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"Upper Sectorial Teeth of Carnivora. I, Felis; II, Canis; III, Ursus, 1, anterior, 2, middle, and 3, posterior in position, and without distinct root, characteristic of the Ursidae." —The Encyclopedia Britannica, 1903

Carnivora

"Upper Sectorial Teeth of Carnivora. I, Felis; II, Canis; III, Ursus, 1, anterior, 2, middle, and 3,…

"Modifications of the Lower Sectorial Tooth in Carnivora. I, Felis; II, Cunis; III, Herpestes; IV, Lutra; V, Meles; VI, Ursus. 1, anterior lobe of blade; 2, posterior lobe of blade; 3, inner tubercle; 4, heel. It will be seen that the relative size of the two roots varies according to the development of the portion of the crown they have respectively to support." —The Encyclopedia Britannica, 1903

Carnivora

"Modifications of the Lower Sectorial Tooth in Carnivora. I, Felis; II, Cunis; III, Herpestes; IV, Lutra;…