Children (5 direct children, 39 direct and indirect children):
        
        
        
            
                Paraspadella
                
                    (tree size 11)
                
                
                
            
                Bathyspadella
                
                    (tree size 3)
                
                
                
            
                Spadella
                
                    (tree size 18)
                
                
                
            
                Hemispadella
                
                    (tree size 1)
                
                
                
            
                Calispadella
                
                    (tree size 1)