Keywords: Cylindraspis skulls.jpg Skull of Cylindraspis sp 8 skull of Cylindraspis inepta 7 skull of Cylindraspis triserrata 8 http //www biodiversitylibrary org/page/31083700 page/403/mode/1up 1893 Hans Gadow PD-old Cylindraspis Cylindraspis inepta Cylindraspis triserrata |