FIGURE 6. Length x width scatter diagrams (in mm) of different teeth of representatives of Capacikala, Capatanka and Palaeocastor. Teeth are differentiated to wear stages. Capacik. – Capacikala, grad – gradatus, Capat. – Capatanka, cank. – cankpeopi, Palaeoc. – Palaeocastor, nebrasc. – nebrascensis, penins. – peninsulatus; Pseudop. – Pseudopalaeocastor, barb. – barbouri, l-m – little to medium worn, m - medium worn, m-s – medium to strongly worn, s – strongly worn. 6.1 and 6.2) lower premolars; 6.3 and 6.4) lower molars 1, 2; 6.5) lower third molars.