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"Successive stages of modification of the feet of extinct forms of horse-like animals, showin gradual reduction of the outer and enlargement of the middle toe (III). Orohippus (Eocene)." — Encyclopedia Britannica, 1893

Horse Foot

"Successive stages of modification of the feet of extinct forms of horse-like animals, showin gradual…

"Tinoceras, or tinotherium, is a genus of mammals now extinct, found in the Eocene, and representing the order Dinocerata. The individuals were all large, some of them nearly equaling the elephants, while the brain was smaller than that of any living or fossil mammal."—(Charles Leonard-Stuart, 1911)

Tinoceras

"Tinoceras, or tinotherium, is a genus of mammals now extinct, found in the Eocene, and representing…