Large sized Columbian ground squirrel skull. 1.75" - 2." in length. Very nice good quality skull taken from a subadult squirrel. The two lower P1 premolars are just erupting. The upper P1 & P2 premolars are just erupting. One upper P2 premolar still has the baby tooth covering the adult tooth, which can be seen just erupting underneath. The turbinate nasal structures were slightly dislodged as the beetles worked to remove the flesh. The incisors are very long in length and are a pale yellow to white color. Professionally BEETLE cleaned and whitened.