 Originally , Brown referred to Corythosaurus as a member of the family Trachodontidae ( now Hadrosauridae ) . Inside Trachodontidae were the subfamilies Trachodontinae and Saurolophinae . Brown classified Hadrosaurus , Trachodon , Claosaurus , and Kritosaurus in Trachodontinae , and Corythosaurus , Stephanosaurus , and Saurolophus in Saurolophinae . 
 Originally , Brown referred to Corythosaurus as a member of the family Trachodontidae ( now Hadrosauridae ) . Inside Trachodontidae <a href='uninflect' title='1'><mark>were</mark></a> the subfamilies Trachodontinae and Saurolophinae . Brown classified Hadrosaurus , Trachodon , Claosaurus , and Kritosaurus in Trachodontinae , and Corythosaurus , Stephanosaurus , and Saurolophus in Saurolophinae . 
Originally , Brown referred to Corythosaurus as a member of the family Trachodontidae ( now Hadrosauridae ) . Inside Trachodontidae was the subfamilies Trachodontinae and Saurolophinae . Brown classified Hadrosaurus , Trachodon , Claosaurus , and Kritosaurus in Trachodontinae , and Corythosaurus , Stephanosaurus , and Saurolophus in Saurolophinae .