If I made a prehistoric cinna species I would call them cinnasaurs. They're bigger, bulkier, and have thicker skin than the average cinna. The body of a cinnasaur would be more angular than round though not all that sharp because of their thick skin. They also have very large claw like feet.
Cinnasaur flavors would mostly be from extinct plants and sealife that prehistoric animals used to eat. They could also be based off of prehistoric puns to add more variety. Flavors would also very...