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	Kumatostephanus
          
            Classification
            
                  Phylum:  
              
                Mollusca              
            
            
                  Class:  
              
                Cephalopoda              
            
            
                  Order:  
              
                Ammonitida              
            
            
                  Superfamily:  
              
                Haplocerataceae              
            
            
                  Family:  
              
                Stephanoceratidae              
            
            
                  Formal Genus Name and Reference:  
              
                Kumatostephanus BUCKMAN, 1922              
            
            
                  Type Species:  
              
                K. kumaterus              
              
            
            Images
                        (Click to enlarge in a new window)
            
            
                
                  Fig. 342,2. *K. kumaterus, Eng., x0.2 (65*).                
            
            
            Synonyms
            
              
                Gibbistephanus              
            
            
            Geographic Distribution
            
              
                Eu.              
              
            
            Age Range
            
                  Beginning Stage in Treatise Usage:  
              
                M.Baj.(sowerbyi z.)              
            
            
                  Beginning International Stage:  
              
                Bajocian              
            
            
                  Fraction Up In Beginning Stage:  
              
                33              
            
            
                  Beginning Date:  
              
                170              
            
            
                  Ending Stage in Treatise Usage:  
              
                M.Baj.(sowerbyi z.)              
            
            
                  Ending International Stage:  
              
                Bajocian              
            
            
                  Fraction Up In Ending Stage:  
              
                66              
            
            
                  Ending Date:  
              
                169.1              
              
            
            Description
            
              
                Early nontuberculate forms of perisphinctoid appearance              
              
            
            
            References
            
              
                              
            
            
            Museum or Author Information
            
          
        
Classification
                  Phylum:  
              
            
                Mollusca              
            
                  Class:  
              
            
                Cephalopoda              
            
                  Order:  
              
            
                Ammonitida              
            
                  Superfamily:  
              
            
                Haplocerataceae              
            
                  Family:  
              
            
                Stephanoceratidae              
            
                  Formal Genus Name and Reference:  
              
            
                Kumatostephanus BUCKMAN, 1922              
            
                  Type Species:  
              
            
            
                K. kumaterus              
              Images
(Click to enlarge in a new window)
                  Fig. 342,2. *K. kumaterus, Eng., x0.2 (65*).                
            Synonyms
                Gibbistephanus              
            Geographic Distribution
                Eu.              
              Age Range
                  Beginning Stage in Treatise Usage:  
              
            
                M.Baj.(sowerbyi z.)              
            
                  Beginning International Stage:  
              
            
                Bajocian              
            
                  Fraction Up In Beginning Stage:  
              
            
                33              
            
                  Beginning Date:  
              
            
                170              
            
                  Ending Stage in Treatise Usage:  
              
            
                M.Baj.(sowerbyi z.)              
            
                  Ending International Stage:  
              
            
                Bajocian              
            
                  Fraction Up In Ending Stage:  
              
            
                66              
            
                  Ending Date:  
              
            
            
                169.1              
              Description
                Early nontuberculate forms of perisphinctoid appearance              
              