Pycnodus teeth found in Wilmington, Devon, UK. These teeth are of Cenomanian age, Cretaceous period, that's approximately 93 to 100 million years old. Pycnodus is a genus of ray finned fish which arose in the Cretaceous and existed through to the Eocene. Their body was laterally compressed and they had flattened, peg-like teeth suitable for crushing the shells of prey items. Each tooth is sold separately and they vary in size between are 0.5 and 1 cm in length. Supplied with an information label.