Children (4 direct children, 17 direct and indirect children):
        
        
        
            
                Argentinoidea
                
                
                
            
                Pattersonellidae
                
                    (tree size 3)
                
                
                
            
                Leptochilichthyidae
                
                    (tree size 10)
                
                
                
            
                Alepocephaloidea