However , in the 1990s exact cladistic analysis showed that both genera were chasmosaurines .
It was thus placed in a different branch from Triceratops which well into the 1980s was seen as a member of the Centrosaurinae because of its short frill .
In the 1990s exact cladistic analysis showed that both genera were chasmosaurines .
It was thus placed in a different branch from Triceratops which well into the 1980s was seen as a member of the Centrosaurinae because of its short frill .