Triceratops is a genus of dinosaurs from the late Cretaceous era (70-65 million years ago), the largest and best known member of the ceratopsian family. Its name come from the three distinctive horns on its head - the name means "three horned face". Like Allosaurus, it was native to North America.

I only noticed after I'd finished this strip that Will and Ophelia seem to have swapped seats since #618. I guess they need to do more to amuse themselves through Mr Marlowe's PowerPoint presentations than just discuss politics.