<P> Torosaurus is a ceratopsid genus first identified from a pair of skulls in 1891 , two years after the identification of Triceratops . The Torosaurus genus resembles Triceratops in geological age , distribution , anatomy and physical size and it has been recognised as a close relative . Its distinguishing features are an elongated skull and the presence of two fenestrae , or holes , in the frill . Paleontologists investigating dinosaur ontogeny ( growth and development of individuals over the life span ) in the Hell Creek Formation , Montana , US , have recently presented evidence that the two represent a single genus . </P>
<P> Torosaurus is a ceratopsid genus first identified from a pair of skulls in 1891 , two years after the identification of Triceratops . The Torosaurus genus resembles Triceratops in geological age , distribution , anatomy and physical size and it has been recognised as a close relative . Its distinguishing features are an elongated skull and the presence of two fenestrae , or holes , in the frill . Paleontologists investigating dinosaur ontogeny ( growth and development of individuals over the life span ) in the Hell Creek Formation , Montana , US , have recently presented evidence that the two represent a single genus . </P>
what is the closest relative to the triceratops
what is the closest relative to the triceratops
Torosaurus
Torosaurus