Hipparion (English spelling)

Japanese: ヒッパリオン（英語表記）Hipparion

A small horse that lived in the Pliocene period of the Neogene, belonging to the suborder Equidae of the order Perissodactyla and the family Equidae. It evolved from Merychippus , which lived in the Miocene period of the Neogene. It was about the size of a donkey, and had three toes on both its front and back feet, which is why it was given the name Sanshiba (three-toed horse) in China. It had high tooth crowns, molar cones with complex enamel interlocking, and holes in its incisors. Its cheek teeth were columnar, but about half the height of modern horses. It was distributed in Eurasia, North America, and Africa. (→Perissodactyla)

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

奇蹄目ウマ亜目ウマ科に属し，新第三紀鮮新世にいた小型のウマ。新第三紀中新世のメリキッパス Merychippus から分化した。ロバぐらいの大きさで，足の指は前後肢ともに 3本あり，このため中国において三趾馬（さんしば）の名がついた。高歯冠，エナメル質の複雑な入り組み方の臼歯錐をもち，門歯には孔がある。頬歯は柱状であるが高さは現生のウマの約半分。ユーラシア，北アメリカ，アフリカに分布していた。（→奇蹄類）

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