The Evolution of the Horse

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THE AMERICAN MUSEUM OF NATURAL HISTORY, NEW YORK THE EVOLUTION OF THE HORSE. Formations in Western United States and Characteristic Type of Horse in Each Fore Foot Hind Foot Teeth Quaternary Equus or Age of Man Pleistocene One Toe One Toe Splints of 2 and 4 digits Splints of 2ad and 4 digits Long - Crowned, - BLANCO Pliohippus Pliocene Cement- covered - OGALALLA= Three Toes Three Toes Miocene FARICKAREE Merychippus Side toes Side toes not touching the ground not touching the fround Tertiary JOHN DAY Three Toes or Age of Oligocene WHITE RIVER Mesohippus Side toes Three Toes louching the ground; splint of 5 digit Side toes Mammals EEE三ョ louching the fround Short- 画 言己 引 Crowned, Orohippus without Three Toes BRIDGER Cement Еоcene Four Toes Splints ot and 5t digits 信哥 WASATCH=E E Eohippus Paleocene PUERCO AND JORREJON The Premolar Teeth Hypothetical Ancestors with Five Toes on Each Foot Cretaceous become more and more Age of Reptiles and Teeth like those of Moukeys etc. like true molars Jurassic Triassic Revised 1920. G. S. 10 EVOLUTION OF THE HORSE

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Evolution of the Horse FOREIGN, TWO arleen THIS SPACE MAY BE USED FOR MESSAGE