Ghonetes uralica). 



In the upper Carboniferous rocks of the Ural mountains, two 



1) Meunier reported tlie occurrence of :i limestone containing Fasuliiifi at Morvan, 

 central France, but according to F- Frech, it is not a true Fusulina hut a FimdincUn. 



2) Katzek: Grundziige der Geologie des unteren Amazonas Gebietes, i90J. 



