It was seen as a late member of a line descending from Anchiceratops or Arrhinoceratops .
Torosaurus has , with its long frill , traditionally been classified in the Chasmosaurinae .
Torosaurus was seen as a late member of a line descending from Anchiceratops or Arrhinoceratops .
Torosaurus has , with its long frill , traditionally been classified in the Chasmosaurinae .